DC1460 Service Manual

RDC-1460 SERVICE MANUAL Published in Apr. ’98 19570762 Revision 2 DC-1460 S/M (MCA) DC-1460 CAUTION: DOUBLE-POLE / NEUTRAL FUSING Service Manual DC-1460 R Safety precautions This booklet provides safety warnings and precautions for our service personnel to ensure the safety of their customers, their machines as well as themselves during maintenance activities. Service personnel are advised to read this booklet carefully to familiarize themselves with the warnings and precautions described here before engaging in maintenance activities. General warning. Warning of high temperature. CAUTION: Bodily injury or damage to property may result from insufficient attention to or incorrect compliance with warning messages using this symbol. The specific point of attention is shown inside the symbol. The specific prohibition is shown inside the symbol. General prohibited action. . WARNING: Serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol. indicates a prohibited action. Warning of risk of electric shock. Symbols The triangle ( ) symbol indicates a warning including danger and caution. Disassembly prohibited. These symbols are described below: DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol.Safety warnings and precautions Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property. ................................... ........ Connecting the earth wire to an object not approved for the purpose may cause explosion or electric shock. • Do not install the copier in a humid or dusty place......... • Connect the ground wire to a suitable grounding point. Insufficient ventilation may cause heat buildup and poor copying performance........................... ......... Remove the power plug from the wall outlet................................. heater... Not grounding the copier may cause fire or electric shock.......... Installation Precautions WARNING • Do not use a power supply with a voltage other than that specified...................... General action required..... always check that it is adequate for the rated current..... lightning rods.........indicates that action is required......... 1.......... causing injury....................... ... • Allow sufficient space around the copier to allow the ventilation grills to keep the machine as cool as possible. ................ Never connect the ground cable to any of the following: gas pipes.... Avoid multiple connections to one outlet: they may cause fire or electric shock... ...... ... • Do not install the copier near a radiator...... When using an extension cable.. Always ground the copier.... ground cables for telephone lines and water pipes or faucets not approved by the proper authorities.... other heat source or near flammable material............ ..... This may cause fire or electric shock... The specific action required is shown inside the symbol.................................... This may cause fire................ CAUTION: • Do not place the copier on an infirm or angled surface: the copier may tip over. . ....... Using a piece of wire.. leading to injury. • When the service manual or other serious brochure specifies a distance or gap for installation of a part.. • Always use the thermostat or thermal fuse specified in the service manual or other related brochure when replacing them........ for example................................• Always handle the machine by the correct locations when moving it........... .... drink a lot of water to dilute it in the stomach and obtain medical attention immediately.................... ..... Protect the eyes........................... If it gets into the eyes............. .............................. ...... ................................................ rinse immediately with copious amounts of water and obtain medical attention... Failure to do this may cause the copier to move unexpectedly or topple......... ..... always use the correct scale and measure carefully........ ........ • Always use anti-toppling and locking devices on copiers so equipped.......................... • Under no circumstances attempt to bypass or disable safety features including safety mechanisms and protective circuits... ........................................... If toner or developer is accidentally ingested.................... • Always follow the procedures for maintenance described in the service manual and other related brochures................................................................... • Advice customers that they must always follow the safety warnings and precautions in the copier’s instruction handbook...................... • Always use parts having the correct specifications...... ............. ....... Precautions for Maintenance WARNING • Always remove the power plug from the wall outlet before starting machine disassembly........... ........................... • Always check that the copier is correctly connected to an outlet with a ground connection.................. 2........................... • Avoid inhaling toner or developer excessively.... could lead to fire or other serious accident.................................. .............................. Keep away from chains and belts................. .......... ............... If it is dirty..................... ........ protect it with a cable cover or other appropriate item.......................................... ......... • Do not pull on the AC power cord or connector wires on high-voltage components when removing them..... • Handle the fixing section with care to avoid burns as it can be extremely hot.... .........• Check that the power cable covering is free of damage..... • Do not remove the ozone filter........ • Never attempt to disassemble the optical unit in machines using lasers................................ ............ They are charged to high potentials and may cause electric shock if handled improperly....................... Check that the power plug is dust-free.................. ..... ......................... always hold the plug itself...................... ... ........ Dirt on them can cause abnormally high temperatures..................................... • Run wire harnesses carefully so that wires will not be trapped or damaged...... • Handle the charger sections with care...... • Use utmost caution when working on a powered machine... If necessary..................................... • Treat the ends of the wire carefully when installing a new charger wire to avoid electric leaks.. • Check that the fixing unit thermistor...................... from the copier except for routine replacement......................... if any... heat and press rollers are clean...... • Remove toner completely from electronic components................ make sure they are safely secured so they will not be caught in rotating sections........ . ....... If wearing loose clothing or accessories such as ties............ Leaking laser light may damage eyesight................................................................................................................................ ................................................ ....................... clean it to remove the risk of fire or electric shock. CAUTION • Wear safe clothing................. • Do not route the power cable where it may be stood on or trapped............ ........................ connectors and wires that were removed...... ............. · Allow applied solvents to evaporate completely before refitting the covers or turning the main switch on.... Replace with new ones if necessary.. Special attention should be paid to any forgotten connector.. Toner may cause sparks when exposed directly to fire in a furnace.... ............................... trapped wire and missing screws......................... other than the specified refiner.......... have been refitted correctly........... .. Miscellaneous WARNING • Never attempt to heat the drum or expose it to any organic solvents such as alcohol................................................. • Should smoke be seen coming from the copier.. • Check that all the caution labels that should be present on the machine according to the instruction handbook are clean and not peeling.............. · Use only a small amount of solvent at a time........................ it may generate toxic gas.................. etc.. • Handle greases and solvents with care by following the instructions below: ............ • Never dispose of toner or toner bottles in fire........ · Always wash hands afterwards............................. .......... ............................. remove the power plug from the wall outlet immediately...........• After maintenance............... 3...... being careful not to spill............. Wipe spills off completely.............................. ..... screws... always check that all the parts................ · Ventilate the room well while using grease or solvents................ ................... 3-3-50 3-3-6 Developing section (metric specification only) ......... 1-2-2 Developer and toner ........................................................................................................................ 3-3-59 3-3-9 Fixing section ......................................................................... 240 V/50 Hz specifications only) ........................... 3-1-11 3-1-4 Installing the flicker resistor (optional................ 3-3-55 3-3-8 Cleaning section (metric specification only) ............................. 3-2-1 3-3 Assembly and Disassembly 3-3-1 Precautions for assembly and disassembly ........................................................................................................................................................................................................... 2-3 Operation of the PCB 2-3-1 Power source PCB ........................ 1-3-3 Drive system ..................................... 2-3-2 Main PCB ................................................. 3-3-2 3-3-3 Main charging section ...... 1-1-1 1-2-1 1-2-1 1-3-1 1-3-3 1-3-4 1-3-5 II ELECTRICAL SECTION 2-1 Electrical Parts Layout 2-1-1 Electrical parts layout ................. 3-3-13 3-3-4 Exposure section .......... 120 V specifications only) ................................................................................ 1-2 Handling Precautions 1-2-1 Drum ......................................................................................................................................................................................................................... 3-3-62 .................................................... 2-2 Detection of Paper Misfeeds 2-2-1 Paper misfeed detection .... 3-1-1 3-1-2 Setting initial copy modes ............................................................... 3-1-13 3-2 Simulation 3-2-1 Simulations ....................... 2-3-3 AVR PCB ............. 3-3-16 3-3-5 Drum section (metric specification only) ............................ 1-3-2 Machine cross section ................................................................. 3-3-53 3-3-7 Transfer section ........ 2-2-2 Paper misfeed detection conditions ............................................................................................................................................................. 2-1-1 2-2-1 2-2-2 2-3-1 2-3-2 2-3-3 2-3-4 III SET UP AND ADJUSTMENT SECTION 3-1 Installation 3-1-1 Unpacking and installation .............................................................................................................................. 1-3-4 Mechanical construction .................................... 3-1-10 3-1-3 Installing the dehumidifier heater (optional...........................................................................195-1 195 CONTENTS I THEORY AND CONSTRUCTION SECTION 1-1 Specifications 1-1-1 Specifications ................................................... 1-3 Mechanical Construction 1-3-1 Part names and their functions ....................................................................................................................................................................................................... 3-3-1 3-3-2 Paper feed section ................................ 2-3-4 Operation unit PCB ..................................................... ............................................................................................................................................................................................................................. 3-7-5 Operation unit PCB ............................................................... 3-7-3 Power source PCB ........ 3-5-1 3-6 Troubleshooting 3-6-1 Image formation problems ............................................................ 2 ....... 3-7-9 .......................................................................................... 3-7-4 AVR PCB ......................................................................................... 3-6-1 3-6-2 Paper misfeed ............................................................................................................... 3 .......... 3-4-1 3-4-2 Adjustment-free variable resistors (VR) .. 3-6-17 3-6-4 Electrical problems ............................................................................................................................................................................................................................ 3-7-1 Timing chart No................ 3-6-31 3-7 Appendixes Timing chart No..................................... 3-4-3 3-5 Self-diagnostics 3-5-1 Self diagnostic function ............................. 3-7-6 Main PCB ............................................... 3-6-25 3-6-5 Mechanical problems ........................................... 3-7-2 Timing chart No............ 3-7-7 Connection diagram ............... 1 ....................................................... 3-7-8 Wiring diagram ..................................................................................................................... 3-6-15 3-6-3 PCB terminal voltages ........................................................195-1 3-4 PCB Initial Setting 3-4-1 Replacing the main PCB ............................ THEORY AND CONSTRUCTION SECTION DC-1460 S/M (MCA) I Theory and Construction Section I . ............................................. 1-1-1 .......................195 1-1 Specifications 1-1-1 Specifications ................. ..... 75 g/m 2 (inch) for drawer feed 60 ... Curvature separation 1-1-1 .. 1% increments Fixed ratios: Metric 1:1 6 1.....2 Light source .................................... ferrite carrier and N27 T black toner Toner density control: toner sensor Toner replenishing: automatic from a toner cartridge Transfer system ..... 230 W Developing system ...... manual exposure) Warm-up time ...... 1:0.......... Slit exposure Lens . letterhead and colored paper Note: Use the bypass for special paper.. 70 ............. Dry... Dry................ Maximum: Folio/81/ 2" × 14" Minimum: A6R/51/ 2" × 81/ 2" Magnification ratios ....................................141%.......................... At 100% magnification: A4R/8 1/ 2" × 11": 14 copies/min.....99 copies Photoconductor .....................8 s or less (A4R/8 1/ 2" × 11"... 75 g/m 2 (inch) for bypass feed Special paper: OHP film...700 Inch 1:1 6 1...... Fixed-focal lens.......... Desktop Copying system ............195 1-1-1 Specifications Type ........410............. 1 ............. 30 s or less (room temperature 20° C/68° F................ magnetic brush Developer: 2-component.... F: 7......... 1:1.................. Copying sizes .. A5R/5 1/ 2" × 8 1/ 2": 14 copies/min..... books and 3-dimensional objects Maximum size: Folio/81/2" × 14" Original feed system . Halogen lamp.......... 5.............0%.. Folio/81/2" × 14": 12 copies/min........................... +4..... 1:1.. Plain paper: 80 g/m2 (metric)...................... OPC (drum diameter 30 mm) Charging system ...............290........ Single positive corona charging V (drum potential: 820 V +100 –50 V DC) Exposure system ...0%.120 g/m2 (metric)..... First copy time .... f: 190 mm............ Fixed Copy paper ........... Automatic feed from the paper drawer Capacity: 250 sheets of 80 g/m 2 (metric) or 75 g/m2 (inch) Manual feed from the bypass section 1 sheet at a time Multiple copying ..................... 65%RH) Paper feed system .. Sheets........ indirect electrostatic system Originals . 1:0........................ Single positive corona charging........8 kV DC (reference) Separation system ..780 Copy speeds ...... 100% magnification.......... 240 V AC.....................270 s.................................. Copy tray 1-1-2 . 120 V AC...45 min...5 lbs Floor requirements ........195 Fixing system ............ 515 (W) × 465 (D) mm 201/ 4" (W) × 185/ 16" (D) Accessories ................4 A (average) Rated power consumption ..... Heat roller Heat source: halogen heater (910 W with 120 V supply...... 1361 W (220 ........ 10. Exposure by cleaning lamp Cleaning system ... in intervals of 15 min...........) ( 7 ) Exposure adjustment ( 8 ) Auto exposure ( 9 ) Photo mode (10) Manual magnification selection (11) Fixed magnification (12) User exposure control (13) Paper empty detection (14) Toner empty detection (15) Paper jam detection (16) Copy number setting (17) Total counter Power source ........... 60 Hz.... max...................240 min... Approx...2 A 220 ...... 515 (W) × 465 (D) × 320 (H) mm 201/ 4" (W) × 185/ 16" (D) × 12 5/ 8" (H) Weight ......... in intervals of 30 s) ( 4 ) Auto start ( 5 ) Auto shutoff (15 ..240 V) 1195 W (120 V) Dimensions ......) ( 6 ) Auto preheat/energy saving (5 ............. 1040 W with 240 V supply) Control temperature: 175° C/347°F (at normal ambient temperature) Abnormally high temperature protection devices: 135° C/275° F and 140°C/284°F thermostats Fixing pressure: 94 N Charge erasing system ........... 22 kg/48... Cleaning blade Functions .... in intervals of 5 min... 2.................. ( 1 ) Self-diagnostics ( 2 ) Simulation ( 3 ) Auto clear (30 .................... 50/60 Hz. 1-2-1 ..................................................... 1-2-1 1-2-2 Developer and toner ...................................195 1-2 Handling Precautions 1-2-1 Drum .................................................................................... • Do not touch the drum surface with any object. • When removing the drum unit. clean it. dark place. • Keep the drum at an ambient temperature between –20° C/–4° F and 40°C/104°F and at a relative humidity not higher than 85% RH. high humidity and temperature. never expose the drum surface to strong direct light. Avoid direct light. Avoid abrupt changes in temperature and humidity. • Avoid exposure to any substance which is harmful to or may affect the quality of the drum. • If the machine is left open for more than 5 minutes for maintenance. Should it be touched by hands or stained with oil. 78369020). remove the drum and store it in the drum storage bag (Part No.195 1-2-1 Drum Note the following when handling or storing the drum. 1-2-2 Developer and toner Store the developer and toner in a cool. 1-2-1 . . 1-3-18 ( 5 ) Transfer and separation section ............................ 1-3-12 ( 4 ) Developing section .................... 1-3-4 Mechanical construction ................................................ 1-3-29 ( 7 ) Charge erasing section ......... 1-3-5 (1-1) Paper feed from the paper drawer ............................................................................... 1-3-5 ( 1 ) Paper feed section ..................................... 1-3-7 (1-2) Paper feed from the bypass slot ........................................... 1-3-30 ( 8 ) Fixing and eject section ............................................................................................ 1-3-26 ( 6 ) Cleaning section ... 1-3-32 ...............................195 1-3 Mechanical Construction 1-3-1 1-3-2 1-3-3 1-3-4 Part names and their functions .................................... 1-3-1 Machine cross section ................ 1-3-9 ( 3 ) Exposure section ........................................................................................................................................ 1-3-3 Drive system ...................... 1-3-8 ( 2 ) Main charging section ................................................................................................................................................................................................................................................................ E A E A A E A E A E 195 1-3-1 Part names and their functions 3 1 2 ( ) & * 0 ! @ ⁄ ( # $ ^ % 4 5 6 8 7 9 Figure 1-3-1 1 2 3 4 5 6 7 8 Original holder Contact glass Original size indicator Operation panel Drum unit Developing unit Developing unit release lever Toner cartridge 9 0 ! @ # $ % ^ Front cover Paper drawer Main switch Grips Width guide Length guide Copy tray Auxiliary tray & * ( ) ⁄ Bypass section Insertion guides Release unit Release unit button Eject section cover 1-3-1 E A E A A E 195 S/M(1-3-1) E A A E . E A E A E A A E A E 195 Metric !@ $ ^ & % 6 2 1 2 3 4 5 6 7 8 9 0 ! @ # $ % ^ & 0 # 9 8 7 5 4 3 1 Print key Copy start indicator Stop/clear key Quantity/zoom-up key Quantity/zoom-down key Copy quantity/magnification display Zoom input/enter key Zoom copy indicator Copy size key Fixed magnification indicators Add toner indicator Maintenance indicator (metric) Replace unit indicator (inch) Exposure adjustment keys Exposure indicators Exposure mode key Auto exposure indicator Photo original indicator Inch ! @ $ ^ & % 6 2 0 # 9 8 7 5 4 3 1 Figure 1-3-2 Operation panel 1-3-2 E A E A E A 195 S/M(1-3-1) E A A E . 195 1-3-2 Machine cross section 6 7 3 8 4 5 1 2 Figure 1-3-3 Machine cross section 1 2 3 4 Paper feed section (page 1-3-5) Main charging section (page 1-3-9) Exposure section (page 1-3-12) Developing section (page 1-3-18) 5 Transfer and separation section (page 1-3-26) 6 Cleaning section (page 1-3-29) 7 Charge erasing section (page 1-3-30) 8 Fixing and eject section (page 1-3-32) 1-3-3 195 1-3-3 Drive system 2 2 3 2 1 6 2 7 2 5 4 ¤ fi „ · ° fl ›‹ Œ ‚ ‡ ) ⁄ % ( *& ^ 2 8 9 0 ! @ # $ As viewed from machine rear Figure 1-3-4 Drive system 1 Scanner wire 2 Scanner wire pulley 3 Mirror motor gear 4 Scanner drive gear B 5 Scanner wire drum B 6 Scanner motor gear 7 Scanner drive gear 64 8 Scanner wire drum A 9 Eject roller gear 0 Idle gear 20 ! Fixing gear 32 @ Gear 27/38 # Gear 41/56 $ Gear 30/35 % Gear 28 ^ Gear 33 & * ( ) ⁄ ¤ ‹ › fi fl ‡ ° · ‚ Œ „ Feed gear 16 Gear 35 Paper feed clutch gear Registration gear 14 Gear 20/43 Drive motor gear Gear 26/54 Drum drive gear Gear 38/43 Developing drive gear Gear 30 Toner cartridge drive gear Toner cartridge drive gear Toner cartridge idle gear Toner cartridge idle gear Toner feed motor gear 1-3-4 195 1-3-4 Mechanical construction ( 1 ) Paper feed section 0 ! % 9 6 @ $ 8 7 # 4 53 2 1 Figure 1-3-5 Paper feed section 1 2 3 4 5 6 7 8 Drawer bottom plate Drawer spring Front and rear drawer claws Paper feed pulleys A and B Feed roller guide Feed roller Bypass guide Feed pulley 9 0 ! @ # $ % Right registration roller Left registration roller Upper pre-transfer guide Pre-transfer guide Paper feed clutch (PFCL) Registration switch (RSW) Registration clutch (RCL) 1-3-5 195 The paper feed section consists of the primary feed and secondary feed subsections. Primary feed conveys paper from the paper drawer or the bypass slot to the right and left registration rollers, at which point secondary paper feed takes place and the paper travels to the transfer section in sync with the exposure timing. CN7-7 RCL CN7-6 CN7-5 RSW PFCL MPCB Figure 1-3-6 Paper feed section block diagram 1-3-6 195 (1-1) Paper feed from the paper drawer The paper drawer consists of the drawer bottom plate, drawer springs and other components and can hold up to 250 sheets of copy paper. Paper is fed out of the drawer by the rotation of paper feed pulleys A and B. Print key RSW HPSW SM 200 ms PFCL 600 ms RCL 246 P *1 330 ms AB C D Auto exposure mode, A4R/81/2" × 14" copy paper, magnification ratio 100% *1 Varies depending on the setting by simulation 58. Timing chart 1-3-1 Paper feed from the paper drawer A 200 ms after the print key has been pressed, the paper feed clutch (PFCL) turns on for 600 ms, rotating paper feed pulleys A and B to perform primary feed. Then the paper is fed to the right and left registration rollers by the rotation of the feed roller. B The leading edge of the paper turns the registration switch (RSW) on. C 246 pulses after the scanner has started scanning, the registration clutch (RCL) turns on and the right registration roller conveys the paper to start secondary feed. D 330 ms after the trailing edge of the paper has turned the registration switch (RSW) off, the registration clutch (RCL) turns off to complete secondary paper feed. 1-3-7 195 (1-2) Paper feed from the bypass slot The bypass slot can hold one sheet of paper at one time. Copying starts when the paper turns the registration switch (RSW) on and the paper is conveyed to the secondary paper feed section by the feed roller. Copying start RSW HPSW FWD REV 330 ms RCL 200 ms DM 246 P *1 SM A B C Manual exposure mode, A4R/81/2" × 14" copy paper, magnification ratio 70% *1 Varies depending on the setting by simulation 58. Timing chart 1-3-2 Paper feed from the bypass slot A 200 ms after the leading edge of the paper has turned the registration switch (RSW) on, the drive motor (DM) turns on and the feed roller feeds the paper to start primary paper feed where the paper is fed to the right and left registration rollers. B 246 pulses after the scanner motor (SM) has started rotating forward, the registration clutch (RCL) turns on and the right registration roller conveys the paper to start secondary paper feed. C 330 ms after the trailing edge of the paper has turned the registration switch (RSW) off, the registration clutch (RCL) turns off to complete secondary paper feed. 1-3-8 195 ( 2 ) Main charging section The main charging section consists of the drum and main charger. The drum is electrically charged uniformly by means of a grid to form a latent image on the surface. Tungsten wire Main charger Main charger grid Figure 1-3-7 Main charging section 1-3-9 195 1 2 3 4 5 Figure 1-3-8 Main charger 1 2 3 4 5 Main charger rear lid Charger spring Charger wire Main charger front lid Charger wire retainer pin CN8-7 CN8-5 CN8-4 24 V DC DB REM HV REM CN1-1 CN1-3 CN1-4 MC CN8-3 CN8-2 PHOTO REM HV ALM CN1-5 CN1-6 Grid Drum MPCB HVTPCB Figure 1-3-9 Main charging section block diagram 1-3-10 195 Print key SM 200 ms DM 50 ms HV REM FWD REV 384 ms AB C Manual exposure mode. B 50 ms after the drive motor (DM) has started to rotate. A4R/81/2" × 14" copy paper. main charging (HV REM) starts. the drive motor (DM) starts to rotate. paper feed from the paper drawer Timing chart 1-3-3 Main charging A 200 ms after the print key has been pressed. 1-3-11 . C 384 ms after the scanner motor (SM) has stopped rotating forward. main charging (HV REM) ends. 195 ( 3 ) Exposure section & 87@ # 9 3 2! $ 0 41 5 6 ) ^( % * Figure 1-3-10 Exposure section 1 2 3 4 5 6 7 8 Mirror 1 Mirror 2 Mirror 3 Mirror 4 Mirror 5 Mirror 6 Halogen lamp (HL) Optical section thermostat (TH3) 9 Lens 0 Light source unit 1 ! @ # $ % ^ & * ( ) Light source unit 2 Main reflector Auxiliary reflector Scanner motor (SM) Optical section fan motor (OPFM) AE sensor (AES) Home position switch (HPSW) Lens home position switch (LHPSW) Mirror home position switch (MHPSW) Dust filter 1-3-12 . the optical section thermostat (TH3) shuts off the supply to the halogen lamp. A cooling fan is installed to exhaust heat generated by the halogen lamp. and a halogen lamp (HL) as the light source.195 This copier employs a slit exposure system with a fixed original table. the scanning speeds of the two light source units and the positions of the lens and mirrors 2 and 3 are changed. altering the distance between the original and the drum. Original AVRPCB HPSW AES HL TH3 CN2-1 CN2-3 SM LM MM LHP SW MHP SW CN4-5 CN7-10 HL CONT CN11-1 – CN11-5 CN11-6 – CN11-10 CN9-1 – CN9-5 CN10-2 CN12-5 CN12-9 MPCB Figure 1-3-11 Exposure section block diagram CN12-3 1-3-13 . If an abnormally high temperature is detected around light source unit 1. The optical section consists of light source units 1 and 2. Each unit travels from one side of the machine to the other along scanner rails at machine front and rear. When an enlargement or a reduction ratio is selected. Light source unit 1 carries the halogen lamp and the main and auxiliary reflectors. the scanner motor (SM) reverses to return the scanner to the home position. the scanner motor (SM) pauses for 100 ms. A4R/81/2" × 14" original Timing chart 1-3-4 Scanner travel A 200 ms after the print key has been pressed. C After rotating forward for 910 pulses. It then reverses to return the scanner to the home position. G 5 pulses after the home position switch (HPSW) has been turned on. At the same time. the halogen lamp (HL) turns off. the scanner motor (SM) turns off and the scanner stops. the scanner motor (SM) rotates forward for prescan. the halogen lamp (HL) lights at the intensity for prescan.195 Prescan start Print key 200 ms HPSW 5P 910 P SM 350 ms FWD 100 ms REV 2358 P 55 ms FWD 65 ms REV 5P HL A B C D E Scanner return start Scan start F G Auto exposure mode. E 55 ms after the scanner motor (SM) has turned off. F After rotating forward for 2358 pulses. B 350 ms after the halogen lamp (HL) has turned on. D 5 pulses after the home position switch (HPSW) has been turned on. 1-3-14 . the scanner motor (SM) turns off and the scanner stops. 65 ms later. it rotates forward again for scanning. the scanner motor (SM) pauses. 1. The number of exposure steps depends on the setting in simulation 96-1: 7 or 13 steps when set to “NORMAL MODE” and 19 or 25 steps when set to “SPECIAL AREA”. 4 or 7 and Exp. The exposure control between Exp. –6 and Exp. 1 is 2 per step. The exposure scale is wider for SPECIAL AREA than for NORMAL MODE.195 Exposure control for manual exposure and photo modes The halogen lamp light intensity for manual exposure and photo modes is calculated from the data obtained by running simulation 24. Light intensity value 0 –6 –5 –4 –3 –2 –1 1 2 3 4 5 6 7 +1 +2 +3 +4 +5 +6 19 steps –6 –5 –4 –3 –2 –1 1 2 3 4 5 6 7 8 9 10 11 12 13 +1 +2 +3 +4 +5 +6 25 steps Exposure scale (Exp. +2 set in simulation 24. 1-3-15 . •Exposure control for photo mode The exposure for photo mode is controlled by setting the drum potential below that for manual exposure mode. +6 is based on the gradient of the light intensity value between Exp. The gradient of the light intensity value between Exp.) : Exposure width for NORMAL MODE (7 or 13 steps) Figure 1-3-12 Exposure gradient setting for SPECIAL AREA •Exposure control for manual exposure mode The gradient is determined from the halogen lamp intensity values for Exp. Exp. +2. 4 or 7 and Exp. +2 and Exp. +2 Manual-mode Exp. the halogen lamp lights at the intensity set by simulation 28-1 to perform prescan. 4 or 7 when the AE sensor read-in value is the NTC level and at the intensity for manual-mode Exp. the halogen lamp voltage is kept at a constant level so that the halogen lamp lights at the intensity for manual-mode Exp. 4 or 7. The exposure level to copy that particular original is determined by using the value read in by the AE sensor.195 Exposure control for auto exposure mode In auto exposure mode. +2. the halogen lamp voltage is kept at a constant level so that the halogen lamp lights at the intensity for manual-mode Exp. +2 when the read-in value is the NPTC level when setting auto exposure values in simulation 28-2 and -3. For read-in values below the NPTC level of simulation 28-3. 4 or 7 0 NPTC NTC AE sensor read-in value Figure 1-3-14 Exposure control for auto exposure mode The halogen lamp voltage is controlled so that the lamp lights at the intensity for manual-mode Exp. 1-3-16 . AE detection (prescan) Exposure Scanner movement 148 mm Original Original leading edge 100 mm Detection width Original leading edge Figure 1-3-13 AE sensor detection width Halogen lamp voltage Manual-mode Exp. For read-in values above the NTC level of simulation 28-2. The gradients vary depending on the setting values in simulation 29. 1-3-17 .1. Light intensity correction value Sim. The prescan light intensity for enlargement and reduction copying is increased by 0. 29-2 (70%) 0 70 100 141 Magnification ratio (%) Figure 1-3-15 Correction of light intensity for enlargement and reduction modes The correction values set by simulation 29 for reduction (70%) and enlargement (141%) copying are linked by a straight line through the value for 100% magnification. for 141%.1 as the magnification ratio changes by 1%. For copying at 70% the prescan light intensity is the 100% level plus 3. the 100% level plus 4.195 Light intensity correction for enlargement and reduction modes The halogen lamp light intensity for enlargement and reduction modes is determined by the value for copying at 100% magnification and the correction values set by simulation 29. and the light intensity is corrected for individual magnification ratios according to the gradients. 29-1 (141%) Sim. Toner in the toner cartridge is mixed with residual toner recovered from the cleaning section. doctor blade and the developing spirals that agitate the developer.195 ( 4 ) Developing section The developing section consists of the developing unit and toner cartridge. Toner cartridge Developing unit Figure 1-3-16 Developing section The developing unit consists of the developing roller where a magnetic brush is formed. and the mixture is conveyed to the developing unit. 1-3-18 . 195 Cleaning spiral Toner cartridge spiral Toner cartridge paddle Toner cartridge Developing unit Toner flow Toner recycling spiral Figure 1-3-17 Toner recycling 1-3-19 . 025 mm Figure 1-3-18 Forming the magnetic brush 1 Developing unit housing 2 Developing roller 3 Toner sensor (TNS) 4 Doctor blade 5 Right developing spiral 6 Left developing spiral 1-3-20 . Rotation of the sleeve roller around the magnet roller entrains developer.525 ± 0.195 Formation of the magnetic brush The developing roller consists of a magnet roller with five poles and a sleeve roller. Magnetic poles on the magnet roller S1 A 4 65 3 84˚ 75˚ N2 N1 67˚ 80˚ 2 1 N3 S2 N1: 850 × 10–4 ± 50 × 10 –4 T N2: 500 × 10–4 ± 50 × 10 –4 T N3: 450 × 10–4 ± 50 × 10 –4 T S1: 880 × 10 –4 ± 50 × 10–4 T S2: 900 × 10 –4 ± 50 × 10–4 T A: distance between the doctor blade and developing roller: 0. The developing bias voltage generated by the high-voltage transformer PCB (HVTPCB) is applied to the developing roller to provide image contrast. which in turn forms a magnetic brush at pole N1 on the magnet roller. the developing result is affected by the positions of the poles on the magnet roller and the position of the doctor blade. The height of the magnetic brush is regulated by the doctor blade. 195 CN2-1 CN8-5 DB REM CN2-2 CN1-3 HVTPCB Developing bias TFM TNS CN6-7 CN6-8 MPCB TNS TNS CONT Figure 1-3-19 Developing section block diagram Toner density is detected by the toner sensor (TNS). 1-3-21 . When toner is added and the ratio of toner to carrier returns to normal. As more toner is used. When the ratio drops below the specified value. the increase in toner sensor output voltage triggers toner replenishing. The sensor section of the toner sensor detects the ratio of toner to carrier in the developer near it and converts it into a voltage. the ratio of toner to carrier decreases. increasing the toner sensor output voltage. the toner sensor output voltage drops to the point where toner replenishing stops. the add toner indicator lights.00) “AP” blinks on the copy quantity/magnification display. 1-3-22 . E If the toner sensor output voltage does not fall to the AP reset level within 2 minutes after it has started to fall below the AP detection level.2 s on/1. The toner sensor output is also used to detect an empty toner cartridge.). 2 min. the toner feed motor intermittent feed (0. “AP” blinks on the copy quantity/magnification display and the toner feed motor forced feed (continuously on) operation starts.0 s off) operation is carried out to feed the toner. Forced toner feed Copy operation A B C D Forced feed (continuously on) Intermittent feed (0.21) AP reset level (3. the intermittent feed operation is stopped.05) Toner feed motor off level (2. even though the toner intermittent feed operation is continued. D If the toner sensor output voltage falls to the AP reset level within the toner feed motor forced feed operation time (2 minutes max.75) Toner feed motor on level (2.00) Toner empty end level (2. the toner sensor output voltage rises above the AP detection level. Toner sensor output voltage (V) AP detection level (3. using as the reference the toner sensor output based on the toner sensor control voltage set when simulation 60 was executed while the developer was first supplied. C When the toner in the toner cartridge runs low and.2 s on/1. E Max. the copier returns to the ready state and continues the intermittent feed operation.0 s off) Figure 1-3-20 Toner density control A When the toner sensor output voltage exceeds the toner feed motor on level. B When the toner is fed and the toner sensor output voltage falls below the toner feed motor off level.195-1 Toner density control Toner density is controlled by switching the toner feed motor on and off. 195 Toner sensor output voltage (V) AP detection level (3. Further intermittent feed operation is carried out for up to 2 minutes or until the toner sensor output voltage reaches the toner feed motor off level. Toner empty end level (2.75) Toner feed motor on level (2. During forced feed. Copy operation F Figure 1-3-21 G F After the toner cartridge is replaced. “AP” on the copy quantity/magnification display goes out and the copier enters the ready state. “AP” blinks and the forced feed operation (continuously on) is started by turning the safety switch off and on. the add toner indicator stays lit. 1-3-23 .) until the toner feed motor off level is reached. the toner is fed and when the toner sensor output voltage reaches the toner empty end level.05) Toner feed motor off level (2. 3'19" Forced toner feed The add toner indicator turns off and intermittent feed continues(2 minutes max. G If the toner sensor output voltage does not reach the toner empty end level within the forced feed operation time.00) Toner cartridge replacement Max.21) If forced feed does not lower the level. the add toner indicator stays lit even after the end of the forced feed operation time. The toner sensor control voltage correction value varies depending on the developing unit drive time (the total drive motor on time since the main switch was last turned on).7 –0.398 and 35. The image density is subject to humidity changes and the developing unit drive time.6 –0.9 –1 1.195-1 Controlling the toner sensor output voltage When initializing the toner control level in simulation 60.350 min. the toner sensor output voltage (TNS) is corrected by the toner sensor control voltage (TNS CONT).700 min.849 g/m3. 5 More than 1400 min.5 V when the absolute humidity is 35.397 A 1 2 B Developing unit drive time 1 0 . 3 700 .849 Absolute humidity (g/m3) Figure 1-3-22 Correction based on the absolute humidity A The toner sensor control voltage correction value is kept constant when the absolute humidity is between 1.4 –0.8 –0. 3 4 5 11. 4 1050 .2 –0. To maintain the image density constant. The rate of change is constant and it varies depending on the developing unit drive time (the total drive motor on time since the main switch was last turned on).849 g/m3 when the absolute humidity is between 11. Toner sensor control voltage correction –0. the toner sensor control voltage (TNS CONT) is set so that the toner sensor output voltage (TNS) is 1. 1-3-24 .5 –0.3 –0.398 35.398 g/m3 .60 V DC.1050 min.1 value (V) –0. 2 350 . B The toner sensor control voltage correction value changes so that it is -0.397 and 11.1400 min. MPCB HUMPCB ETTH 1 2 Humidity sensing element 3 HUMSENS 4 5 HUMSENS GND 5 V DC CN4-3 CN4-2 CN4-1 ETTH GND CN4-5 CN4-4 Figure 1-3-23 Absolute humidity computation block diagram 45 40 35 Absolute humidity (g/m3) 30 25 20 15 10 5 0 10 50 40 60 100 20 15 59 20 68 25 77 30 86 35 (˚C) 95 (˚F) Temperature (˚C/˚F) Figure 1-3-24 Absolute humidity vs.195 [Computing the absolute humidity] The humidity sensor (HUMSENS) and external temperature thermistor (ETTH) are located on the humidity sensor PCB (HUMPCB). The humidity sensor (HUMSENS) converts the relative humidity detected by the humidity sensing element into a voltage and sends it to the main PCB (MPCB). The main PCB computes the absolute humidity based on this HUMSENS signal and the temperature (ETTH signal) detected by the external temperature thermistor. relative humidity 1-3-25 Relative humidity (%RH) 80 . a high voltage generated by the high-voltage transformer PCB (HVTPCB) is applied across both ends of the tungsten wire for transfer charging and the toner image is transferred from the drum surface onto the paper.195 ( 5 ) Transfer and separation section Post-transfer guide Tungsten wire Transfer charger Figure 1-3-25 Transfer and separation section The transfer and separation section consists of the transfer charger. 1-3-26 . In the transfer charger. paper is separated from the drum by curvature separation under its own weight and by the post-transfer guide. After transfer. 195 8 4 6 7 2 3 5 9 1 Figure 1-3-26 Transfer charger 1 2 3 4 5 Front transfer housing Rear transfer housing Transfer front lid Transfer rear lid Transfer charger shield 6 Pre-transfer guide 7 Charger wire 8 Charger spring 9 Charger wire retainer pin CN8-7 CN8-4 CN8-2 24 V DC HV REM HV ALM CN1-1 Drum CN1-4 CN1-6 HV HVTPCB MPCB Figure 1-3-27 Transfer and separation section block diagram 1-3-27 . transfer charging (HV REM) starts.195 Print key SM 200 ms DM 50 ms HV REM FWD REV 384 ms AB C Manual exposure mode. paper feed from the paper drawer Timing chart 1-3-5 Transfer and separation A 200 ms after the print key has been pressed. B 50 ms after the drive motor (DM) has started to rotate. transfer charging (HV REM) ends. 1-3-28 . C 384 ms after the scanner motor (SM) has stopped rotating forward. A4R/81/2" × 14" copy paper. the drive motor (DM) starts to rotate. 195 ( 6 ) Cleaning section The cleaning section consists of the cleaning blade. which removes residual toner from the drum surface after transfer. 4 3 2 1 Figure 1-3-28 Cleaning section 1 Drum 2 Cleaning blade 3 Lower cleaning blade 4 Cleaning spiral 1-3-29 . and the cleaning spiral that carries the residual toner back to the toner cartridge. DIG 5. All the LEDs light to create leading edge and trailing edge blank cut margins. 6 CN2-14 CN1-16– CN1-12 CN1-4. 6 BL CN7-4 MPCB CL REM CN4-11 CN9-1 CN9-2 24 V DC CL CL AVRPCB Drum Figure 1-3-30 Charge erasing section block diagram 1-3-30 . The cleaning lamp (CL) removes residual charge from the drum surface. OPCB CN2-1– SEG a–e CN2-5 CN2-13. CN2-7 BL SEG a–e BL DIG 5. removing charge from the sections of the copy where no image is to be formed. During exposure.195 ( 7 ) Charge erasing section Cleaning lamp (CL) Blank lamps (BL) Figure 1-3-29 Charge erasing section The charge erasing section consists of the blank lamps (BL) and the cleaning lamp (CL). CN1-3 CN2-1– CN2-5 CN2-6. the required number of the 28 blank lamps on both sides are lit depending on the paper size and the magnification ratio. The blank lamps (BL) are 28 LEDs. C 190 ms after the trailing edge of the paper has turned the registration switch (RSW) off. *2 Varies depending on the setting by simulation 59. the cleaning lamp (CL) and all the blank lamps (BL) turn on. Timing chart 1-3-6 Charge erasing A 200 ms after the registration switch (RSW) has been turned on by the paper inserted to the bypass. the drive motor (DM). 1-3-31 . manual exposure mode. E 100 ms after the paper has been ejected and the eject switch (ESW) has been turned off. the required number of blank lamps (BL) light depending on the paper size and the magnification ratio.195 Scan start RSW ESW FWD REV SM HV REM 100 ms DM 200 ms CL 285 ms BL All on 127 P *1 Side erasure 190 ms *2 All on A B C D E Bypass feed. magnification ratio 70% *1 Varies depending on the magnification ratio and the setting by simulation 54. all the blank lamps (BL) turn on. B 127 pulses after the scanner has started scanning. the blank lamps (BL) turn off. the drive motor (DM) and the cleaning lamp (CL) turn off at the same time. A4R/81/2" × 14" copy paper. D 285 ms after the main charging (HV REM) has completed. removing unnecessary charge in the non-image forming area. 195-1 ( 8 ) Fixing and eject section ^ ! & 0 8 5 9 4 3 Figure 1-3-31 Fixing and eject section 1 Fixing unit cover 2 Fixing unit upper housing 3 Fixing unit lower housing 4 Fixing entrance guide 5 Eject guide 6 Heat roller 7 Press roller 8 Heat roller separation claws 9 Fixing pressure springs 0 ! @ # $ % ^ & Eject pulley Eject roller Fixing heater (H) Fixing unit thermostat 1 (TH1) Fixing unit thermostat 2 (TH2) Fixing unit thermistor (FTH) Eject switch (ESW) Fixing blade 1 # $ % 2 @ 7 6 1-3-32 . it passes through the gap between the press roller and heat roller. When the fixing process is completed. When the paper reaches the fixing section after the transfer process. the paper is separated from the heat and press rollers by the heat roller separation claws and is ejected out of the copier by the rotation of the eject pulley and eject roller. which is heated by the fixing heater (H). AVRPCB CN13-1 CN13-2 TB1 TB2 H COM Heat roller FTH 5 V DC H LIVE TH2 TH1 H CN4-4 CN4-7 H REM CN7-11 CN7-8 FTH MPCB Figure 1-3-32 Fixing section block diagram FTH 1-3-33 . Pressure is applied by the fixing pressure springs so that toner on the paper is melted and fused onto the paper.195 The fixing and eject section consists of the parts shown in Figure 1-3-31. 195 Heating the heat roller and detecting temperature 3 5 4 1 2 Figure 1-3-33 Heating the heat roller and detecting temperature 1 Heat roller 2 Fixing heater (H) 3 Fixing unit thermostat 1 (TH1) 4 Fixing unit thermostat 2 (TH2) 5 Fixing unit thermistor (FTH) The heat roller is heated by the fixing heater (H) inside it. in each case shutting the power to the fixing heater off. 1-3-34 . If the fixing section becomes abnormally hot. either the fixing unit thermistor detects it or fixing unit thermostat 1 or 2 (TH1 or TH2) operates. its surface temperature is detected by the fixing unit thermistor (FTH) and is regulated by the fixing heater turning on and off. The fixing heater (H) is then turned on and off as required to keep the fixing temperature at 175 °C/347°F. cleaning lamp (CL) and blank lamps (BL) turn on to start primary stabilization. C When the fixing temperature reaches 185 °C/365°F. B 200 ms after the fixing temperature has reached 80°C/176°F. 44 s if the temperature detected by the fixing unit thermistor is below 10°C/50° F or the external temperature is below 15°C/59°F when the main switch (MSW) is turned on. The fixing fan motor (FFM) rotates at full speed for 1 s and then at half speed. secondary stabilization is achieved. the fixing temperature falls to 175° C/347°F and the copier enters the standby state. D After secondary stabilization. 5 s if the temperature detected by the fixing unit thermistor is 80°C/176°F or above when the main switch is turned on. copying is enabled and the copy start indicator lights if the time from the main switch (MSW) being turned on has reached the following: 29 s if the temperature detected by the fixing unit thermistor is 10°C/50°F or above and the external temperature is 15°C/59°F or above when the main switch (MSW) is turned on.195 Fixing temperature control Secondary stabilization fixing temperature 185˚C/365˚F Primary stabilization fixing temperature 80˚C/176˚F Copying enabled Primary stabilization fixing temperature 175˚C/347˚F 10 s MSW H 200 ms DM CL BL 1s FFM Full speed Copy start indicator Half speed 29 s A B C DE F Timing chart 1-3-7 Fixing temperature control A When the main switch (MSW) is turned on the fixing heater (H) turns on to heat the heat roller. the drive motor (DM) turns off. F 10 s after the copy start indicator has lit. the drive motor (DM). E After copying has been enabled. The fixing heater (H) is then turned on and off as required to keep the fixing temperature at 185°C/365° F. 1-3-35 . When the temperature detected by the thermistor is 32°C/89. Paper separation Paper is separated in the fixing section by the separation claws as shown in Figure 1-334.195-1 • Correcting the fixing temperature control The fixing temperature is changed according to the temperature detected by the external temperature thermistor (ETTH) on the humidity sensor PCB (HUMPCB). When the temperature detected by the thermistor is below 32°C/89.6° F or above. the fixing temperature is 175° C/347° F during standby and 180° C/356° F during copying.6° F. Heat roller separation claws Heat roller Figure 1-3-34 Paper separation 1-3-36 . the fixing temperature is 175° C/347° F during standby and 185° C/365° F during copying. II ELECTRICAL SECTION DC-1460 S/M (MCA) II Electrical Section . ............. 2-1-1 .........195 2-1 Electrical Parts Layout 2-1-1 Electrical parts layout ................................................... .................. contains the safety switch and noise filter.. Performs main charging.. 2....... supplies AC to the AVR PCB. 4............... Controls the halogen lamp and fixing heater...... 5... Humidity sensor PCB (HUMPCB) . High-voltage transformer PCB (HVTPCB) ...195 2-1-1 Electrical parts layout 6 4 1 3 5 2 Machine front Machine inside Machine rear Figure 2-1-1 Layout of electrical parts: PCBs 1..... Controls the other PCBs and electrical components..................... 6... 3........... Power source PCB (PSPCB) .. Detects absolute humidity... Generates 24 V and 5 V DC... Main PCB (MPCB) ........... Operation unit PCB (OPCB) ................. generates developing bias and high voltage for transfer charging... Consists of operation keys and display LEDs..... AVR PCB (AVRPCB) ... 2-1-1 ........... .................... Mirror home position switch (MHPSW) . and resets paper jam detection. Controls the secondary paper feed start timing................ Lens home position switch (LHPSW) ......... 2-1-2 .......... Eject switch (ESW) .... Detects the lens in the home position. Turns the AC power on and off.... 7............... 12. 2....... 11......... 6. 10.............195 195-1 6 5 7 4 10 8 11 12 1 14 9 3 13 2 Machine front Machine inside Machine rear Figure 2-1-2 Layout of electrical parts: switches and sensors 1............ Detects the toner density in the developing section.. Detects the external humidity......... 4. AE sensor (AES) .................... 5......................... Registration switch (RSW) .......... Fixing unit thermistor (FTH) ..... Detects the presence or absence of the (TCDSW) toner cartridge.................. Main switch (MSW) . Detects the original density.... 14............ Humidity sensor (HUMSENS) ....... 8.............. Blows to differentiate between old and new developing units......... 9.. 220 V and 240 V specifications.... Toner sensor (TNS) .................. 3.. Detects the heat roller temperature... Developing unit fuse* (DEVF) . Breaks the safety circuit when the front cover or release unit is opened...... * Standard equipment only for 120 V. Safety switch (SSW) ........ 13.... External temperature thermistor (ETTH) ........... Home position switch (HPSW) ................ Detects the external temperature.... Detects mirrors 2 and 3 in the home positions............. Detects a paper jam in the fixing section........ Toner cartridge detection switch .. Detects the scanner in the home position.............. . Internal cooling fan motor (ICFM) ....... Performs secondary paper feed.................. Registration clutch (RCL) ......... 6...... 5.. 4............. Drives mirrors 2 and 3...... Drives the lens..... 2-1-3 ..... Paper feed clutch (PFCL) ......... Performs primary paper feed from the paper drawer....................... 9.................... Toner feed motor (TFM) ............. Cools the machine interior.. Drives the optical system........ 3............................... 10....... 7.... Replenishes toner............ Fixing unit fan motor (FFM) .... 8............................195 2 7 6 4 3 1 5 8 10 9 Machine front Machine inside Machine rear Figure 2-1-3 Layout of electrical parts: motors and clutches Drive motor (DM) ... Scanner motor (SM) ....... Cools the optical system........... Drives the machine.. 1............... Lens motor (LM) ............. 2.... Mirror motor (MM) ....... Optical section fan motor (OPFM) ....... Cools the fixing section.................... ............ Optical section thermostat (TH3) .................. Fixing heater (H) ... Displays the total number of copies produced................................... 6 4 2 3 8 9 Machine front Machine inside Machine rear Figure 2-1-4 Layout of electrical parts: other electrical parts 1... 9........................ Halogen lamp (HL) ......... Cleaning lamp (CL) .. 7.. Prevents overheating in the optical system......195 7 1 5........ Heats the heat roller...... Fixing unit thermostat 1 (TH1) ....... 6................... Blank lamps (BL) ....................................... Prevents overheating in the fixing section... 2............ Performs exposure. 3...................... Removes residual charge from the drum surface............... * Option available only for 120 V specifications.... 8.... Dehumidifies the machine interior.... Fixing unit thermostat 2 (TH2) ..... Total counter (TC) ... Prevents overheating in the fixing section...... 2-1-4 ........ Dehumidifying heater (DH)* ...... 4....... Remove charge from non-image forming areas of the drum surface.... 5...... ...............195 2-2 Detection of Paper Misfeeds 2-2-1 Paper misfeed detection .............................................................. 2-2-2 ........ 2-2-1 2-2-2 Paper misfeed detection conditions ................................. no paper present in the drawer) J01: paper jam in the fixing section J02: paper jam in the eject section J03: paper jam in the registration section Figure 2-2-1 Misfeed location indication ESW RCL RSW PFCL Figure 2-2-2 Misfeed detection 2-2-1 . drawer or eject section cover. open the release unit. J02 or J03 indicating the location of the jam. To remove paper jammed in the copier. Alternates. The paper misfeed detection can be reset by opening and closing the front cover or release unit to turn the safety switch off and back on. The letter J and the number alternates on the display.195 2-2-1 Paper misfeed detection When a paper jam occurs. PF: No paper feed (or. J01. the copier immediately stops copying and the copy quantity/ magnification display on the operation unit shows PF. Off RCL 4000 ms On Off On RSW Timing chart 2-2-2 Paper jam in the fixing section (J01) • The eject switch (ESW) does not turn on within 1668 ms after the registration clutch (RCL) has turned on.195 2-2-2 Paper misfeed detection conditions No paper feed (PF) • The registration switch (RSW) does not turn on within 1100 ms after the paper feed clutch (PFCL) has turned on during drawer paper feed. Off PFCL On 1100 ms Off On RSW Timing chart 2-2-1 Paper jam in the registration section (J03) • The registration switch (RSW) does not turn off within 4000 ms after the registration clutch (RCL) has turned on. Off RCL On 1668 ms Off On ESW Timing chart 2-2-3 2-2-2 . Off RSW 2000 ms On Off On ESW Timing chart 2-2-4 2-2-3 .195 Paper jam in the eject section (J02) • The eject switch (ESW) does not turn off within 2000 ms after the registration switch (RSW) has turned off. ..... 2-3-1 2-3-2 2-3-3 2-3-4 .............................................................................................................................................................. Main PCB ................................. Operation unit PCB .......................................... AVR PCB ....................195 2-3 Operation of the PCB 2-3-1 2-3-2 2-3-3 2-3-4 Power source PCB .......................................................................... Noise filter circuit 1 consists of choke coil L1. the output feedback circuit sends that information to switch control IC1 via photocoupler PC2. inhibiting IC1. 2-3-1 . Switching control IC1 regulates the 24 V DC supply by controlling the switching operation of FET Q1 depending on the signal fed back by the output feedback circuit via photocoupler PC1. The switching circuit turns FET Q1 on and off via switching control IC1. The 5 V DC smoothing/ output circuit converts the potential induced across the other secondary coil of T1 into a stable 5 V DC output via regulator IC201. If an overvoltage occurs on the 24 V or 5 V DC output. The AC input is full-wave rectified by diode bridge DB1 and then smoothed by smoothing capacitor C9. The 24 V DC smoothing/output circuit converts the potential induced across the secondary coil of T1 into a stable 24 V DC output via diode D101 and smoothing capacitor C102. a resistor and capacitor. Noise filter circuit 2 attenuates any external noise that has passed through noise filter circuit 1 and prevents the switching noise generated in the power source PCB from escaping out via the AC line.195 2-3-1 Power source PCB MSW SSW AC input T1 Noise filter circuit 1 L1 Noise filter circuit 2 L3 Rectifying circuit DB1 + C9 Q1 Switching circuit IC1 PC1 PC2 24 V DC smoothing /output circuit D101/C102 5 V DC smoothing /output circuit IC201 24 V DC output Output feedback circuit 5V DC output PSPCB Figure 2-3-1 Power source PCB block diagram The power source PCB (PSPCB) consists of the circuit blocks shown in Figure 2-3-1 and converts the AC input into stable 5 V and 24 V DC outputs. turning current to the primary coil of switching transformer T1 on and off. These attenuate external noise and prevent noise generated by the electrical components from escaping out of the copier via the AC line. Based on the control programs in EPROM IC15. toner sensor (TNS).195 2-3-2 Main PCB MPCB Scanner motor drive circuit IC11 HL REM AVR circuit H REM LM DM CPU IC12 Shorted thermistor detection circuit H AVRPCB HL SM MM OP FM Scanningrelated switches and sensors TNS OPCB HVT PCB Reset IC IC1 EPROM IC15 Driver IC IC17 FTH CL FFM PFCL RCL RSW ESW Figure 2-3-2 Main PCB block diagram The main PCB (MPCB) consists of the CPU and control circuits that regulate the electrical components during the copying process. clutches and switches in the paper feed. scanning-related motors. registration and eject sections. switches and sensors. The halogen lamp (HL) and the fixing heater (H) are also controlled by the main PCB via the AVR PCB (AVRPCB). CPU IC12 controls the overall copier system: the drive motor. and sends out MC and TC remote signals to the high-voltage transformer PCB (HVTPCB). 2-3-2 . HL CONT is a PWM signal turned on and off at a duty ratio set by the halogen lamp light intensity data. The halogen lamp (HL) light intensity is controlled by control signal HL CONT from the main PCB. causing it to conduct and allow current to flow to the fixing heater (H) to turn it on. and the switching section with triacs TRC1. using an internal zerocrossing signal as a reference. * For 230 V specifications and optional for 240 V specifications. This adjusts the phase of the trigger which turns photocoupler PC3 on. This applies a trigger voltage to the gate of triac TRC3. TRC2 and TRC3 that turn the fixing heater (H). This applies a trigger voltage to the gate of triac TRC2. causing it to conduct and allow current to the flicker resistor to operate it. regulating the halogen lamp light intensity. Control signal H REM from the main PCB turns photocoupler PC2 on when low.195 2-3-3 AVR PCB AVRPCB PC5 TRC3 Flicker resistor PC2 TRC2 H PC1 Flicker REM MPCB H REM HL CONT PWM signal/ voltage converter circuit AC input Halogen lamp light intensity control IC (HIC) PC3 TRC1 HL Figure 2-3-3 AVR PCB block diagram The AVR PCB (AVRPCB) consists of two major sections: the halogen lamp control section with the PWM signal/voltage converter circuit and halogen lamp light intensity control IC (HIC). based on the halogen lamp light intensity data converted into a voltage. The Flicker REM signal from the main PCB turns photocoupler PC5 on when low. The flicker resistor* limits the surge generated by the fixing heater (H) being turned on. flicker resistor* and halogen lamp (HL) on and off. 2-3-3 . This signal is converted into a voltage by the PWM signal/voltage converter circuit and is output to the halogen lamp light intensity control IC (HIC). The phase-shifted trigger applied to the gate of triac TRC1 changes the amount of current flowing to the halogen lamp (HL). The main PCB (MPCB) outputs scan signals that go low in sequence to the sink drivers for lines DIG 0 to DIG 4. the main PCB (MPCB) turns on one of the source drivers for lines SEG a to SEG g to allow current to the line on which the LED or 7segment LED to be lit is present. The main PCB (MPCB) identifies the specific key by the location of the point where the line emitting the scan signal and the line with the low return signal meet. 7-segment LEDs and key switches arranged in matrix. each line of return signals KEY 0 and KEY 1 is pulled high to 5 V DC by the main PCB (MPCB). When none of the keys on the operation panel is pressed. Scan signals which go low in sequence are constantly output to the sink drivers for lines DIG 0 to DIG 5. The operation unit PCB (OPCB) also controls the blank lamps which are 28 LEDs. To light an LED or 7-segment LED. the key switch conducts and the return signal goes low due to the scan signal. so when a key is pressed. To light the blank lamps. the main PCB (MPCB) turns on the source drivers for lines BL SEG a to BL SEG e to allow current to the lines on which the blank lamps to be lit are 2-3-4 . The status of key switches is detected by return signals KEY 0 and KEY 1.195 2-3-4 Operation unit PCB OPCB LEDs and 7-seg LEDs MPCB 24 V DC SEG a SEG b SEG c SEG d SEG e SEG f SEG g DIG 0 DIG 1 DIG 2 DIG 3 DIG 4 DIG 5 DIG 6 Source driver PG Sink driver 5 V DC S KEY 0 KEY 1 Key switches BL SEG a BL SEG b BL SEG c BL SEG d BL SEG e BL DIG 5 BL DIG 6 Blank lamps Figure 2-3-4 Operation unit PCB block diagram The operation unit PCB (OPCB) consists of LEDs. so current flows through the LED for which the two signals are low simultaneously. so current flows through the LEDs for which the both signals are low simultaneously. 2-3-5 .195 present. Scan signals which go low in sequence are constantly output to the sink drivers for lines BL DIG 5 and BL DIG 6. III SET UP AND ADJUSTMENT SECTION III Set Up and Adjustment Section DC-1460 S/M (MCA) . ....... 3-1-11 3-1-4 Installing the flicker resistor (optional.................................... 3-1-10 3-1-3 Installing the dehumidifier heater (optional........................................................................... 3-1-1 ( 1 ) Installation environment ........... 3-1-1 ( 2 ) Installation procedure ........................................................ 240 V/50 Hz specifications only) .................. 3-1-2 3-1-2 Setting initial copy modes ....... 3-1-13 ........................................................................................195-1 195 3-1 Installation 3-1-1 Unpacking and installation .................................................................................. 120 V specifications only) ...................... Allow sufficient access for proper operation and maintenance of the machine. • Choose a surface capable of supporting the weight of the machine. Power supply: 120 V AC. • Avoid airborne substances that may adversely affect the machine or degrade the photoconductor. Installation location • Avoid direct sunlight or bright lighting. and hot or cold air directly hitting the machine.3% 4. Power source frequency: 50/60 Hz ± 0. 5. inorganic gases. Temperature and humidity: 10° C/50° F to 35°C/95°F. 220 . acidic and alkaline vapors. 8 A 3. abrupt ambient temperature changes. • Avoid extremes of temperature and humidity. • Place the machine on a level surface (maximum allowable inclination: 1° ). 12 A. • Avoid dust and vibration. Machine front: 1000 mm/393/8" Machine rear: 100 mm/315/ 16" Machine right: 100 mm/315/ 16" Machine left: 300 mm/1113/16 " d f c b e a a: 515 mm/201/ 4" c: 320 mm/125/8" b: 465 mm/185/ 16" d: 775 mm/301/2" e: 780 mm/3011/16 " f: 660 mm/26" Figure 3-1-1 Installation dimensions 3-1-1 . 15 . Make sure that the photoconductor will not be exposed to direct sunlight or other strong light when removing paper jams.240 V AC. SOx gases and chlorine-based organic solvents.85% RH 2. NOx. • Select a room with good ventilation.195 3-1-1 Unpacking and installation ( 1 ) Installation environment 1. such as mercury. Remove the developing unit spacer. Remove the tapes. Install the copy tray. Copy tray Lens unit pin Light source unit 1 pins Light source unit 2 pin Figure 3-1-2 3-1-2 . Apply fixing pressure. Remove the pins. Completion of machine installation. Make test copies. Load developer (metric specifications only).195 195-1 ( 2 ) Installation procedure Start Unpack. Install a toner cartridge. Carry out initial developer setting. Remove the developing unit seal (inch specifications only). 195-1 195 Unpack. ! A 4 $ 0 5 1 7 9 A ! # 2 @ 3 6 Figure 3-1-3 Unpacking 1 2 3 4 5 6 7 Bottom pads Top pads Outer case Plastic sheet Plastic bag Bar code labels Inner frame 8 Copier 9 Copy tray 0 Power cord ! Tag @ Instruction handbook # Plastic bag $ Developing unit spacer 3-1-3 . and remove these pins.195 195-1 Remove the tapes. Tapes Tapes Figure 3-1-4 Remove the pins. Light source unit 2 pin Light source unit 1 pins Figure 3-1-5 3-1-4 . 1. Remove the tapes holding the two light source unit 1 pins and one light source unit 2 pin on the machine right. 1. Remove the tapes holding the original holder. 195-1 195 2. Remove the tape and the developing unit spacer from the developing unit. Developing unit spacer Developing unit Figure 3-1-6-1 3-1-5 . 1. and remove the tape holding the lens unit pin and then the pin. Lens unit pin Figure 3-1-6 Remove the developing unit spacer. Open the front cover. Developing unit seal Figure 3-1-7 3-1-6 3-1-5-1 . While holding the developing unit. peel off the developing unit seal. 1.195 195-1 Remove the developing unit seal (inch specifications only). 195 This page is intentionally left blank. 3-1-7 . Important: Place the developing unit on a level surface. 1. Developing unit Developing unit cover Figure 3-1-9 3-1-8 3-1-6 . Developing unit Figure 3-1-8 2. Unlock the developing unit release lever and take out the developing unit. Remove the developing unit cover from the developing unit by pulling it in the direction of the arrow (four screws).195 Load developer (metric specifications only). Reinsert the developing unit into the copier and lock the developing unit release lever. Close the release unit. Close the front cover. 3. 4. While turning the gear in the direction of the arrow. Developing unit gear Figure 3-1-10 5. 3-1-9 3-1-7 . The fixing pressure is applied. 1.195 3. Press the release unit button to open the unit. 6. Apply fixing pressure. pour developer into the developing unit so that it covers the entire developing roller uniformly. Shake the developer bottle well. Refit the developing unit cover. Rerease unit button Release unit Figure 3-1-11 2. press the stop/clear key to enter simulation mode. 3. Plug the power cord into the copier and the wall outlet. Turn the main switch on. After about 2 minutes. Press the stop/clear key to enter simulation mode within 2 s after “ ” has been displayed on the copy quantity/magnification display. and decimals are shown on the copy quantity/magnification display (See page 3-22). While pressing the print key and the stop/clear key at the same time. 2. Turn the main switch off and back on while pressing the print and stop/clear keys. It takes about 2 minutes. 4. 3-1-10 3-1-8 .35 V Figure 3-1-12 6.35 V 4 1 2 3 2. 2. The copier starts its drive and automatically carries out initial developer setting. turn the main switch on.195 195-1 Carry out initial developer setting. 3. 4. Press the stop/clear key. • Metric specifications 1. • Inch specifications 1. Within 2 s after the copy quantity/magnification display shows “ ”. the toner control voltage is automatically set and the value is indicated as shown below: the integer is indicated by the fixed magnification indicators or auto exposure indicator. Enter 60 with the quantity/zoom-up or -down key and press the print key. Plug the power cord into the copier and the wall outlet. Example If the value is 2. 5. Press the print key. Press the stop/clear key.195-1 195 Setting the destination. Australia and New Zealand Inch. Belgium. Enter 01 with the quantity/zoom-up or -down keys and press the print key. The new setting is stored. Australia and New Zealand The Philippines 3. 4. Press the print key. The simulation mode is exited. 5. Enter 93 with the quantity/zoom-up or -down keys and press the print key. Setting 0 1 2 3 4 5 Contents Metric. excluding Spain. Change the setting with the quantity/zoom-up or down keys. excluding the Philippines Spain Belgium Peru. 2. 3-1-8-1 3-1-11 . 1. Peru. 3-1-12 .195 This page is intentionally left blank. Shake the new toner cartridge well and insert it into the copier. Close the front cover. 3-1-13 3-1-9 . 2. Install the copy tray. Open the front cover. Toner cartridge Figure 3-1-13 3. Install the copy tray to the eject section of the copier. 1.195 Install a toner cartridge. Place paper in the paper drawer and make test copies. 1. 1. Make test copies. Completion of machine installation. No. 85 89 91 92 93 96 98 99 Contents Selecting between auto preheat on/off Setting the presence of the flicker resistor Setting operation under the toner empty condition Selecting between auto start on/off Setting the destination Setting the memory switch Setting the maintenance method Selecting between E2000-compliant function on/off Factory setting On Not installed 20 copies On Metric 7 steps User No 3-1-14 3-1-10 .195 195-1 3-1-2 Setting initial copy modes Factory settings are as follows: Sim. Remove the right and rear covers. Dehumidifier heater Binding taptight screws. M3×6 Figure 3-1-15 3-1-15 3-1-11 . Power source PCB Figure 3-1-14 3.195 3-1-3 Installing the dehumidifier heater (optional. M3 × 6 (P/N B3023060) Procedure 1. Fit the dehumidifier heater to the copier with the two M3 × 6 binding taptight screws. Unplug all the connectors on the power source PCB and remove the PCB from the copier (two screws). 2. 120 V specifications only) • Required parts Dehumidifier heater (P/N 36727460) Heater primary wire (P/N 19560010) Binding taptight screw. Plug the 2-pin connector of the heater primary wire into the dehumidifier heater. Remove the copier primary wire from the AVR PCB and connect the heater primary wire in place of it. AVR PCB Heater primary wire Figure 3-1-16 5. Refit all the removed parts. 3-1-16 3-1-12 .195 4. Dehumidifier heater 2-pin connector Heater primary wire Figure 3-1-17 6. Connect the resistor wire to the 10Ω 40 W resistor and 10Ω 40 W 157 resistor. Remove the right and rear covers. 2. Resistor. WS-2NS (P/N M2109010) Binding S tight screw. Power source PCB Figure 3-1-18 3. 10 Ω 40 W 157 (P/N 36727610) Wire saddle. 10 Ω 40 W (P/N 36727600) Resistor. 240 V/50 Hz specifications only) • Required parts Resistor wire (P/N 19527230) Resistor. 10 Ω 40 W 157 Resistor wire Resistor. 10Ω 40 W Figure 3-1-19 3-1-17 3-1-13 .195 195-1 3-1-4 Installing the flicker resistor (optional. Unplug all the connectors on the power source PCB and remove the power source PCB from the copier (two screws). M4 × 6 (P/N B3024060) Procedure 1. 10 Ω 40 W Wire saddle. 5. 3-1-18 3-1-14 . Turn the main switch on and change the setting of simulation 89 to 1 (installed). Attach the 10Ω 40 W and 10Ω 40 W 157 resistors to the copier with one M4 × 6 binding S tight screw each. 8. Pass the resistor wire through the cutout in the copier and connect the 4-pin connector to CN3 on the AVR PCB. Refit the removed parts. Binding S tight screws M4 × 6 Resistor. Attach the wire saddle WS-2NS to the copier and pass the resistor wire through it. 10 Ω 40 W 157 Resistor wire Figure 3-1-20 6.195 195-1 4. WS-2NS Resistor. 4-pin connector CN3 AVR PCB Resistor wire Figure 3-1-21 7. .............................................................................................195 3-2 Simulation 3-2-1 Simulations ................................................................................................... ( 1 ) Running a simulation ... 3-2-1 3-2-1 3-2-4 3-2-5 ........ ( 2 ) Simulation list ................................................. ( 3 ) Contents of simulations ....................................... · · · · · · · Simulation mode is exited. · · · · · · · · · · · · · · · · · · · · · · “00” is shown on the copy quantity/magnification display. Press the stop/clear key within 2 s. Press the stop/clear key. *1 Press the quantity/zoom-up key to change the 10s digit and the quantity/zoom-down key to change the 1s digit. · · · · · · · · · · · · · · · · · · · · · · “ ” is shown on the copy quantity/magnification display. · · · · · · · · · · · · · · · · · · · · · · The selected simulation number is shown on the copy quantity/magnification display. The simulation is run. ( 1 ) Running a simulation Start While pressing the print key and stop/clear key at the same time. to be executed with the quantity/zoom-up and -down keys*1. Yes Run again? No Yes Run another simulation? No Enter 01 with the quantity/zoomup and -down keys and press the print key.195 3-2-1 Simulations The copier is equipped with a simulation function which can be used to check and adjust the operation of copier components. turn the main switch on. Press the print key. · · · · · · · Simulation mode is entered. Enter the number of the simulation · · · · · · · A simulation is selected. End 3-2-1 . 35 V Figure 3-2-1 3-2-2 . it is indicated as shown below: the integer is shown by the fixed magnification indicators or auto exposure indicator.35 V Metric 4 1 2 3 2.35 V Inch 4 1 2 3 2.195 • Indication of the set values When a set value includes decimals. and decimals are shown on the copy quantity/magnification display. Example If the value is 2. 195 • Indication of the selected mode In a simulation with multiple modes. Metric Mode Exposure adjustment keys Inch Mode Exposure adjustment keys Figure 3-2-2 3-2-3 . Use the exposure adjustment keys to change the modes. one of the exposure indicators lights to show the selected mode. 195 195-1 ( 2 ) Simulation list Sim. No. 01 02 08 Paper feed/ conveying 10 11 54 57 58 59 Optical 20 24 25 26 27 28 29 Section All Simulation contents Exiting simulation mode Copying without paper Setting shipping defaults Turning the drive motor on Checking switch operation Adjusting the leading edge margin Adjusting the trailing edge blank cut timing Adjusting the leading edge registration timing Adjusting the trailing edge margin Turning the halogen lamp on Setting the exposure amount Adjusting lateral magnification Adjusting longitudinal magnification Making fine adjustment to image focus Adjusting the auto exposure Adjusting exposure amount for enlargement/ reduction mode Default Charging Cleaning Fixing Operation panel Developing 33 42 47 50 60 62 67 Setting the drum potential Making a blank lamp test copy Setting the fixing temperature Lighting all the LEDs on the operation panel Initializing the toner control level Checking/setting the toner control voltage Checking ambient temperature and humidity Initializing the backup memory Checking/setting the maintenance cycle Checking/clearing the maintenance count 30000 Cleared Memory initialize Counts 70 71 73 3-2-4 . No. 85 Section Copy modes Simulation contents Selecting between auto preheat on/off Default On 89 91 92 93 96 98 99 Setting the presence of the flicker resistor Setting operation under the toner empty condition Selecting between auto start on/off Setting the destination Setting the memory switch Setting the maintenance method Selecting between E2000-compliant function on/off Not installed 20 copies On Metric 7 steps User No 3-2-4-1 3-2-5 .195-1 195 Sim. 3-2-6 .195 This page is intentionally left blank. Description 3-2-5 . Method 1. Important: Since this simulation clears the maintenance count. Purpose To check general machine operation. run simulation 73 and check it beforehand. 02 Copying without paper Description Makes copies without feeding paper. The copier operates according to the selected modes. 01 Exiting simulation mode Description Exits simulation mode and returns to normal mode. Method Press the print key. 3. 08 Setting shipping defaults Description Moves the scanner to the shipping position. 2. Put a plain white A4 original in place. Open the drawer. Purpose Used when ending simulation mode. The copier returns to normal mode. Completion Press the stop/clear key. Copying operation stops.195 (3) Contents of simulations Sim. Purpose To be run before moving the machine. No. Select copy modes and press the print key to start copying. Method Press the print key. Completion Press the stop/clear key. The fixing unit fan motor slows to half speed and the other components are turned off. On Registration switch Eject switch Completion Press the stop/clear key. and the fixing unit fan motor rotates at full speed. Method Press the print key. cleaning lamp and developing bias are turned on. Completion Press the stop/clear key. The drive motor. 11 Checking switch operation Description Shows the status of the registration and eject switches. Method Turn each switch on and off manually. Purpose To check if the registration and eject switches are defective. Purpose To check the drive system operation. The copy quantity/magnification display shows the status of the switch. 01 10 Off 00 00 Description 3-2-6 . 10 Turning the drive motor on Description Operates the drive motor. No.195 Sim. 26 Adjusting longitudinal magnification Adjustment See page 3-3-49. 3-2-7 . 28 Adjusting the auto exposure Adjustment See page 3-3-41. The halogen lamp lights at the selected intensity for 15 s. 20 Description Turning the halogen lamp on Description Lights the halogen lamp. Completion Press the stop/clear key.195 Sim. The halogen lamp is turned off. 2. Method 1. Select an exposure level with the exposure adjustment keys. 25 Adjusting lateral magnification Adjustment See page 3-3-45. 27 Making fine adjustment to image focus Adjustment See page 3-3-32. Press the print key. Purpose To check the halogen lamp operation. 24 Setting the exposure amount Adjustment See page 3-3-37. No. 29 Adjusting exposure amount for enlargement/reduction mode Adjustment See page 3-3-42. 3. Purpose To check blank lamp operation. Method Press the print key. 3-2-8 .195 195-1 Sim. Completion Press the stop/clear key. 4. Load a sheet of the maximum size. Purpose To be run when adjusting the developing bias. Press the print key. 42 Making a blank lamp test copy Description Lights the blank lamps. Press the zoom input/enter key. No. Test copy mode is entered. The drum potential setting starts. Description 33 Setting the drum potential Description Sets the drum potential. Open the original holder. The blank lamps light in a preset order and the pattern shown below is printed to check operation. Figure 3-2-3 Completion Press the stop/clear key. Method 1. 2. 15 V (185°C) 3.45 V 4.195-1 195 Sim. Press the print key. Setting 1. 3.45 V 1. No. The new setting is stored. 3-2-9 . All the LEDs on the operation panel light. Purpose To check the operation of the LEDs on the operation panel.05 V (80°C) Fixing (secondary) stabilization 3. Purpose To be run when a fixing problem occurs. Changing the value by one changes the temperature by 0. 50 Lighting all the LEDs on the operation panel Description Lights all the LEDs on the operation panel. Select the mode to be set with the exposure adjustment keys.39 to 4.98 V (175°C) 3.3° C when it is 80°C.70 to 4.45 V 3. Completion Press the stop/clear key.6°C when the fixing temperature is 180 °C and 0. The current setting for that mode is indicated by the combination of lighting of one of the fixed magnification indicators or the auto exposure indicator and the figures on the copy quantity/magnification display.45 V 4. 47 Description Setting the fixing temperature Description Changes the fixing heater control value to adjust the fixing temperature.41 to 4. Completion Press the stop/clear key. The LEDs turn off. Mode 1 2 3 4 5 Standby Contents Setting range Initial value 1.21 V (189°C) 0.41 to 4.45 V 4.41 to 4. Method Press the print key.15 V (185°C) During copying During ejection Fixing drive start 2. Change the setting with the quantity/zoom-up and -down keys. The drive motor turns on and aging is carried out for about 2 minutes. 58 Adjusting the leading edge registration timing Adjustment See page 3-3-5. 59 Adjusting the trailing edge margin Adjustment See page 3-3-11.195 Sim. The toner control voltage is automatically set and the value is indicated by the combination of lighting of one of the fixed magnification indicators or the auto exposure indicator and the figures on the copy quantity/magnification display. 54 Description Adjusting the leading edge margin Adjustment See page 3-3-7. 60 Initializing the toner control level (metric specifications only) Description Sets the toner control voltage automatically. 57 Adjusting the trailing edge blank cut timing Adjustment See page 3-3-9. Purpose To be run during machine setup or after replacing developer or the developing unit. Method Press the print key. Completion Press the stop/clear key. 3-2-10 . No. Completion Press the stop/clear key.00 to 5. Method 1. 62 Description Checking/setting the toner control voltage Description Checks the initial toner control voltage automatically set by simulation 60. Press the print key.195 Sim. Setting 1. Purpose To check if the humidity sensor has a problem. Select the mode to be checked with the exposure adjustment keys. 3-2-11 . The drive motor turns on and the new toner control voltage is indicated by the combination of lighting of one of the fixed magnification indicators or the auto exposure indicator and the figures on the copy quantity/magnification display. Purpose To be run after replacing the main PCB. 67 Checking ambient temperature and humidity Description Displays ambient temperature and humidity. The current setting is indicated by the combination of lighting of one of the fixed magnification indicators or the auto exposure indicator and the figures on the copy quantity/magnification display. Mode 1: temperature Mode 2: relative humidity Mode 3: absolute humidity Completion Press the stop/clear key. Press the print key. 2. Setting range: 0.00 V Reference: 3. or sets the toner control voltage. Change the value with the quantity/zoom-up and -down keys. Method Press the print key. No.00 V 2. +2 Lateral magnification (lens travel distance) 100% copy Enlargement copy Reduction copy Longitudinal magnification Fine adjustment of image focus Lens home position for enlargement copy Lens home position for reduction copy Mirror home position for enlargement copy Mirror home position for reduction copy Lens home position for 100% copy Mirror home position for 100% copy Auto exposure Prescan exposure amount NTC level NPTC level Enlargement/reduction-mode exposure amount Enlargement copy Reduction copy Fixing temperature Standby Fixing (secondary) stabilization During copying During ejection Fixing drive start Leading edge margin 100% copy Enlargement copy Reduction copy Trailing edge blank cut timing Initial data 62 –18 30 0 0 0 13 0 0 0 0 32 32 80 3.50 V 2.05 V 4. 4 Manual Exp.05 V 4. Sim No. Purpose To be run after replacing the main PCB. 2. 70 Description Initializing the backup memory Description Initializes the contents of the backup memory.00 V 0 1 3.05 V 131 140 127 84 25 26 27 28 29 47 54 57 3-2-12 .90 V 4. Press the exposure mode key. 24 Contents Exposure amount Manual Exp. Press the print key. The following data in memory is initialized. No.195 195-1 Sim. Method 1.21 V 1. 1 Manual Exp. 58 Description Contents Leading edge registration timing 100% copy Enlargement copy Reduction copy Trailing edge margin Toner control voltage Maintenance cycle Maintenance count Auto preheat Setting the presence of the flicker resistor Operation under toner empty condition Auto start Destination Memory switch setting Maintenance method E2000-compliant function Initial data 108 121 91 95 3. No. After running simulation 70.) Sim No. run the above simulations and reenter the settings recorded on the simulation label.00 V 30000 Cleared On Not installed 20 copies On Metric 7 steps User No 59 62 71 73 85 89 91 92 93 96 98 99 Completion Press the stop/clear key. 3-2-13 . 70 (cont.195-1 195 Sim. 2. Completion Press the stop/clear key. Select the mode to be set with the exposure adjustment keys. Change the setting with the quantity/zoom-up and -down keys. 3-2-14 . Purpose To be run after replacing the main PCB. The new setting is stored.000s digits Mode 2: 1. No. 71 Description Checking/setting the maintenance cycle Description Checks/sets the maintenance cycle. The current setting is shown on the copy quantity/ magnification display. Press the print key.000s and 10. Mode 1: 100. Method Press the print key.000s and 100s digits Mode 3: 10s and 1s digits Setting 1. Setting range: 0 to 999999 Reference: 30000 3.195 Sim. or before and after replacing the main PCB or running simulation 08 (Setting shipping defaults). 3-2-15 . Mode 1: 100.195 Sim. 3. No. set every digit to 0. The new setting is stored. 2. Purpose To be run after replacing the drum and developing units. Completion Press the stop/clear key. Select the mode to be set with the exposure adjustment keys. 73 Description Checking/clearing the maintenance count Description Checks/resets the maintenance count.000s digits Mode 2: 1. Press the print key. The current count is shown on the copy quantity/ magnification display.000s and 10. Setting range: 0 to 999999 Reference: 0 To clear the count. Method Press the print key. Change the value with the quantity/zoom-up and -down keys.000s and 100s digits Mode 3: 10s and 1s digits Setting 1. Completion Press the stop/clear key. 3-2-16 . Press the print key. Change the setting with the quantity/zoom-up or -down keys. Method To be run after the installation of the optional flicker resistor. 0: Flicker resistor not installed 1: Flicker resistor installed Reference: 0 2. Press the print key. Setting 1. The new setting is stored. Purpose To be set according to user request. The new setting is stored.195 195-1 Sim. No. Change the setting with the quantity/zoom-up and -down keys. 0: Auto preheat function off 1: Auto preheat function on 2. 89 Setting the presence of the flicker resistor (240 V/50 Hz specifications only) Description Sets the presence of the flicker resistor. Completion Press the stop/clear key. 85 Description Selecting between auto preheat on/off Description Turns the auto preheat function on/off. Setting 1. 3-2-16-1 . Setting range: 0 to 199 Reference: 20 2. Setting 1. Completion Press the stop/clear key. The new setting is stored. No. 91 Description Setting operation under the toner empty condition Description Sets the maximum number of copies that can be made under the toner empty condition. Press the print key.195-1 195 Sim. Change the setting with the quantity/zoom-up and -down keys. Purpose To be set according to user request. .195 This page is intentionally left blank. Setting 1. Purpose To be run after replacing the main PCB or machine installation. Australia and New Zealand The Philippines 2. 3-2-17 . Belgium. The new setting is stored. Press the print key. The new setting is stored. excluding the Philippines Spain Belgium Peru. Peru. Completion Press the stop/clear key. Setting 0 Contents Metric.195-2 195 Sim. Change the setting with the quantity/zoom-up and -down keys. 0: Auto start function off 1: Auto start function on 2. 93 Setting the destination Description Sets the destination of the machine. Change the setting with the quantity/zoom-up and -down keys. Press the print key. Setting 1. Completion Press the stop/clear key. No. Purpose To be set according to user request. 92 Description Selecting between auto start on/off Description Turns the auto start function on/off. excluding Spain. Australia and New Zealand 1 2 3 4 5 Inch. No.99 Initial value: 99 The setting in mode 2 indicates the limit to the number of copies that can be set on the operation panel. Change the setting with the quantity/zoom-up and -down keys. • Mode 1 0: 7 steps 1: 13 steps Initial value: 0 • Mode 2 Setting range: 1 . • When the setting (the copy limit) is 1 Copy quantity display 1s digit 10s digit 1 none (not available) 3-2-18 . Select the mode with the exposure adjustment keys. Description 96 Setting the memory switch Description Sets the number of exposure steps for manual mode and the copy limit. The limit can be set to any number between 1 and 99. The operation of the quantity/zoom-up key (10s digit) and quantity/zoom-down key (1s digit) is restricted as in the following examples. Mode 1: Setting the number of exposure steps for manual mode Mode 2: Setting the copy limit 2.195 195-2 Sim. Purpose To change the number of exposure steps for manual mode or the copy limit. Setting 1. 10s digit 3-2-18-1 . 10s digit • When the setting (the copy limit) is 25 Copy quantity display 4 5 6 7 8 1 1s digit 2 3 9 0 0 cannot be selected when there is no tens digit. • When the setting (the copy limit) is 50 Copy quantity display 4 5 6 7 8 1 1s digit 2 3 9 0 0 cannot be selected when there is no tens digit. none 1 2 3 4 5 5 can be selected only when the 1s digit is 0. none 1 1 can be selected only when the 1s digit is 1.) • When the setting (the copy limit) is 5 Copy quantity display 4 5 1s digit 10s digit 1 2 3 none (not available) • When the setting (the copy limit) is 10 Copy quantity display 4 5 6 7 8 1 1s digit 2 3 9 0 is displayed only when the 10s digit is 1. Description 96 (cont.195-2 195 Sim. No. When the 10s digit is 2. only numbers between 0 and 5 can be selected. none 1 2 10s digit 2 can be selected only when the 1s digit is between 0 and 5. ) • When the setting (the copy limit) is 99 Copy quantity display 4 5 6 7 8 1 1s digit 10s digit 2 3 9 0 0 cannot be selected when there is no tens digit. none 1 2 3 4 5 6 7 8 9 3.195 195-2 Sim. The new setting is stored. Description 96 (cont. 3-2-18-2 . Completion Press the stop/clear key. Press the print key. No. Australia and New Zealand only) Description Sets whether the machine is to be serviced by the user or by service personnel. 98 Description Setting the maintenance method (available in Peru.195-2 195 Sim. No. Change the setting with the quantity/zoom-up and -down keys. Completion Press the stop/clear key. Purpose To be set according to user request. Press the print key. The new setting is stored. 0: User maintenance 1: Service maintenance 2. 3-2-18-3 . Setting 1. .This page is intentionally left blank. .............................. 3-3-33 (7-2) Adjusting the mirror home position for enlargement mode . 3-3-1 3-3-2 Paper feed section ............................................. 3-3-5 (3-2) Adjusting the leading edge margin ....................................................................................... 3-3-46 (11-2) Correcting the lens travel distance for enlargement copying.................................................... 3-3-9 (3-4) Adjusting the trailing edge margin ............................................................................................................. 3-3-21 ( 5 ) Adjusting longitudinal image squareness (inclination of light source 2) ..................................................................................................................... 3-3-32 (7-1) Adjusting the mirror home position for 100% copying .............................. 3-3-37 ( 9 ) Adjusting the auto exposure ...................................... 3-3-2 ( 2 ) Replacing the feedshift films ..... 3-3-41 (10) Adjusting exposure amount for enlargement /reduction mode........ 3-3-11 3-3-3 Main charging section ................................................................................... 3-3-43 (10-2) Adjusting exposure amount for reduction mode (70%) .................... 3-3-13 ( 1 ) Replacing the charger wire ...................................................................................................................... 3-3-36 ( 8 ) Setting the exposure amount ........... 3-3-4 ( 3 ) Adjustments after installing roller and clutches .......... 3-3-45 (11-1) Correcting the lens travel distance for 100% copying ............................................. 3-3-48 (12) Adjusting longitudinal magnification (scanning speed) ................................................................ 3-3-17 ( 3 ) Adjusting the positions of the light adjusters .... .... 3-3-47 (11-3) Correcting the lens travel distance for reduction copying ........................................................... 3-3-16 ( 2 ) Detaching and refitting the optical section thermostat ..... 3-3-49 ...... 3-3-7 (3-3) Adjusting the trailing edge blank cut timing .................................... 3-3-19 (4-2) Installing the scanner wires .......................... 3-3-30 ( 6 ) Adjusting lateral image squareness (height of light source 2) ................. 3-3-31 ( 7 ) Making fine adjustment to image focus ........................ 3-3-44 (11) Adjusting lateral magnification (correcting the lens travel distance) ........................................................ 3-3-18 ( 4 ) Detaching and refitting the scanner wires .......................195 3-3 Assembly and Disassembly 3-3-1 Precautions for assembly and disassembly ....................................... 3-3-13 3-3-4 Exposure section ................................. 3-3-5 (3-1) Adjusting leading edge registration timing .................................................................... 3-3-1 ( 1 ) Precautions ...................... 3-3-19 (4-1) Detaching the scanner wires ..................................................................................... 3-3-35 (7-3) Adjusting the mirror home position for reduction mode ......................................................................................................... 3-3-16 ( 1 ) Detaching and refitting the halogen lamp ............... 3-3-42 (10-1) Adjusting exposure amount for enlargement mode (141%) ............................................ 3-3-2 ( 1 ) Detaching and refitting paper feed pulleys A and B ................................................................................................................................. ...... 3-3-50 ( 2 ) Cleaning the drum .................................... 3-3-55 ( 1 ) Replacing the charger wires ................. 3-3-61 Fixing section ............................ 3-3-71 ( 7 ) Detaching and refitting the fixing blade ...................................... 3-3-59 ( 2 ) Detaching and refitting the lower cleaning blade ............ 3-3-72 ............................................................... 3-3-53 ( 1 ) Replacing developer .......................... 3-3-65 ( 3 ) Detaching and refitting fixing thermostats 1 and 2 .. 3-3-55 Cleaning section (metric specification only) .......................... 3-3-69 ( 6 ) Detaching and refitting the heat roller separation claws .......... 3-3-66 ( 4 ) Detaching and refitting the press roller ............ 3-3-62 ( 2 ) Detaching and refitting the fixing unit thermistor ........................................ 3-3-53 ( 2 ) Adjusting the formation position of the magnetic brush (reference) ....... 3-3-62 ( 1 ) Detaching and refitting the fixing heater .. 3-3-50 ( 1 ) Detaching and refitting the drum .................................................................................................................................................................................................................... 3-3-52 Developing section (metric specification only) ............................................................................................................. 3-3-54-2 Transfer section ....................... 3-3-67 ( 5 ) Detaching and refitting the heat roller ............................. 3-3-59 ( 1 ) Replacing the cleaning blade ......................................................... 3-3-54-1 ( 3 ) Adjusting developing bias voltage (reference) .195-1 3-3-5 3-3-6 3-3-7 3-3-8 3-3-9 Drum section (metric specification only) ........................................................................................... do not touch connectors with bare hands or damage the board. • When handling PCBs. Blue graph paper 3-3-1 . • Use the following testers when measuring voltages: Hioki 3200 Sanwa MD-180C Sanwa YX-360TR Beckman TECH300 Beckman DM45 Beckman 330 (capable of measuring RMS values) Beckman 3030 (capable of measuring RMS values) Beckman DM 850 (capable of measuring RMS values) Fluke 8060A (capable of measuring RMS values) Arlec DMM1050 Arlec YF1030C • Prepare the following as test originals: 1. ensure the correct clearance. using a thickness gauge. NTC (new test chart) 2. Never substitute simple wire or similar for thermostats since the copier may be seriously damaged.195 3-3-1 Precautions for assembly and disassembly ( 1 ) Precautions • Be sure to turn the main switch off and disconnect the power plug before starting disassembly. • Do not touch any PCB containing IC’s with bare hands or any object prone to static charge. • Use only the specified parts to replace the fixing unit or optical section thermostats. NPTC (newspaper test chart) 3. if specified. When installing a thermostat. Lever Paper feed clutch Figure 3-3-1 4. Detach the rear cover. 3. Detach the drawer. Release the lever of the paper feed clutch with a straight screwdriver in the direction of the arrow. Procedure 1. 2. Turn the paper feed shaft to an angle of 180 degrees where paper feed pulleys A and B can be seen.195 3-3-2 Paper feed section ( 1 ) Detaching and refitting paper feed pulleys A and B Clean or replace paper feed pulleys A or B as follows. Paper feed pulley B Paper feed pulley A Paper feed pulley B Figure 3-3-2 3-3-2 . be sure that the white film surfaces are facing the machine front. Remove the paper feed pulley unit: push it toward the machine rear and pull it out of the bushing toward the machine front. Clean or replace paper feed pulleys A and B. Remove each screw and then paper feed pulleys A and B from the paper feed pulley unit.195 5. Paper feed pulley B Paper feed pulley A Paper feed pulley B Figure 3-3-4 7. 8. When installing a new pulley. 3-3-3 . Refit all the removed parts. 2 1 Bushing Paper feed pulley unit Figure 3-3-3 6. right. Remove the E-ring holding the release unit shaft and detach the unit in the direction of the arrow in the figure. front left and front right covers. 3-3-4 . 4. Open the front cover and take the toner cartridge out of the copier. Replace the feedshift films by aligning their edges with the line a shown in the figure. Remove the left. Procedure 1. Release unit E-ring Figure 3-3-5 5. 3.195 ( 2 ) Replacing the feedshift films Replace the feedshift films as follows. Feedshift films a Figure 3-3-6 6. 2. Unlock the developing unit release lever and remove the developing unit and drum unit. Refit all the removed parts. 195 3-3-5 . and reducing it makes the timing later. End Original Copy example 1 Copy example 2 Figure 3-3-7 3-3-6 .195 B Yes A Setting range: 89 to 249 Reference: 108 for 100% copy 121 for enlargement copy 91 for reduction copy Change per step: 0.12 mm Increasing the value makes the timing of the second paper feed earlier. Exit simulation mode. Adjust another mode? No Press the stop/clear key. Select the mode to be adjusted with the copy exposure adjustment keys. 54 Important: Before starting this adjustment. Mode 1: 100% copy Mode 2: enlargement (141%) copy Mode 3: reduction (70%) copy Press the print key. The new setting is stored. ensure the above simulations have been completed. Place an A4/81/2" × 11" sheet on the contact glass with the original holder open (see Figure 3-3-8). Test copy mode is set. The current setting is displayed. Press the zoom input/enter key.195 (3-2) Adjusting the leading edge margin Adjust the leading edge margin as follows if it is not within the specified range. No. Is leading edge margin A within the specified range*1? Yes No Change the setting with the zoomup/down key. Enter 54 with the numeric keys. 58 (page 3-3-5) No. *1 Specified setting 3 mm for 100% copy 4. Procedure Start Enter simulation mode.5 mm for enlargement copy 3 mm for reduction copy B A 3-3-7 . Press the print key and make a test copy. Press the print key. and reducing it makes the margin narrower. Exit simulation mode.12 mm Increasing the value makes the margin wider. Adjust another mode? No Press the stop/clear key. Figure 3-3-9 3-3-8 .195 B Yes A Setting range: 25 to 167 References: 131 for 100% copy 140 for enlargement copy 127 for reduction copy Change per step: 0. End Contact glass A4/81/2" × 11" sheet Figure 3-3-8 A A: Use a scale to measure accurately. 54 (page 3-3-7) No. Test copy mode is set. 58 (page 3-3-5) No. No. 57 Important: Before starting this adjustment. Press the print key to make a test copy. Enter 57 with the numeric keys. The new setting is stored. Procedure Start Enter simulation mode. Place the maximum size of sheet on the contact glass with the original holder open (see Figure 3-310). ensure the above simulations have been completed. Press the print key. The current setting is displayed. Press the print key. *1 Setting range: 5 mm ± 3 mm (inch specs) 15 mm ± 3 mm (metric specs) A 3-3-9 .195 (3-3) Adjusting the trailing edge blank cut timing Adjust the trailing edge blank cut timing as follows if the trailing edge margin is not 5 ± 3 mm (inch specs) or 15 ± 3 mm (metric specs). Press the zoom input/enter key. Is the trailing edge margin within the setting range?*1 Yes No Change the setting with the zoomup/down key. and decreasing it makes the margin narrower.195 A Press the stop/clear key. Setting range: 0 to 84 Reference: 84 Change per step: 0. Exit simulation mode. End Copy paper (maximum size) Contact glass Figure 3-3-10 A A: Use a scale to measure accurately Figure 3-3-11 3-3-10 .12 mm Increasing the value makes the margin wider. 54 (page 3-3-7) No. Press the zoom input/enter key. 59 Important: Before starting this adjustment. Procedure Start Enter simulation mode. Press the print key to make a test copy. Press the print key. Is the trailing edge margin A 0 mm? Yes No Change the setting with the zoomup/down keys A 3-3-11 . 57 (page 3-3-9) No. No. Enter 59 with the numeric keys. Press the print key. Test copy mode is set. The new setting is stored. 58 (page 3-3-5) No. Place an A4/81/2" × 11" sheet on the contact glass with the original holder open (see Figure 3-3-12). ensure the above simulations have been completed.195 (3-4) Adjusting the trailing edge margin Adjust the trailing edge margin as follows if it is not 0 mm. The current setting is displayed. and decreasing it makes the margin narrower.2 mm Increasing the value makes the margin wider.195 A Press the stop/clear key. End A4/81/2" × 11" sheet Contact glass Figure 3-3-12 A A: Use a scale to measure accurately. Figure 3-3-13 3-3-12 . Exit simulation mode. Setting range: 10 to 110 Reference: 95 Change per step: 0. Precautions • Use the specified tungsten wire for the charger wire. • Keep the charger wire taut by ensuring that the charger spring is under tension. • The part of the wire wrapped around the charger spring must not protrude from the charger housing. 3. Remove the screw and main charger retainer. Procedure 1. • Use a clean. 2. Unlock the developing unit release lever and remove the developing unit and drum unit. Main charger retainer Screw Figure 3-3-14 3-3-13 . Caution: Do not use organic solvents such as alcohol or thinner to clean the main charger. undamaged tungsten charger wire. • The cut end of the charger wire must not protrude more than 2 mm from under the charger wire retainer pin. Open the front cover and take the toner cartridge out of the copier.195 3-3-3 Main charging section ( 1 ) Replacing the charger wire Take the following procedure when the charger wire is broken or to be replaced. • Clean the main charger shield first with a damp cloth and then with a dry cloth when replacing the charger wire. Main charger terminal 2 mm or less Charger spring Charger wire Figure 3-3-16 3-3-14 .195 4. Remove the charger wire retainer pin and charger spring. 6. Remove the main charger front and rear lids with a straight screwdriver. Charger spring Main charger rear lid Charger wire Main charger front lid Charger wire retainer pin Figure 3-3-15 7. • The length of the cut wire must be less than 2 mm. 8. Hook the other end of the charger spring onto the main charger terminal of the main charger rear housing. then the charger wire. Remove the main charger. Wind the new tungsten wire at least five turns around one end of the charger spring. 5. Cut off the excess wire under the retainer pin so less than 2 mm protrudes. 2 mm or less Charger wire Charger wire retainer pin Figure 3-3-18 12. 3-3-15 . Run the wire through the notch in the main charger front and rear housing and pull it tight so that the distance from the end of the charger spring to the notch in the main charger rear housing is between 7 and 9 mm. Charger spring Notch 7 to 9 mm Figure 3-3-17 10.195 9. Insert the retainer pin into the main charger front housing to fix the charger wire 11. 13. Refit all the removed parts. • Ensure that the larger lid is refit to the front housing and smaller lid to the rear housing. Refit the front and rear lids to the main charger. 4. • When replacing the halogen lamp. Remove the rear and right covers. then the contact glass. 3. Remove the halogen lamp from the cutout in the copier rear. ensure that the projection of the lamp is facing up so that it does not come in contact with the other parts such as the reflectors. Move light source unit 1 to the cutout in the copier rear. • When removing the lamp. Lamp terminal Halogen lamp Figure 3-3-19 5. 3-3-16 . 6. Procedure 1.195 3-3-4 Exposure section ( 1 ) Detaching and refitting the halogen lamp Clean or replace the halogen lamp as follows. 2. Clean or replace the halogen lamp. Refit all the removed parts. Press the lamp terminal at the copier rear in the direction of the arrow and remove it from the halogen lamp. touch only the ceramic parts. Refit all the removed parts.195 ( 2 ) Detaching and refitting the optical section thermostat Check or replace the optical section thermostat as follows. 3-3-17 . Check for continuity across the terminals using a tester. the copier will be seriously damaged. Do not substitute a simple wire or similar. 2. remove the two screws and then the optical thermostat. Remove the right cover. If none. Remove the fast-on terminals of the optical section thermostat. and fit a new thermostat. Procedure 1. 3. then the contact glass. otherwise. Optical section thermostat Fast-on terminals Figure 3-3-20 5. 4. Caution: Use the specified thermostat for replacement. Adjust the positions of the light adjusters. • Before starting this adjustment.195 ( 3 ) Adjusting the positions of the light adjusters Perform the following adjustment after refitting or replacing the light adjusters. Procedure Start Make a test copy at 100% with the maximum size of copy paper. • If the copy image is not correct on the machine rear. • Moving an adjuster to the machine right (e) makes the copy image darker. or if the copy image is abnormally light or dark on one side. adjust the light adjuster on the machine rear. and moving it to the machine left (a) makes the copy image lighter. Is the copy image correct? No Yes End • If the copy image is not correct on the machine front. adjust the light adjuster on the machine front. Light adjusters Figure 3-3-21 3-3-18 . be sure that the main and transfer charges. mirrors and dust filter are not stained with toner. 3. Remove the rear. Important: After replacing a scanner wire. Connector Clamp Scanner feed wire Figure 3-3-22 4. proceed to “( 5 ) Adjusting longitudinal image squareness” (see page 3-3-30) and “( 7 ) Making fine adjustment to image focus” (see page 3-3-32). Remove the front left and front right covers. Remove the scanner feed wire from the feed wire guide. then the operation unit. (4-1) Detaching the scanner wires Procedure 1. Feed wire guide Scanner feed wire Figure 3-3-23 3-3-19 . right and left covers. then the contact glass. Remove the screw holding the scanner feed wire and remove the feed wire connector. 2.195 ( 4 ) Detaching and refitting the scanner wires Perform the following steps when a scanner wire is broken or to be replaced. Light source unit 1 Wire retainers Figure 3-3-24 7. 3-3-20 . Remove light source unit 1 from the copier. Unhook the springs on the ends of each scanner wire and remove the scanner wires from each pulley. 6. Remove each two screws and then the wire retainers on the front and rear of light source unit 1.195 5. Remove the eight screws and then the upper left reinforcement plate from the copier. 2. Upper leftreinforcement plate Figure 3-3-25 3-3-21 . Take the fixing unit out of the copier (see page 3-3-62).195 (4-2) Installing the scanner wires Required installation jig • Scanner wire drum clips (P/N 75700330) Procedure 1. Scanner motor Scanner motor mount Figure 3-3-26 4. bushing and the four screws. and then detach the scanner motor mount from the copier. Remove the two screws and then the scanner motor from the scanner motor mount. Remove the E-ring.195 3. E-ring Bushing Scanner motor mount Figure 3-3-27 3-3-22 . Remove the screw and then scanner drive gear 64 from the copier. Remove the E-ring and bushing on the copier front. Scanner wire drum A Bushing E-ring Figure 3-3-29 3-3-23 .195 5. Scanner drive gear 64 Figure 3-3-28 6. and then detach scanner wire drum A from the copier. Numbers in circles correspond with those in Figure 3-3-30.195 7. 2 Run the shorter end of the scanner wire six times around the drum toward the machine outside. Machine left 2 Shorter end 4 1 3 turns Scanner wire drum clip Machine front Machine rear 6 turns Scanner wire drum A Longer end 3 Machine right Figure 3-3-30 3-3-24 . 1 Holding the scanner wire by the ball furthest from an end. 4 Hold the scanner wire in place with the scanner wire drum clip. 3 Run the longer end of the wire three times around the drum toward the machine inside. Fit a new scanner wire to scanner wire drum A (on the machine front) as follows. insert the ball into the hole in scanner wire drum A. with that longer end on the right side of the machine and the other end on the left. insert the ball into the hole in scanner wire drum A.195 8. 3 Run the longer end of the wire three times around the drum toward the machine inside. Machine left 2 Shorter end Scanner wire drum clip 4 3 turns 1 Machine rear Machine front 6 turns Scanner wire drum A Longer end 3 Machine right Figure 3-3-31 3-3-25 . Numbers in circles correspond with those in Figure 3-3-31. 1 Holding the scanner wire with the ball furthest from an end. with that longer end from the ball on the right side of the machine and the other end on the left. 4 Hold the scanner wire in place with the scanner wire drum clip. 2 Run the shorter end of the scanner wire six times around the drum toward the machine outside. Install the new scanner wire to the scanner wire drum A (on the machine rear) as follows. 195 9. the bushing. Refit the scanner wire drum A to the copier. Remove the two screws holding the optical fan motor. 10. Screws Optical section fan motor Figure 3-3-32 12. scanner motor mount and upper left reinforcement plate. Move light source unit 2 to the copier center and hold it with the two screws removed from the optical section fan motor. Refit scanner drive gear 64. Screw Light source unit 2 Screw Figure 3-3-33 3-3-26 . 11. 195 13. 1 Loop the shorter end of the scanner wire around the inner groove in the pulley on the left side of the machine from bottom to top. 5 Loop the longer end of the wire around the inner groove in the pulley of the upper right side of the machine from bottom to top. 9 Run the wire another two turns around the drum. 4 Hook the spring on the end of the wire temporarily onto its holder on the right side of the machine. 3 Loop the wire around the inner groove in the pulley in the center of the machine from top to bottom. 7 Loop the wire around the inner groove in the pulley of the lower right of the machine from top to bottom. 8 Run the wire twice toward the inside of scanner wire drum B and insert the ball into the hole in the drum. 2 Loop the wire around the outer groove in the pulley of light source unit 2 from top to bottom. Route the scanner wire on the machine front around each pulley as follows. Numbers in circles correspond with those in Figure 3-3-34. 0 Unhook the spring from its holder in step 4 and hook the two springs together. 1 Inner a c 2 Outer 6 Inner 3 Inner 4 5 Inner 8 2 turns b 0 7 Inner 9 2 turns Figure 3-3-34 3-3-27 . 6 Loop the wire around the inner groove in the pulley of light source unit 2 from top to bottom and then thread wire c between wires a and b from top to bottom. 5 Loop the longer end of the wire around the inner groove in the pulley of the upper right side of the machine from bottom to top. and then thread wire c between wires a and b from top to bottom. 1 Inner Inner 6 2 Outer c a 3 Inner b 4 0 2 turns 8 5 Inner 9 2 turns 7 Inner Figure 3-3-35 3-3-28 . 0 Unhook the spring from its holder in step 4 and hook the two springs together. 1 Loop the shorter end of the scanner wire around the inner groove in the pulley on the left side of the machine from bottom to top.195 14. 2 Loop the wire around the outer groove in the pulley of light source unit 2 from top to bottom. 7 Loop the wire around the inner groove in the pulley of the lower right of the machine from top to bottom. 4 Hook the spring on the end of the wire temporarily onto its holder on the right side of the machine. 9 Run the wire another two turns around the drum. Numbers in circles correspond with those in Figure 3-3-35. Route the scanner wire on the machine rear around each pulley as follows. 6 Loop the wire around the inner groove in the pulley of light source unit 2 from top to bottom. 3 Loop the wire around the inner groove in the pulley in the center of the machine from top to bottom. 8 Run the wire twice toward the inside of scanner wire drum B and insert the ball into the hole in the drum. • When mounting. Turn scanner wire drum A and move light source unit 2 all the way toward the machine right. ensure that the scanner wire on the top is above light source unit 1. Move light source unit 1 all the way toward the machine right and refit the wire retainers. 3-3-29 . Remove the front and rear scanner wire drum clips from scanner wire drum A. Refit all the removed parts. Remove the screw holding light source unit 2 and refit the optical section fan motor. 18.195 15. Perform “( 5 ) Adjusting longitudinal image squareness” (see 3-3-30) and “( 7 ) Making fine adjustment to image focus” (see 3-3-32). 22. 16. 23. Mount light source unit 1 onto the front and rear scanner rails. Upper right reinforcement plate Screw Scanner wire drum B Figure 3-3-36 19. 20. Run the scanner feed wire along the feed wire guide and refit it to the connector on the machine rear. Turn scanner wire drum B until the screw on the front side of the drum can be seen through the cutout in the upper right reinforcement plate. 21. 17. Refit the clamp to hold the scanner feed wire. • Be sure that the scanner feed wire is not twisted. Adjust the inclination by loosening the adjustment screw on scanner wire drum B and then turning the drum. • To correct an image as in copy example 2. turn scanner wire drum B in the direction of the black arrow ( a). Is the copy image correct? No Yes End Original Copy example 1 Copy example 2 Figure 3-3-37 • To correct an image as in copy example 1. Procedure Start Make a test copy with an A4/81/2" × 11" sheet. Scanner wire drum B Adjustment screw Figure 3-3-38 3-3-30 . or if the copy image is longitudinally skewed (longitudinal squareness is not obtained). Tighten the adjustment screw on the scanner wire drum. turn scanner wire drum B in the direction of the white arrow ( e).195 ( 5 ) Adjusting longitudinal image squareness (inclination of light source 2) Make the following adjustment after replacing the scanner wires. • To correct an image as in copy example 2. turn the adjustment screw counterclockwise. Procedure Start Make a test copy with an A4/81/2" × 11" sheet. Loosen the two screws holding the mirror frame adjustment plate. Adjustment screw Light source 2 Screws Mirror frame adjustment plate Figure 3-3-40 3-3-31 . Tighten the two screws of the mirror frame adjustment plate. Important: Paint-lock the adjustment screw of light source 1 after adjustment.195 ( 6 ) Adjusting lateral image squareness (height of light source 2) Make the following adjustment if the copy image is laterally skewed (lateral squareness is not obtained). turn the adjustment screw clockwise. Adjust the height of light source unit 2 by turning its adjustment screw. Is the copy image in focus? No Yes End Original Copy example 1 Copy example 2 Figure 3-3-39 • To correct an image as in copy example 1. 195 ( 7 ) Making fine adjustment to image focus Perform the following adjustment after replacing the optical wires. Mode setting procedure Start Check that exposure is correctly set in “( 8 ) Setting the exposure amount”. or if the entire copy image is out of focus. Run simulation “(7-1) Adjusting the mirror home position for 100% copying”. Run simulation “(7-3) Adjusting the mirror home position for reduction mode”. End 3-3-32 . Run simulation “(7-2) Adjusting the mirror home position for enlargement mode”. Press the print key. Enter 25 with the numeric keys. Place the NTC on the contact glass and A4/81/2" × 11" copy paper. A 3-3-33 . Select the mode to be adjusted and change the setting to 0. Select the mode to be adjusted and change the setting to 0 for modes 1 to 4 and 32 for modes 5 and 6 with the zoom up/down keys. Press the print key. Select mode 6 with the copy expo· · · · · · · The current setting is displayed.195 (7-1) Adjusting the mirror home position for 100% copying Procedure Start Enter simulation mode. Press the stop/clear key. Enter 27 with the numeric keys. sure adjustment keys. No Change the setting with the zoom up/down keys. Is the copy image in focus? Yes Press the stop/clear key.195 A Press the print key. Press the zoom input/enter key. The new setting is stored. Press the print key to make a test copy. End 3-3-34 . · · · · · · · Test copy mode is set. Setting range: 0 to 63 Reference: 32 Exit simulation mode. Press the print key. Enter 27 with the numeric keys. Press the print key to make a test copy at 141%.195 (7-2) Adjusting the mirror home position for enlargement mode Procedure Start Enter simulation mode. End 3-3-35 . The new setting is stored. Place the NTC on the contact glass and A4/81/2" × 11" copy paper. Press the zoom input/enter key. Is the copy image in focus? No Change the setting with the zoom up/down keys. Select mode 3 with the copy expo· · · · · · · The current setting is displayed. Press the print key. sure adjustment keys. Exit simulation mode. Setting range: –8 to 8 Reference: 0 Yes Press the stop/clear key. · · · · · · · Test copy mode is set. Select mode 4 with the copy expo· · · · · · · The current setting is displayed. Is the copy image in focus? No Change the setting with the zoom up/down keys. Place the NTC on the contact glass and A4/81/2" × 11" copy paper. Press the zoom input/enter key. sure adjustment keys. · · · · · · · Test copy mode is set. End 3-3-36 . Press the print key. Enter 27 with the numeric keys. Press the print key. Setting range: –8 to 8 Reference: 0 Yes Press the stop/clear key.195 (7-3) Adjusting the mirror home position for reduction mode Procedure Start Enter simulation mode. Exit simulation mode. The new setting is stored. Press the print key to make a test copy at 70%. • Never touch controls VR1. 1). • Clean the optical system. +2). • Check that the halogen lamp has not deteriorated. 4). End 3-3-37 . Mode setting procedure Start Select mode 1 (manual Exp.195 ( 8 ) Setting the exposure amount Perform the following adjustment when the drum is replaced. Select mode 3 (manual Exp. Precautions • Check that the developer density is correct. VR2 or VR3 on the AVR PCB. Select mode 2 (manual Exp. Press the print key. The new setting is stored. Press the print key to make a test copy at Exp. · · · · · · · The current setting is displayed. Press the zoom input/enter key. Press the print key. A 3-3-38 . and decreasing it makes the image darker. Enter 24 with the numeric keys. Setting range: 20 to 100 Reference: 62 Is the image abnormally light? No Yes Decrease the setting with the zoom-down key. Increasing the value makes the image lighter. Is the image abnormally dark? No Yes Increase the setting with the zoom-up key. 4.195 Procedure Start Enter simulation mode. Place the NTC on the contact glass and select mode 1 with the copy exposure adjustment keys. · · · · · · · Test copy mode is set. Press the print key. ment keys. Press the print key to make a test copy at Exp. Press the zoom input/enter key. 1. and decreasing it makes the image darker. Setting range: –40 to 0 Reference: –18 Is the image abnormally light? No Yes Decrease the setting with the zoom-down key. Increasing the value makes the image lighter. B 3-3-39 . The new setting is stored.195 A Place the blue graph paper on the contact glass and select mode 2 · · · · · · · The difference from the setting in with the copy exposure adjustmode 1 (Exp. Is the image abnormally dark? No Yes Increase the setting with the zoom-up key. · · · · · · · Test copy mode is set. 4) is displayed. · · · · · · · Test copy mode is set. Increasing the value makes the image lighter. Yes Increase the setting with the zoom-up key. +2. · · · · · · · The difference from the setting in mode 1 (Exp.195 B Place the NPTC on the contact glass and select mode 3 with the copy exposure adjustment keys. 4) is displayed. Press the print key. Press the zoom input/enter key. Press the print key to make a test copy at Exp. The new setting is stored. and decreasing it makes the image darker. Setting rage: 0 to 50 Reference: 30 Is the image abnormally light? No Yes Decrease the setting with the zoom-down key. Exit simulation mode. Is the image abnormally dark? No Press the stop/clear key. End 3-3-40 . Select mode 1 with the exposure adjustment keys. Place five sheets of A4/81/2" × 11" plain white paper on the contact glass.195-1 195 ( 9 ) Adjusting the auto exposure Procedure Start Check that exposure is correctly set in “( 8 ) Setting the exposure amount”. End *1 When the AE sensor or exposure lamp is broken. Prescan is performed repeatedly until the output level stabilizes at around the reference. Enter simulation mode. 3-3-41 . Press the copy size key to start prescanning. Select mode 2 with the exposure adjustment keys. Enter 28 with the numeric keys. Prescan then stops automatically.*1 Press the stop/clear key. Place the NTC on the contact glass. Press the copy size key to start prescanning. prescanning is repeated until the stop/clear key is pressed. Select mode 3 with the exposure adjustment keys. Exit simulation mode. Press the copy size key. Place the NPTC on the contact glass. Press the print key. Mode setting procedure Start Check that exposure is correctly set in “( 8 ) Setting exposure amount”.195 (10) Adjusting exposure amount for enlargement/reduction mode Make the following adjustment when replacing the main PCB or drum. Perform “(10-2) Adjusting exposure amount for reduction mode”. End 3-3-42 . Perform “(10-1) Adjusting exposure amount for enlargement mode”. and decreasing it makes the image darker. Is the copy image abnormally dark? No Press the stop/clear key. End 3-3-43 . Setting range: –20 to 20 Reference: 0 Increasing the value makes the image lighter. Enter 29 with the numeric keys. Select mode 1 with the exposure adjustment keys. Place the NTC on the contact glass and A4/81/2" × 11" copy paper. Exit simulation mode. · · · · · · · Test copy mode is set. The new setting is stored. Press the print key. Press the zoom input/enter key. Press the print key. Yes Increase the setting with the zoom-up key. Press the print key to make a test copy at 141%.195 (10-1) Adjusting exposure amount for enlargement mode (141%) Procedure Start Enter simulation mode. Is the copy image abnormally light? No Yes Decrease the setting with the zoom-down key. · · · · · · · The difference from the setting in simulation 24-1 is displayed. 195 (10-2) Adjusting exposure amount for reduction mode (70%) Procedure Start Enter simulation mode. Is the copy image abnormally light? No Yes Decrease the setting with the zoom-down key. Is the copy image abnormally dark? No Press the stop/clear key. Press the print key. · · · · · · · The difference from the setting in simulation 24-1 is displayed. Select mode 2 with the exposure adjustment keys. Place the NTC on the contact glass and A4/81/2" × 11" copy paper. Press the print key to make a test copy at 70%. · · · · · · · Test copy mode is set. End 3-3-44 . Exit simulation mode. Yes Increase the setting with the zoom-up key. Press the print key. Setting range: –20 to 20 Reference: 0 Increasing the value makes the image lighter. and decreasing it makes the image darker. Press the zoom input/enter key. Enter 29 with the numeric keys. The new setting is stored. End 3-3-45 . Mode setting procedure Start Check that exposure is set correctly in “( 8 ) Setting exposure amount”. Perform “(11-3) Correcting the lens travel distance for reduction copying”. Perform “(11-2) Correcting the lens travel distance for enlargement copying”.195 (11) Adjusting lateral magnification (correcting the lens travel distance) Make the following adjustment if the lateral magnification is not correct. Perform “(11-1) Correcting the lens travel distance for 100% copying”. · · · · · · · The current setting is displayed. Press the print key.195 (11-1) Correcting the lens travel distance for 100% copying Procedure Start Enter simulation mode. The new setting is stored. Press the print key. Exit simulation mode. Is the copy image too narrow? No Press the stop/clear key. Setting range: –20 to 20 Reference: 0 Change per step: 0. Enter 25 with the numeric keys. Press the zoom input/enter key. Is the copy image too wide? No Yes Decrease the setting with zoomdown key. and decreasing it makes the image narrower. Select mode 1 with the exposure adjustment keys. Press the print key to make a test copy. Place the NTC on the contact glass and A4/81/2" × 11" copy paper. Yes Increase the setting with zoom-up key. End 3-3-46 . · · · · · · · Test copy mode is set.1% Increasing the value makes the wider. Place the NTC on the contact glass and A4/81/2" × 11" copy paper. Press the print key to make a test copy at 141%. End 3-3-47 . Press the print key. Press the zoom input/enter key. The new setting is stored. Select mode 2 with the exposure adjustment keys. Is the copy image too wide? No Yes Decrease the setting with zoomdown key. · · · · · · · The current setting is displayed. Press the print key.1% Increasing the value makes the image wider.195 (11-2) Correcting the lens travel distance for enlargement copying Procedure Start Enter simulation mode. Enter 25 with the numeric keys. and decreasing it makes the image narrower. Setting range: –20 to 20 Reference: 0 Change per step: 0. Yes Increase the setting with zoom-up key. · · · · · · · Test copy mode is set. Is the copy image too narrow? No Press the stop/clear key. Exit simulation mode. Place the NTC on the contact glass and A4/81/2" × 11" copy paper. and decreasing it makes the image narrower. · · · · · · · The current setting is displayed. Select mode 3 with the exposure adjustment keys. · · · · · · · Test copy mode is set. End 3-3-48 . Yes Increase the setting with zoom-up key. Setting range: –20 to 20 Reference: 0 Change per step: 0. Press the print key. Exit simulation mode. The new setting is stored. Is the copy image too wide? No Yes Decrease the setting with zoomdown key. Press the zoom input/enter key. Enter 25 with the numeric keys.1% Increasing the value makes the image wider. Press the print key to make a test copy at 70%. Is the copy image too narrow? No Press the stop/clear key.195 (11-3) Correcting the lens travel distance for reduction copying Procedure Start Enter simulation mode. Press the print key. Procedure Start Enter simulation mode. Press the print key. Exit simulation mode. Press the print key. Yes Increase the setting with zoom-up key. Press the print key to make a test copy. Enter 26 with the numeric keys. The new setting is stored. and decreasing it makes the image shorter.2% Increasing the value makes the image longer. Is the copy image too long? No Yes Decrease the setting with zoomdown key. · · · · · · · Test copy mode is set. Setting range: 1 to 20 Reference: 13 Change per step: 0. · · · · · · · The current setting is displayed. Place the NTC on the contact glass and A4/81/2" × 11" copy paper. End 3-3-49 .195 (12) Adjusting longitudinal magnification (scanning speed) Perform the following adjustment if the longitudinal magnification is not correct. Is the copy image too short? No Press the stop/clear key. Press the zoom input/enter key. Precautions • Avoid direct sunlight and strong light when detaching and refitting the drum. 2. Detach the drum from the drum unit. 4. Unlock the developing unit release lever and detach the developing unit and drum unit. keep it in the drum case or storage bag to protect the surface from light. 3. Remove the screw and then the drum pin from the drum unit. Drum unit Drum shaft Bushing Drum Drum pin Figure 3-3-41 3-3-50 . Remove the bushing from the drum and pull out the drum shaft. • Hold the drum at the ends and never touch the drum surface. Procedure 1. Open the front cover and take the toner cartridge out of the copier. • After removing the drum. 5.195 3-3-5 Drum section (metric specification only) ( 1 ) Detaching and refitting the drum Perform the following steps when cleaning or replacing the drum. 195 6. • When refitting the drum pin. Refit all the removed parts. Replace the drum. 7. 3-3-51 . ensure that it is inserted correctly into the drum shaft so that the D-cut part of the pin corresponds with that of drum shaft. Polishing cloth Drum Figure 3-3-42 3-3-52 . 4. Precautions • Avoid direct sunlight and strong light when cleaning the drum.195 ( 2 ) Cleaning the drum Clean the drum as follows when an image problem occurs. 6. Refit all the removed parts and let the copier stand for 30 minutes. Avoid working in dusty place. thinner or other organic solvent. Apply a polishing cloth to the drum and gently wipe the drum taking care not to damage the surface. 2. 5. • Clean the drum entirely even if it is only dirty locally. Required supplies • Polishing cloth: specified synthetic cotton • Toner Procedure 1. Refit the drum. 3. • Do not clean the drum with alcohol. Detach the drum (see page 3-3-50). Apply toner to another cloth and wipe the drum surface with it in the same manner. or if the drum is dirty. • Dust in the air and from the cleaning pad may damage the drum during operation. Make a test copy and check the image. 195 3-3-6 Developing section (metric specification only) ( 1 ) Replacing developer Perform the following steps when replacing developer. Unlock the developing unit release lever and detach the developing unit. 2. 3. Procedure 1. Open the front cover and take the toner cartridge out of the copier. Remove the four screws and then the developing cover from the developing unit by pulling the cover in the direction of the arrow in the figure. Important: When replacing developer. Developing unit Developing unit cover Figure 3-3-43 3-3-53 . place the developing unit on a level surface. 195 4. Press the print key. Enter 60 with the copy quantity/zoom-up or -down keys and press the print key. Pour the new developer evenly into the developing unit while turning the gear in the direction of the arrow in the figure. Gear Developing unit Figure 3-3-44 7. 3-3-54 . 6. Refit all the removed parts. 12. 8. 13. 5. Shake the new developer bottle well to agitate the developer. Enter 01 with the copy quantity/zoom-up or -down keys and press the print key to exit the simulation mode. 9. 10. 11. Remove the old developer from the developing unit. Turn the main switch on while pressing the print key and stop/clear key. press the stop/clear key to enter simulation mode. The toner control voltage is set automatically. 2 s or less after “ ” is shown on the copy quantity/magnification display. Press the stop/clear key. 3-3-54-1 3-3-55 . Developing roller retainer Screw A A:12.5 mm Developing roller shaft Figure 3-3-44-2 5. Make a test copy and check the copy image. Procedure 1. Loosen the screw holding the developing roller retainer. Refit the removed parts. 3. 6.5 mm (reference value).195-1 195 ( 2 ) Adjusting the formation position of the magnetic brush (reference) Check or adjust when the image density is too light or a background is visible. Adjust the developing roller shaft using a scale so that the distance between the top of the magnetic brush and the bottom of the developing unit housing is 12. Developing unit Developing unit terminal cover Figure 3-3-44-1 4. Remove the developing unit terminal cover from the developing unit (two screws). Open the front cover and remove the toner cartridge. Note: Check if the amount of the developer is correct before the adjustment. 2. Unlock the developing unit release lever and remove the developing unit. Be sure to turn VR DB only when absolutely necessary. Adjustment tools • Tester Procedure Start Tester Ground VR DB With the developing unit removed from the machine. * If the developing bias is set above the reference level.195 195-1 ( 3 ) Adjusting developing bias voltage (reference) Make the following adjustment if VR DB on the high voltage PCB has been accidentally turned. DB terminal Figure 3-3-44-3 Adjusting developing bias Enter the simulation mode. connect the tester positive terminal to the purple DB terminal of the high voltage PCB and the negative one to ground (an uncoated area on the frame). Run simulation 33. End 3-3-54-2 3-3-56 . Exit the simulation mode. turn it counterclockwise (a ) to decrease it*. Is the developing bias correct (reference value: 270 V)? Yes Press stop/clear. a dark background shows. No Turn VR DB on the high voltage PCB clockwise (e ) to increase the voltage. if it is below the reference level. Turn the main switch off and disconnect the tester terminals. the copy image is too light. • The part of the wire wrapped around the charger spring must not protrude from the charger housing. thinner or other organic solvent. Open the release unit. undamaged tungsten charger wire. Loosen the pins on the front and rear of the release unit. Pin Release unit Pin Figure 3-3-45 3-3-57 3-3-55 .195 3-3-7 Transfer section ( 1 ) Replacing the charger wires Perform the following steps when the transfer charger wire is broken or is to be replaced. Procedure 1. Caution: Do not clean the transfer charger shield with alcohol. • Keep the charger wire taut by ensuring the charger spring is under tension. • Clean the transfer charger shield first with a damp cloth and then with a dry cloth when replacing the charger wire. • Use a clean. 2. • The cut end of the charger wire must not protrude more than 2 mm from under the charger wire retainer pin. Precautions • Use the specified tungsten wire for the charger wire. 7. Connector Transfer unit Figure 3-3-46 4. Remove the transfer charger front and rear transfer lids with a straight screwdriver. 5. then the charger wire. Remove the three screws and then the pre-transfer guide from the transfer unit. Remove the connector of the transfer unit and detach the unit. Remove the screw holding each of the front and rear transfer stoppers and then detach the stoppers from the transfer unit. 6. Remove the charger wire retainer pin and charger spring.195 3. Transfer charger rear lid Charger spring Pre-transfer guide Charger wire Transfer charger rear stopper Transfer charger front lid Charger wire retainer pin Transfer unit Transfer charger front stopper Figure 3-3-47 3-3-58 3-3-56 . 195 8. Wind the new tungsten wire at least five turns around one end of the charger spring. Run the wire through the notch in the charger wire retainer pin and pull it tight so that the distance from the end of the charger spring to the notch in the main charger rear housing is between 6 and 8 mm. • The length of the cut wire must be less than 2 mm. Hook the other end of the charger spring to the transfer charger terminal of the transfer charger rear housing. Transfer charger terminal Charger spring Charger wire 2 mm or less Figure 3-3-48 10. 9. Charger wire 6 to 8 mm Notch Figure 3-3-49 3-3-59 3-3-57 . Press the retainer pin into the projection of the main charger front housing. Cut off the excess wire under the retainer pin so less than 2 mm protrudes. 12. so holding the charger wire with it. Charger wire Charger wire retainer pin 2 mm or less Figure 3-3-50 13. • Ensure that the larger lid is refitted to the front housing and smaller lid to the rear housing. Refit all the removed parts. Refit the front and rear lids to the transfer charger. 14. 3-3-60 3-3-58 .195 11. Procedure 1.195 3-3-8 Cleaning section (metric specification only) ( 1 ) Replacing the cleaning blade Replace the cleaning blade as follows. Detach the drum from the drum unit (see page 3-3-50). 2. Unlock the developing unit release lever and detach the developing unit and drum unit. Open the front cover and take the toner cartridge out of the copier. Upper cleaning cover Drum unit Figure 3-3-51 3-3-61 3-3-59 . 4. Remove the two screws and then the upper cleaning cover from the drum unit. 3. 195 5. • When fitting the cleaning blade. Refit all the removed parts. 3-3-62 3-3-60 . Cleaning blade Drum unit Figure 3-3-52 6. 7. Replace the cleaning blade. ensure that the projections of the drum unit are seated in the positioning holes in the cleaning blade. Remove the two screws and then the cleaning upper cover from the drum unit. Unlock the developing unit release lever and detach the developing unit and drum unit. Drum unit Lower cleaning blade Figure 3-3-53 5. 3. Refit all the removed parts. ensure that the projections of the drum unit are seated in the positioning holes in the cleaning blade. Replace the cleaning blade. 4.195 ( 2 ) Detaching and refitting the lower cleaning blade Replace the lower cleaning blade as follows. 6. Open the front cover and take the toner cartridge out of the copier. • When fitting the lower cleaning blade. 3-3-63 3-3-61 . Detach the drum from the drum unit (see page 3-3-50). Remove the two screws and then the lower cleaning blade from the drum unit. Procedure 1. 2. Detach the left cover. Remove the four screws and then the fixing unit from the copier. Connectors Fixing unit Figure 3-3-54 3-3-64 3-3-62 . 3. Procedure 1. 2. Remove the four connectors of the fixing unit from the copier.195 3-3-9 Fixing section ( 1 ) Detaching and refitting the fixing heater Check or replace the fixing heater as follows. 195-1 195 4. Fixing unit cover Fixing unit Figure 3-3-56 3-3-65 3-3-63 . Fixing unit Figure 3-3-55 5. Remove the four screws and then the copy tray attachment from the fixing unit. Remove the two screws and then the fixing unit cover from the fixing unit. Remove the fixing unit connector from fixing thermostat 1 (on the copier front). Pull the fixing heater out via the front of the fixing unit.195 195-1 6. Remove the screw holding each of the front and rear heater mounts. Rear heater mount Fixing thermostat 1 Connector Front heater mount Fixing unit Figure 3-3-57 8. 9. Check or replace the fixing heater. 7. 10. and then detach them from the fixing unit. 3-3-66 3-3-64 . Refit all the removed parts. 2. clean or replace the fixing unit thermistor. 3-3-67 3-3-65 . Remove the copy tray attachment and fixing unit cover from the fixing unit (see page 3-3-63). 5. Remove the screw and then the fixing unit thermistor from the fixing unit. Refit all the removed parts. 3.195-1 195 ( 2 ) Detaching and refitting the fixing unit thermistor Check. Check. Procedure 1. Fixing unit thermistor Fixing unit Figure 3-3-58 4. clean or replace the fixing unit thermistor as follows. Take the fixing unit out of the copier (see page 3-3-62). Remove the copy tray attachment and fixing unit cover from the fixing unit (see page 3-3-63). 3. Thermostat relay wire Fixing thermostat 2 Fixing heater wire Fixing thermostat 1 Fixing heater Fixing unit Figure 3-3-59 5. Check or replace fixing thermostat 1 and 2. Caution: Use the specified thermostat for replacement. the copier will be seriously damaged. 6. • When fitting. fixing heater wire and thermostat relay wire from fixing thermostats 1 and 2. 4. otherwise. Refit all the removed parts. Do not substitute a simple wire or similar.195 195-1 ( 3 ) Detaching and refitting fixing thermostats 1 and 2 Check or replace thermostats 1 and 2 as follows. Remove the connectors of the fixing heater. 2. and install the thermostats in the correct positions. Take the fixing unit out of the copier (see page 3-3-62). Remove the two screws holding each of the fixing thermostats and then remove the thermostats from the fixing unit. 3-3-68 3-3-66 . Procedure 1. check the temperature indications on the thermostats and fixing stay. Take the fixing unit out of the copier (see page 3-3-62). Remove the copy tray attachment from the fixing unit (see page 3-3-63).195-1 195 ( 4 ) Detaching and refitting the press roller Clean or replace the press roller as follows. 2. Procedure 1. Remove the fixing unit lower housing and heat roller grounding plate from the fixing unit (two screws). Fixing unit lower housing Fixing unit Heat roller grounding plate Figure 3-3-60 3-3-69 3-3-67 . 3. Press roller Fixing entrance guide Fixing unit lower housing Figure 3-3-61 6. Remove the press roller from the fixing unit lower housing. Clean or replace the press roller. Remove the screw and then the fixing entrance guide from the fixing unit lower housing. • Press the fixing entrance guide all the way down while refitting it. 5. 3-3-70 3-3-68 .195 4. Refit all the removed parts. 7. 67).195 ( 5 ) Detaching and refitting the heat roller Clean or replace the heat roller as follows. Remove the three heat roller separation claws from the fixing unit (see page 3-371). fixing unit cover and fixing unit lower housing from the fixing unit (see page 3-3-63. Remove the E-ring and then idle gear 20 from the fixing unit. Take the fixing unit out of the copier (see page 3-3-62). Fixing unit E-ring Idle gear 20 Figure 3-3-62 3-3-71 3-3-69 . 4. 2. 3. Remove the copy tray attachment. Procedure 1. 6. Remove the heat roller stopper on the rear of the fixing unit rear. Clean or replace the heat roller. 9. 3-3-72 3-3-70 . Remove the heat roller stopper on the front of the fixing unit front and then detach the heat roller bushings. 7.195 5. then fixing gear 32 and the heat roller bushing. Refit all the removed parts. Remove the heat roller from the fixing unit. Heat roller stopper Heat roller bushing Fixing gear 32 Heat roller Heat roller bushing Heat roller stopper Figure 3-3-63 8. 5.195 ( 6 ) Detaching and refitting the heat roller separation claws Check. 2 Remove the copy tray attachment and fixing unit cover from the fixing unit (see page 3-3-63). Orient the heat roller separation claws in the direction of the arrows in the figure. clean or replace the heat roller separation claws as follows. 3-3-73 3-3-71 . Check. clean and replace the heat roller separation claws. and then detach them. Refit all the removed parts. Procedure 1. Take the fixing unit out of the copier (see page 3-3-62). Fixing unit Heat roller separation claws Figure 3-3-64 4. 3. 3. Take the fixing unit out of the copier (see page 3-3-62). Remove the copy tray attachment and fixing unit cover from the fixing unit (see page 3-3-63). Remove the fixing unit thermistor and fixing blade from the fixing unit (one screw). Procedure 1. Fixing thermistor Fixing blade Fixing unit Figure 3-3-65 4. Remove the screw and then the fixing unit thermistor from the fixing unit. clean or replace the fixing blade. cleaning or replacing the fixing blade. Check. 2. 3-3-72 3-3-74 . 5. 4. When refitting the fixing blade.195 195-1 ( 7 ) Detaching and refitting the fixing blade Perform the following procedure when checking. make sure that the blade is in contact with the heat roller. Refit all the removed parts. .... 3-4-3 .................................................................................195 3-4 PCB Initial Setting 3-4-1 Replacing the main PCB ..... 3-4-1 3-4-2 Adjustment-free variable resistors (VR) ...................... • Exposure mode • Manual exposure adjustment • Auto exposure adjustment • Auto shutoff on/off • Auto shutoff time • Auto preheat time • Preheat recovery time • Auto clear on/off • Auto clear time 2. 6. Run simulation 73 and record the maintenance count. Replace the EEPROM with the new one. 4. 3. perform the following steps. Enter simulation mode. Turn the main switch off and unplug the power cord.195 3-4-1 Replacing the main PCB After replacing the main PCB. Procedure • Before removing the old EEPROM: 1. If the new EEPROM is used. 5. remove the EEPROM from the old main PCB and fit it to the new main PCB. Record the user settings of the following items which must be reentered after replacement. 3-4-1 . Exit simulation mode. No. Run simulation 93 to select the destination. Sim. 11. Enter simulation mode. 13. Run the following simulations to check or reenter the data recorded on the simulation label. Exit simulation mode. 8. 24 25 26 27 28 29 47 54 57 58 59 62 71 73 85 89 91 92 96 98 99 Contents Setting the exposure amount Adjusting lateral magnification Adjusting longitudinal magnification Making fine adjustment to image focus Adjusting the auto exposure Adjusting exposure amount for enlargement/reduction mode Setting the fixing temperature Adjusting the leading edge margin Adjusting the trailing edge blank cut timing Adjusting the leading edge registration timing Adjusting the trailing edge margin Checking/setting the toner control voltage Checking/setting the maintenance cycle Checking/clearing the maintenance count Selecting between auto preheat on/off Setting the presence of the flicker resistor Setting operation under the toner empty condition Selecting between auto start on/off Setting the memory switch Setting the maintenance method (available in Peru only) Selecting between E2000-compliant function on/off 12. Insert the power plug and turn the main switch on. 10. Run simulation 70. Reenter the contents of the user settings recorded in step 1. 3-4-2 .195 195-1 • After installing the new EEPROM: 7. 9. VR3 • High-voltage transformer PCB: VRDB. • AVR PCB: VR1. VRDC 3-4-3 .195 3-4-2 Adjustment-free variable resistors (VR) The variable resistors listed below are set at the factory prior to shipping and cannot be adjusted in the field. VR2. ................................... 3-5-1 ...............................................195 3-5 Self-diagnostics 3-5-1 Self diagnostic function ..................... 3-5-1 ( 1 ) Self diagnostic display .............................. indicating the nature of the problem. the self-diagnostic function can be reset by opening and closing the front cover or release unit to turn the safety switch off and back on. 0 % Display alternates 21 % Figure3-5-1 Service call code display 3-5-1 .195 3-5-1 Self-diagnostic function (1) Self-diagnostic display This unit is equipped with a self-diagnostic function. After removing the problem. When it detects a problem with itself. it disables copying and displays “C” and a two digit number between 01 and 76 alternately on the copy quantity/magnification display in the operation unit. Check if CN10-2 on the main PCB goes high when the home position switch is on and goes low when the switch is off. Replace the main PCB and check for correct operation. Check for broken gears tem. data problem • Abnormal data is written on the Defective main EEPROM (IC8). replace them. If none. Defective main PCB. Check if rollers and gears rotate Defective drive transmission sys. 3-5-2 . PCB or EEPROM (IC8). If C01 persists after re-entering the backup memory contents. then run simulation 70 and re-enter the backup memory contents. Remarks Check procedures/corrective measures Turn the main switch off and on. If none.smoothly. If none. Drive motor problem • The drive motor alarm signal (DM ALM) is detected more than 2 s after the drive motor has been turned on. • The home position switch does not turn on within 7 s after the scanner motor has started reverse rotation. replace the home position switch. replace the scanner motor. C30 Scanner motor problem • The home position switch does not turn off within 5 s after the scanner motor has started forward rotation. EEPROM write problem • The copier does not enter RDY state more than 1 s after starting to write data to EEPROM (IC8). Poor contact in the connector terminals. control circuit in the drive motor. If not. If not. replace the main PCB or EEPROM (IC8). Replace the EEPROM (IC8) and check for correct operation.195 Self diagnostic codes Code C01 Contents Causes Backup memory Backup memory data problem. and replace if any. Check for continuity across the connector terminals. Check for the continuity across the scanner motor coil. grease the bushings and gears. Defective home position switch. Defective Main PCB. Poor contact in the home position switch connector terminals. Broken scanner motor coil. Check for continuity across the home position switch connector terminals. Replace the main PCB and check for correct operation. replace them. C02 C21 Defective rotation Replace the drive motor. Defective EEPROM (IC8). If not. replace the mirror motor. Lens motor problem • The lens home position switch does not turn on or off within 5 s after initial operation has started. If none. If none. Poor contact in the mirror home position switch connector terminals. Reinstall the wire. Check for continuity across the coil. Code Contents Loose screws Retighten the screws and adjust the holding the scan. replace the lens home position switch. Defective main PCB. Check procedures/corrective measures Reinstall the scanner drive belt and adjust the tension. Loose scanner wire. Replace the main PCB and check for correct operation. replace them. Defective mirror home position switch. • The home position switch does not turn on within 7 s after the scanner motor has started reverse rotation. Check if CN12-9 on the main PCB goes high when the lens home position switch is on and goes low when the switch is off. If none. ner wire retainers. Check for continuity across the coil.195 Remarks Causes C30 Scanner motor problem • The home position switch does not turn off within 5 s after the scanner motor has started forward rotation. If none. Check for continuity across the connector terminals. Check if CN12-3 on the main PCB goes high when the mirror home position switch is on and goes low when the switch is off. replace the mirror home position switch. Replace the main PCB and check for correct operation. Check for continuity across the connector terminals. Defective main PCB. Poor contact in the lens home position switch connector terminals. Defective main PCB. Loose scanner drive belt. replace the lens motor.image focus. Defective mirror motor. Replace the main PCB and check for correct operation. C42 Mirror motor problem • The mirror home position switch does not turn on or off within 4 s after initial operation has started. Defective lens home position switch. 3-5-3 . If not. replace them. C41 Defective lens motor. The transfer charger leaks. Replace the main PCB and check for correct operation. Defective highvoltage transformer PCB. If it is broken. Check the transfer charger housing. Detach the main or transfer charger assembly. Check the fixing heater and reinstall if necessary. Check the transfer charger wire visually. replace fixing unit thermostats 1 and 2. replace the high-voltage transformer PCB. Broken fixing heater filament. Fixing unit thermistor installed incorrectly. Check for continuity.06 V DC) after having reached the stabilization level. replace it. clean it. C61 Broken fixing heater filament • The fixing stabilization temperature is not reached within 60 s after fixing control has started. • The fixing temperature drops below 80° C/ 176°F (fixing unit thermistor output voltage: 1. The main charger leaks. replace it. Replace the main PCB and check for correct operation. Check the fixing unit thermistor and reinstall if necessary. If it is dirty. if C50 persists. Broken main charger wire. If none. Check procedures/corrective measures Check the charger wire visually. If it is broken. Defective main PCB. clean it. replace the fixing heater. Broken transfer charger wire. Check the main charger housing.195 Remarks Causes C50 Main/transfer high-voltage problem • The high-voltage alarm signal (HV ALM) is detected more than 2 s after the main highvoltage output has been turned on. Defective main PCB. Check for continuity. Fixing unit thermostats 1 and 2 triggered. If none. If it is dirty. Code Contents 3-5-4 . Fixing heater installed incorrectly. ternal temperature thermistor. Replace the main PCB and check for correct operation. thermistor. replace them. replace the fixing unit thermistor. Broken external Measure the resistance across the extemperature ther. If it is mistor wire.serted properly. Replace the main PCB and check for correct operation.039 V DC within 7 s after fixing control has started with the fixing temperature remaining below 100° C/212° F (fixing unit thermistor output voltage: 1. 3-5-5 . Measure the resistance. Shorted fixing unit thermistor/ abnormally high temperature • The fixing temperature exceeds 250° C/ 482° F (fixing unit thermistor output voltage: 4.71 V DC). Poor contact in the fixing unit thermistor connector terminals. Check for continuity across the connector terminals. Broken external temperature thermistor wire • The external temperature thermistor output is below 0. Check procedures/corrective measures Broken fixing unit Measure the resistance.195 Remarks Causes C63 Broken fixing unit thermistor wire • The fixing unit thermistor output voltage does not exceed 0. If it is ∞ Ω. replace the fixing unit thermistor. Defective main PCB. If it is 0 Ω. sor PCB connectors. ∞ Ω. Defective main PCB. If none. Defective main PCB. C74 Poor contact in Check that the connectors are inthe humidity sen. Replace the main PCB and check for correct operation.73 V DC). Code Contents C64 Shorted fixing unit thermistor.3 V DC. replace the humidity sensor PCB. 3 V DC. Defective main PCB. Defective developing unit fuse.195 Remarks Causes C75 Shorted external temperature thermistor • The external temperature thermistor output is above 4. replace the humidity sensor PCB. 3-5-6 . C76* Poor contact in the connector.ternal temperature thermistor. 0 Ω. Replace the main PCB and check for correct operation. Replace the developing unit fuse and check for correct operation. 220 V and 240 V specifications. If it is mistor. just before the developing unit initialization ends. Developing unit fuse problem • The developing unit fuse does not blow within 2 s of power being applied to it. Check procedures/corrective measures Code Contents Shorted external Measure the resistance across the extemperature ther. Check the contacts. * Only for 120 V. ........................................................................................................ ................................................. 3-6-5 ( 5 ) A white line appears longitudinally............................... 3-6-15 ( 4 ) A paper jam in the registration section is detected during copying (J03 appears)............. .................................................................................... ............................. 3-6-16 ( 6 ) A paper jam in the eject section is detected during copying (J02 appears).......... . ..................................... 3-6-16 ( 5 ) A paper jam in the fixing section is detected during copying (J01 appears)................................. ................................ ....................................... 3-6-15 ( 2 ) A paper jam in the eject section is detected as soon as the main switch is turned on (J02 appears).......................................................................................................... 3-6-4 ( 3 ) Image is too light................................ ........ 3-6-24 ............................................ 3-6-3 ( 2 ) No image (entirely black).... 3-6-13 (20) Image is not square laterally........ ......... 3-6-14 3-6-2 Paper misfeeds ............ ....................... ..................................... 3-6-6 ( 6 ) A black line appears longitudinally....................... 3-6-10 (13) Paper creases......... 3-6-11 (15) Black lines appear on both sides of the image in reducation copies..................................................................................................................................................................................................................................................................................................................................................................................................................... 3-6-17 ( 1 ) Power source PCB ....... ........................................................ ................. 3-6-7 ( 8 ) One side of the copy image is darker than the other....................... ................ 3-6-9 (12) The leading edge of the image is sporadically misaligned with the original...... 3-6-5 ( 4 ) Background is visible. 3-6-10 (14) Offset occurs........................................ .......................... ...................... 3-6-13 (19) Image is not square longitudinally...... 3-6-1 ( 1 ) No image (entirely white)...... ........ .......................... 3-6-14 (21) Image is partially missing laterally.......... 3-6-19 ( 3 ) AVR PCB .....195 3-6 Troubleshooting 3-6-1 Image formation problems .................................................................. 3-6-15 ( 1 ) A paper jam in the registration section is detected as soon as the main switch is turned on (J03 appears).. 3-6-12 (17) Fixing is poor......... 3-6-9 (11) The leading edge of the image is consistently misaligned with the original............................................... 3-6-13 (18) Image is out of focus................ 3-6-8 (10) Image is blurred....................... . 3-6-17 ( 2 ) Main PCB .. 3-6-22 ( 4 ) Operation unit PCB ........... ................ ................ ................................................................................................................................................ 3-6-8 ( 9 ) Black dots appear on the image...... .................................. ........................ 3-6-12 (16) Image is partly missing........... 3-6-15 ( 3 ) A paper jam in the paper drawer is detected during copying (PF appears)....................................................... 3-6-6 ( 7 ) A black line appears laterally................. .... ........ ......................... 3-6-16 3-6-3 PCB terminal voltages ................... .................................... ( 3 ) Skewed paper feed......... ( 8 ) Abnormal noise is heard.. ................................... ....... ............................ ( 9 ) The internal cooling fan motor does not operate....................... ( 1 ) The machine does not operate when the main switch is turned on............. ( 4 ) The lens motor does not operate (C41).. Mechanical problems ................................................. (16) The fixing heater does not turn off (fixing unit thermostat triggered......................................... ( 1 ) No primary paper feed............ ( 8 ) The fixing unit fan motor does not operate......... (10) The paper feed clutch does not operate.. (13) The halogen lamp does not turn off......... ............ 3-6-25 3-6-25 3-6-25 3-6-25 3-6-26 3-6-26 3-6-26 3-6-26 3-6-27 3-6-27 3-6-27 3-6-27 3-6-28 3-6-28 3-6-28 3-6-28 3-6-28 3-6-29 3-6-29 3-6-29 3-6-30 3-6-30 3-6-31 3-6-31 3-6-31 3-6-31 3-6-31 3-6-31 3-6-31 3-6-31 3-6-32 3-6-5 .... (19) No developing bias is output.......... (20) A paper jam is indicated as soon as the main switch is turned on.... (21) Others......................... (17) Main charging does not take place (C50).... ...................... ................... ........................................................................... ...... .............. ( 5 ) Multiple sheets of paper are fed at one time......... (11) The registration clutch does not operate......................................... ..... ................... ( 7 ) The optical section fan motor does not operate...... (14) The cleaning lamp does not light................... ..................................................... ............. C63)................................ ................ .......... ............................................. ..................................................................................... (12) The halogen lamp does not light............................. ............ .................... ..................... ( 3 ) The scanner motor does not operate (C30). ..................................... ( 6 ) Paper jams............................ (15) The fixing heater does not turn on (C61......................................................... ... ( 4 ) The scanner does not travel............ ( 5 ) The mirror motor does not operate (C42)............... (18) Transfer charging does not take place (C50).............................. .......195 3-6-4 Electrical problems ....................................... ( 2 ) The drive motor does not operate (C21).................... ........................................................................................ ..................... ............ ( 2 ) No secondary paper feed......................................... ( 6 ) The toner feed motor does not operate.................................................. ........... ....... ................. C64)....... ( 7 ) Toner drops on the paper conveying path.......... (10) Image is blurred. See page 3-6-4. See page 3-6-8. See page 3-6-6.195 3-6-1 Image formation problems Contents (1) No image (entirely white). See page 3-6-5. See page 3-6-8. (5) A white line appears longitudinally. (7) A black line appears laterally. 3-6-1 . (2) No image (entirely black). See page 3-6-9. (12) The leading edge of the image is sporadically misaligned with the original. (6) A black line appears longitudinally. (3) Image is too light. See page 3-6-5. See page 3-6-10. See page 3-6-3. (9) Black dots appear on the image. See page 3-6-7. See page 3-6-6. (11) The leading edge of the image is consistently misaligned with the original. (8) One side of the copy image is darker than the other. See page 3-6-9. (4) Background is visible. See page 3-6-10. See page 3-6-13. (17) Fixing is poor. (15) Black lines appear on both sides of the image in reduction copies. (18) Image is out of focus. See page 3-6-14. See page 3-6-12. See page 3-6-11. (14) Offset occurs. 3-6-2 . See page 3-6-12. (21) Image is partially missing laterally. See page 3-6-13. See page 3-6-13. (20) Image is not square laterally. See page 3-6-14. (19) Image is not square longitudinally.195 (13) Paper creases. (16) Image is partly missing. 3. No original present. Defective high-voltage transformer PCB. Broken main charger wire. The connector terminals of the Check for continuity across the terminals. Causes 1. E. All blank lamps on. Replace the wire. C. 3. 2. No original present. 2. replace the high-voltage transformer PCB. 5. 3-6-3 . If none. make poor contact. No transfer charging.195 (1) No image (entirely white). Broken transfer charger wire. D. Defective main PCB. Run simulation 33 and check if CN8-4 on the main PCB goes low. Check the gears driving the developing section and replace any broken gears. replace the main PCB. C. Run simulation 42 and if the check pattern copy is not obtained. Causes 1. replace the high-voltage transformer PCB. Clean the main charger housing. replace the main PCB. All blank lamps on. B. If not. B. If not. The connector terminals of the Check for continuity across the terminals. If none. high-voltage transformer PCB replace them. If transfer charging does not take place during simulation 33 after the main PCB has been found to be normal. No main charging. make poor contact. Defective main PCB. 5. 4. ing. Defective high-voltage transformer PCB. Check procedures/corrective measures Place an original in the correct position. E. Run simulation 33 and check if CN8-4 on the main PCB goes low. Developing section not driven. Leaking transfer charger hous. A. D. If main charging does not take place during simulation 33 after the main PCB has been found to be normal. Replace the wire.Clean the transfer charger housing. No main charging. No transfer charging. 4. Developing section not driven. replace the main PCB. A. high-voltage transformer PCB replace them. Leaking main charger housing. If the halogen lamp does not light during simulation 20 after the main PCB has been found to be normal.195 (2) No image (entirely black). D. If none. The connector terminals of the Check for continuity across the terminals. replace it (see page 3-3-16). Broken halogen lamp filament. replace the main PCB. 2. Defective AVR PCB. Broken halogen lamp filament. 2. If none. Causes Check procedures/corrective measures 1. C. If it does. replace them. Defective main PCB. Take the halogen lamp out of the unit and check for continuity across the terminals. B. A. Causes 1. AVR PCB make poor contact. Halogen lamp fails to light. The optical section thermostat is triggered. 3-6-4 . If none. Run simulation 20 and check if CN7-10 on the main PCB remains low. Check for continuity. Halogen lamp fails to light. replace the thermostat after determining the cause (see page 3-317). replace the AVR PCB. Causes 1. 2. Clean the drum. If the maintenance level has been reached. 2. mirrors and other parts in the optical section. Check procedures/corrective measures Clean the main and auxiliary reflectors. Misadjusted developing section. Check procedures/corrective measures If the add toner indicator is on. Check the number of copies made with the current developer. (4) Background is visible. 3. Deteriorated developer. Deteriorated developer. Dirty optical section. 3. Misadjusted developing section. 4. Insufficient toner. Deteriorated developer. 3-6-5 . replace the developer. Dirty or deteriorated drum. replace it (see page 3-3-50). 4. Dirty or deteriorated drum. Causes 1. 2. Dirty optical section. Insufficient toner. Deteriorated developer. replace the developer. Causes 1. Check the number of copies made with the current developer. 2.195 (3) Image is too light. Causes 1. If it has reached the specified limit. If it has reached the specified limit. replace the cartridge. Adjust the developing section. Flawed drum. 2. If the wire is flawed. Dirty or flawed drum. dust filter and other parts in the optical section. Causes 1. 2. Causes 1. Deformed or worn cleaning blade. Foreign matter in the developing section. 3. Dirty or flawed main charger wire. If not. replace (see page 3-359). Foreign matter in the developing section. 4. Causes 1. 3-6-6 . If it is. Replace the drum (see page 3-3-50). 3. replace the developer. Dirty optical section. if it is flawed. Check if the magnetic brush is formed uniformly. replace it. 3. Replace the main charger grid. 4. 2. Check visually if the edge of the cleaning blade is deformed or worn. replace it (see page 3-3-50). Dirty or flawed main charger grid. 2. Check procedures/corrective measures Clean the mirrors. Dirty or flawed drum. Check procedures/corrective measures Clean the main charger wire. Dirty optical section. 3. (6) A black line appears longitudinally. Dirty or flawed main charger wire. Causes 1. Dirty or flawed main charger grid. Clean the drum or.195 (5) A white line appears longitudinally. Deformed or worn cleaning blade. Flawed drum. Causes 1. Run simulation 10 and check if CN8-5 on the main PCB goes low. Dirty developing section. Shorted developing bias wire or it makes poor contact. Poor developing bias wire con. 3. replace the main PCB. No developing bias output. Flawed drum. tact. A. Check procedures/corrective measures Check the drum visually.Check for poor developing bias wire contact.195 (7) A black line appears laterally. replace the high-voltage transformer PCB. Clean any part contaminated with toner or carrier in the developing section. If there is any problem. If no developing bias voltage is output during simulation 10 after the main PCB has been found to be normal. Poor developing bias wire contact. Flawed drum. No developing bias output. replace it (see page 3-3-50). Defective main PCB. 2. If it is flawed. Defective high-voltage transformer PCB. If not. 3-6-7 . Dirty developing section. 4. B. C. replace it. 4. 3. Causes 1. Check the developing bias wire. 2. Unevenly distributed halogen lamp light. Check procedures/corrective measures Clean the drum or. if it is flawed. (9) Black dots appear on the image. Dirty or flawed drum. Dirty contact glass. 2. Clean the mirrors. Clean the contact glass. replace it (see page 3-3-50). Check if the main charger wire or grid is dirty. 3-6-8 . Dirty main charger wire or grid. Deformed cleaning blade. 3. 3. Deformed cleaning blade. Dirty optical section. Dirty optical section. Check procedures/corrective measures Adjust the positions of the light adjusters (see page 3-3-18). Unevenly distributed halogen lamp light. 3. replace it. Causes 1. dust filter and any other dirty parts in the optical section. Causes 1. 2. 3. Dirty or flawed drum. Dirty main charger wire or grid. Replace the cleaning blade if it is deformed (see page 3-3-59). Dirty contact glass. Causes 1. If it is.195 (8) One side of the copy image is darker than the other. 2. Causes 1. 2. Causes 1. Causes 1. Misadjusted leading edge registration. Causes 1. Deformed press roller. Grease the gears or readjust the belt tension if necessary. 3. 4. 4. 3. 2. Scanner moving erratically. Check the gears and belts. Foreign matter on the scanner rail. if any. Misadjusted leading edge registration. Drive system problem.195 (10) Image is blurred. Scanner moving erratically. Drive system problem. Causes 1. 2. Foreign matter on the scanner rail. Deformed press roller. Check visually and replace (see page 3-3-67). (11) The leading edge of the image is consistently misaligned with the original. Check procedures/corrective measures Readjust the leading edge registration timing (see page 3-3-5). Check visually and remove. 3-6-9 . Check procedures/corrective measures Adjust the tension of the scanner wire (see page 3-3-19). Causes 1. 3. 2. Defective fixing pressure springs. Causes 1. Paper damp. Causes 1. Replace the fixing pressure springs. Registration clutch is installed or operating incorrectly. Paper curled. 3. (13) Paper creases. 2. Defective fixing pressure springs. 3-6-10 . Check procedures/corrective measures Check the paper storage conditions. Paper damp. Check procedures/corrective measures Check the installation position and operation of the registration clutch. Paper curled. Causes 1. Check the paper storage conditions. Registration clutch is installed or operating incorrectly.195 (12) The leading edge of the image is sporadically misaligned with the original. Abnormally high heat roller control temperature. Cleaning lamp fails to light. Replace the cleaning blade. Cleaning blade installed in the wrong position. tact. Check for one-way continuity across all the LEDs comprising the cleaning lamp. replace the main PCB. Causes 1. Cleaning blade installed in the wrong position. Check if the fixing unit thermistor is installed correctly. 2. 3. 4. If it does. cleaning lamp make poor con. C. B. A. Abnormally high heat roller control temperature. Defective main PCB. Causes 1. replace the cleaning lamp. 4.replace them. Cleaning lamp fails to light. Force CN7-4 on the main PCB to go low and check if the cleaning lamp lights. If none. If none. The connector terminals of the Check for continuity across the terminals.195 (14) Offset occurs. Defective cleaning blade. Defective cleaning lamp. 3-6-11 . Check procedures/corrective measures Check the installation position of the cleaning blade and correct it. 2. Defective cleaning blade. if necessary (see page 3-359). 3. 4. 2. Defective blank lamps. Paper damp. Check for one-way continuity across all the LEDs comprising the blank lamps. 4. Clean the drum (see page 3-3-52). Flawed drum. If none. Check for signal level changes on the main PCB. Defective main PCB.195 (15) Black lines appear on both sides of the image in reduction copies. Drum condensation. 2. Check procedures/corrective measures Clean the blank lamps. Change the paper. Causes 1. 3. 2. 3. Dirty blank lamps. replace the blank lamp unit. Causes 1. Causes 1. Drum condensation. 2. 3. (16) Image is partly missing. Replace the main PCB if necessary. Defective main PCB. 3. 3-6-12 . Causes 1. Dirty blank lamps. Paper damp. Paper creased. Replace the drum (see page 3-3-50). Check procedures/corrective measures Check the paper storage conditions. Paper creased. Defective blank lamps. Flawed drum. Incorrect focus adjustment. 3. (19) Image is not square longitudinally. 2. Flawed press roller. (18) Image is out of focus Causes 1. Replace the fixing pressure springs. Incorrect focus adjustment. Causes 1. 3. Causes 1. The horizontal alignment of light source unit 2 is adjusted incorrectly. 2. Wrong paper. Check procedures/corrective measures Adjust the focus of the image (see page 3-3-32). Defective fixing pressure springs. Defective fixing pressure springs. The horizontal alignment of light source unit 2 is adjusted incorrectly. Causes 1. Replace the press roller (page 3-3-67). Wrong paper.195 (17) Fixing is poor. Check procedures/corrective measures Adjust the longitudinal squareness of the image (see page 3-3-30). Check procedures/corrective measures Check if the paper meets specifications. Causes 1. Flawed press roller. Causes 1. 3-6-13 . 2. The vertical alignment of light Adjust the lateral squareness of the image (see source unit 2 is adjusted incor. Paper feed clutch incorrectly installed or malfunctioning. Causes 1. Causes 1.195 (20) Image is not square laterally. 3-6-14 . Check and correct the clutch installation condition and its operation. (21) Image is partially missing laterally. Check procedures/corrective measures Check and correct the clutch installation condition and its operation. 2. Causes 1. Registration clutch incorrectly installed or malfunctioning. Registration clutch incorrectly installed or malfunctioning. Paper feed clutch incorrectly installed or malfunctioning. Causes Check procedures/corrective measures 1. The vertical alignment of light source unit 2 is adjusted incorrectly.page 3-3-31). rectly. if any.195 3-6-2 Paper misfeeds Problem (1) A paper jam in the registration section is detected as soon as the main switch is turned on (J03 appears). (3) A paper jam in the paper drawer is detected during copying (PF appears). With 5 V DC present at CN5-1 on the AVR PCB. check if CN11-3 on the AVR PCB remains low when the eject switch is turned on and off. replace the eject switch. With 5 V DC present at CN5-1 on the AVR PCB. copy paper is caught around the eject switch. Causes/check procedures Corrective measure A piece of paper torn from Check visually and remove it. Check if the front or rear claws inside the paper drawer are deformed. If it does. check if CN5-2 on the AVR PCB remains low when the registration switch is turned on and off. Paper in the drawer is extremely curled. Change the paper. Defective eject switch. Check if paper feed pulleys A and B are deformed. Check if the paper feed clutch malfunctions. replace the registration switch. if any. If it does. check if CN5-2 on the AVR PCB goes low when the registration switch is turned on. If not. (2) A paper jam in the eject section is detected as soon as the main switch is turned on (J02 appears). Remedy if deformed. See page 3-6-27. copy paper is caught around the registration switch. Remedy if necessary. A piece of paper torn from Check visually and remove it. Remedy if deformed. Replace if deformed. replace the registration switch. With 5 V DC present at CN11-1 on the AVR PCB. Defective registration switch. Electrical problem with the paper feed clutch. Defective registration switch. 3-6-15 . Check if the springs inside the paper drawer are deformed. Clean or replace the press roller (see page 3-3-67). See page 3-6-27. Defective eject switch. Check if the heat roller separation claws are extremely dirty or deformed. The registration clutch malfunctions. Remedy if necessary. Check if the contact between the eject rollers and pulleys is correct. Causes/check procedures Corrective measure Check if the contact Remedy if necessary. With 5 V DC present at CN11-1 on the AVR PCB. 3-6-16 . Check if the contact Remedy if necessary. Electrical problem with the registration clutch. (5) A paper jam in the fixing section is detected during copying (J01 appears).195 Problem (4) A paper jam in the registration section is detected during copying (J03 appears). between the right and left registration rollers is correct. between the feed rollers and feed pulleys is correct. check if CN11-3 on the AVR PCB goes low when the eject switch is turned on. Electrical problem with the registration clutch. Check if the press roller is extremely dirty or deformed. (6) A paper jam in the eject section is detected during copying (J02 appears). The registration clutch malfunctions. Check if the contact Remedy if necessary. Clean or replace the heat roller separation claws (see page 3-3-71). replace the eject switch. If not. between the right and left registration rollers is correct. Check and remedy. See page 3-6-27. Check and remedy. LTD. ( 1 ) Power source PCB 120 V specifications TB3 F1 TB1 AC 250 V 15A [L] TB4 JP1 JP2 [L] TB2 FH1 FH3 FH7 FH8 FH2 R1 FH4 1952802 TB6 [N] F2 TB9 AC 250 V 15A 3F78-1 RICOH KEIKI CO. TEST BEFORE TOUCHING.240 V specifications TB3 F1 TB1 AC 250 V T8AL [L] TB4 JP1 JP2 [L] TB2 FH1 FH3 FH7 FH8 FH2 R1 FH4 1952803 TB6 [N] F2 TB9 AC 250 V T8AL 3F78-2 RICOH KEIKI CO..195 3-6-3 PCB terminal voltages Precautions • When handling PCBs. • Store PCBs wrapped in aluminum foil.. do not touch connectors with bare hands or damage the board.LTD. CAUTION: LCN3 [WHT] C1 L1 C2 C3 VZ1 LCN2 [N] TB8 LCN1 [L] TB7 F3 AC 250 V T2AL FG1 FG [L] TB10 LCN4 [BLK] FOR CONTINUED PROTECTION AGAINST FIRE HAZARD. TEST BEFORE TOUCHING. REPLACE ONLY WITH SAME TYPE AND RATING OF FUSE. conductive sponge rubber or similar material. [N] D102 D203 ZD201 [WHT] PC2 TRANSFORMER CORE NOT GROUNDED. [N] D102 D203 ZD201 [WHT] PC2 TRANSFORMER CORE NOT GROUNDED. PC1 R18 R16 JP3 R14 JP4 FB1 JP10 FG2 ZD102 R109 R102 Q101 R110 JP7 R15 JP5 D3 C14 R17 C15 IC1 ZD1 D1 C12 C13 R4 R3 C7 C16 FB201 JP8 R9 C102 R2 C6 FB2 R19 R7 FB103 C10 R8 FB4 R13 C5 R108 C202 FG4 C201 D202 JP9 IC201 FB101 D201 R101 C101 D101 JP8 T1 FB102 Q1 C9 DB1 FB5 D4 C4 C8 220 . PC1 R18 R16 JP3 R14 JP4 FB1 JP10 FG2 ZD102 R109 R102 Q101 R110 JP7 R15 JP5 D3 C14 R17 C15 IC1 ZD1 D1 C12 C13 R4 R3 C7 C16 FB201 JP8 R9 C102 R2 C6 FB2 R19 R7 FB103 C10 R8 FB4 R13 C5 R108 C202 FG4 C201 D202 JP9 IC201 FB101 D201 R101 C101 D101 JP8 T1 FB102 Q1 C9 DB1 FB5 D4 C4 C8 3-6-17 3F782310A D2 L3 ZD101 R104 R103 R107 R106 C104 R105 1 C11 R5 R6 L2 FB3 CN1 R1 1 C103 R10 JP11 R11 FH6 FH5 CAUTION: [BLK] TB5 3F781310A D2 L3 ZD101 R104 R103 R107 R106 C104 R105 11 C11 R5 R6 L2 FB3 CN1 R1 C103 R10 JP11 R11 FH6 FH5 CAUTION: [BLK] TB5 . CAUTION: LCN3 [WHT] C1 L1 C2 C3 VZ1 LCN2 [N] TB8 LCN1 [L] TB7 F3 FG1 AC 125 V 15A FG [L] TB10 LCN4 [BLK] FOR CONTINUED PROTECTION AGAINST FIRE HAZARD. • Do not touch any PCB containing ICs with bare hands or any object prone to static charge. REPLACE ONLY WITH SAME TYPE AND RATING OF FUSE. 195 Terminals (CN) TB1 TB3 TB4 TB5 TB7 TB9 1-1 1-2 1-7 1-8 TB2 TB2 TB2 TB6 TB8 TB10 1-3 1-4 1-5 1-6 Voltage 120 V AC 220 - 240 V AC 120 V AC 220 - 240 V AC 120 V AC 220 - 240 V AC 120 V AC 220 - 240 V AC 120 V AC 220 - 240 V AC 120 V AC 220 - 240 V AC 24 V DC 24 V DC 5 V DC 5 V DC Remarks AC supply, input AC supply for MSW, output AC supply, input AC supply for SSW, output AC supply, input AC supply for AVRPCB and DH*, output 24 V DC supply for MPCB, output 24 V DC supply for AVRPCB, output 5 V DC supply for MPCB, output 5 V DC supply AVRPCB, output * Option available only for 120 V specifications. 3-6-18 195 ( 2 ) Main PCB CN6 8 1 C5 D5 D6 R5 DT5 CN7 TR2 14 7 D4 DT4 1 D3 E 1 D2 DT3 1 8 IC11 1 IC10 R108 R107 4 CN5 1 + 1952801 REV:2 1 15 IC17 11 1 CN4 5 10 1 CN3 C4 + C3 1 + 1 IC16 5 1 IC14 IC13 9 R12 R11 R10 R9 R8 R7 R6 81 50 IC15 IC12 80 51 B C 100 1 X1 9 IC7 1 9 CN9 1 2 CN13 1 C1 3 CN10 R1 18 DT6 1 IC4 1 10 CN11 1 IC3 1 9 CN12 9 1 IC2 1 1 IC6 D1 ZD1 1 8 C2 1 TR3 ECB 30 IC8 1 5 31 5 9 1 IC9 8 IC5 2 1 CN2 1-1 1-2 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-10 2-11 2-12 2-13 2-14 2-15 CN8 5 Terminals (CN) 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-3 R4 16 + 1 IC1 5 DT1 1 CN1 2 + Voltage 24 V DC 24 V DC 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 0/5 V DC (pulse) Remarks 24 V DC supply for MSW, output MSW on/off, output OPCB LED lighting signal, output (SEG a) OPCB LED lighting signal, output (SEG b) OPCB LED lighting signal, output (SEG c) OPCB LED lighting signal, output (SEG d) OPCB LED lighting signal, output (SEG e) OPCB LED lighting signal, output (SEG f) OPCB LED lighting signal, output (SEG g) OPCB scan sink, output (DIG 0) OPCB scan sink, output (DIG 1) OPCB scan sink, output (DIG 2) OPCB scan sink, output (DIG 3) OPCB scan sink, output (DIG 4) OPCB scan sink, output (DIG 5) OPCB scan sink, output (DIG 6) OPCB return, input (KEY 0) 3-6-19 195 Terminals (CN) 2-16 3-1 3-2 4-1 4-3 4-5 5-1 5-4 6-1 6-3 6-4 6-5 6-7 6-8 7-1 7-2 7-3 7-4 7-5 7-6 7-7 7-8 7-9 7-10 7-11 7-12 7-13 7-14 8-1 8-2 8-3 8-4 8-5 8-7 9-1 9-2 9-3 9-4 5-3 5-2 5-2 4-2 4-4 4-4 5-2 5-3 6-2 6-6 6-6 6-6 6-6 6-6 5-3 5-2 5-3 5-2 5-3 5-2 5-2 5-3 5-3 5-2 5-2 5-2 5-2 5-2 8-6 8-6 8-6 8-6 8-6 8-6 5-2 5-2 5-2 5-2 24 V DC 5 V DC 0/24 V DC 24 V DC 0/24 V DC 24 V DC Voltage 0/5 V DC (pulse) 24 V DC 0/24 V DC 5 V DC Remarks OPCB return, input (KEY 1) 24 V DC supply for TC, output TC on/off, output 5 V DC supply for HUMPCB, output HUMPCB humidity detection voltage, input HUMPCB temperature detection voltage, input 24 V DC supply, input 5 V DC supply, input TCDSW on/off, input 24 V DC supply for DEVF, output*1 Developing unit new/old differentiation signal, input 24 V DC supply for TNS, output TNS detection voltage, input TNS control voltage, output Zero-cross signal for AVR PCB, output Flicker resistor on/off, output*2 5 V DC supply for AVRPCB, output CL on/off, output RSW on/off, input PFCL on/off, output RCL on/off, output FTH detection voltage, input ESW on/off, input HL light intensity control PWM, output H on/off, output DM ALM, input DM on/off, output FFM and ICFM full speed/half speed/off, output TFM on/off, output HVTPCB main/transfer charging ALM, input HVTPCB PHOTO, output HVTPCB main/transfer charging on/off, output HVTPCB developing bias on/off, output 24 V DC supply for HVTPCB, output SM coil energization pulse, output (SM B) SM coil energization pulse, output (SM B) SM coil energization pulse, output (SM A) SM coil energization pulse, output (SM A) 0/5 V DC 24/0 V DC 5 V DC 0/24 V DC 0/5 V DC 0/24 V DC 0/24 V DC 0/5 V DC 0/24 V DC (pulse) 0/24 V DC 0/24 V DC 0/24 V DC 0/12/24 V DC 0/24 V DC 0/12 V DC 0/12 V DC 0/12 V DC 0/24 V DC 24 V DC 0/24 V DC (pulse) 0/24 V DC (pulse) 0/24 V DC (pulse) 0/24 V DC (pulse) *1 Standard equipment only for 120 V, 220 V and 240 V specifications. *2 For 230 V specifications and optional for 240 V specifications. 3-6-20 195 Terminals (CN) 9-5 10-1 10-2 11-1 11-2 11-3 11-4 11-5 11-6 11-7 11-8 11-9 11-10 12-1 12-3 12-4 12-5 12-7 12-9 13-1 13-2 5-2 10-3 10-3 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 12-2 12-2 12-6 12-6 12-8 12-8 5-2 5-2 Voltage 24 V DC 5 V DC 5/0 V DC 0/24 V DC (pulse) 0/24 V DC (pulse) 0/24 V DC (pulse) 24 V DC 0/24 V DC (pulse) 0/24 V DC (pulse) 0/24 V DC (pulse) 0/24 V DC (pulse) 24 V DC 0/24 V DC (pulse) 5 V DC 5/0 V DC 24 V DC 5 V DC 5/0 V DC 24 V DC 0/24 V DC Remarks 24 V DC supply for SM, output 5 V DC supply for HPSW, output HPSW on/off, input LM coil energization pulse, output (LM φ 2) LM coil energization pulse, output (LM φ 1) LM coil energization pulse, output (LM φ 3) 24 V DC supply for LM, output LM coil energization pulse, output (LM φ 4) MM coil energization pulse, output (MM φ 2) MM coil energization pulse, output (MM φ 1) MM coil energization pulse, output (MM φ 3) 24 V DC supply for MM, output MM coil energization pulse, output (MM φ 4) 5 V DC supply for MHPSW, output MHPSW on/off, input 24 V DC supply for AES, output AES detection voltage, input 5 V DC supply for LHPSW, output LHPSW on/off, input 24 V DC supply for OPFM, output OPFM on/off, output 3-6-21 195 ( 3 ) AVR PCB 120 V specifications R14 R13 R12 D2 D3 NP PC3 CR1 L 1952806 100V CN10 R24 R25 1 1 J12 1 1 J18 J16 J15 J14 J11 J10 1 1 1 1 CN10 R24 R25 1 1 PC5 J20 CN9 CN5 CN8 J16 J15 J14 J12 1 1 J18 R23 J11 J10 1 1 1 1 1 CN11 J17 1 CN5 RF CN13 J13 1 CN8 CN9 RF C8 CN11 CN13 J13 CN2 R15 C3 + VR2 C5 R17B R11 VR3 C4 R10 + R21 R9 R5 R7 R8 C7 B Q2 C6 TRC1 J19 1 R4 D1 ZD1 R3 VR1 R22 R6 J3 J4 J17 J7 + TB1 TB2 J8 R16B R17A C2 C1 B Q1 J1 R2 R1 PC1 R18 PC4 J2 + CR2 J5 J6 PC2 R19 J21 C9 + – TRC2 CN14 CN1 HEAT SINK NOT GROUND, TEST BEFORE TOUCHING. DB 1 WARNING 1 CN4 1 CN7 CN6 J9 J22 CN12 220 - 240 V specifications R14 R13 R12 D2 D3 NP PC3 CR1 L 1952807 170V CN2 C8 C3 VR2 R15 C5 R17B R11 VR3 C4 R10 + R21 R9 R5 R7 R8 C7 B Q2 C6 TRC1 J19 TRC3 CR3 1 CN3 TB2 TB1 CR2 R4 D1 R16A R16C ZD1 R3 VR1 R22 R6 J3 J4 R16B R17A C2 C1 B Q1 J1 R2 R1 PC1 + J5 J6 PC2 R19 J21 C9 J8 TRC2 J7 C10 + + + – PC4 J2 CN14 CN1 HEAT SINK NOT GROUND, TEST BEFORE TOUCHING. DB 1 WARNING 1 CN4 1 CN7 CN6 R18 J9 J22 CN12 3-6-22 195 Terminals (CN) TB1 1-1 2-1 3-1 4-1 4-2 4-3 4-4 4-5 4-6 4-7 4-8 4-9 4-10 4-11 4-12 4-13 4-14 5-1 5-2 6-1 6-2 7-1 7-2 8-2 8-3 8-4 9-1 9-2 10-1 10-2 11-1 11-3 12-1 12-4 13-1 13-2 14-1 14-2 TB2 1-2 2-3 3-4 12-2 12-2 12-2 12-2 12-2 12-3 12-3 12-2 12-2 12-3 12-2 12-3 12-2 12-3 5-3 5-3 12-2 12-2 12-2 12-2 8-1 8-1 8-1 12-2 12-2 12-2 12-2 11-2 11-2 12-2 12-3 12-3 12-3 12-2 12-2 220 - 240 V AC 0/12/24V V DC 0/24 V DC 0/24 V DC 0/24 V DC 0/24 V DC (pulse) 0/5 V DC 0/24 V DC 0/24 V DC 0/5 V DC 0/24 V DC 5 V DC 24/0 V DC 0/5 V DC 5 V DC 0/5 V DC 24 V DC 0/24 V DC 24 V DC 0/24 V DC 24 V DC 0/24 V DC 0/24 V DC 24 V DC 0/24 V DC 24 V DC 0/12/24 V DC 5 V DC 0/5 V DC 24 V DC 5 V DC 5 V DC 24 V DC 0/12/24 V DC Voltage 120 V AC 220 - 240 V AC 120 V AC 220 - 240 V AC Remarks AC supply for H, output AC supply, input HL control voltage, output 220 - 240 V AC supply for flicker resistor, output* FFM full speed/half speed/off, output DM on/off, input DM ALARM, output H on/off, input HL light intensity control PWM, input ESW on/off, output FTH detection voltage, output RCL on/off, input PFCL on/off, input RSW on/off, output CL on/off, input 5 V DC supply, input Flicker resistor on/off, input* Zero-cross signal, input 5 V DC supply for RSW, output RSW on/off, input 24 V DC supply for PFCL, output PFCL on/off, output 24 V DC supply for RCL, output RCL on/off, output 24 V DC supply for DM, output DM on/off, output DM ALM, input 24 V DC supply for CL, output CL on/off, output 24 V DC supply for FFM, output FFM full speed/half speed/off, output 5 V DC supply for ESW, output ESW on/off, input 24 V DC supply, input 5 V DC supply, input FTH detection voltage, input 5 V DC supply for FTH, output 24 V DC supply for ICFM, output ICFM full speed/half speed/off, output * For 230 V specifications and optional for 240 V specifications. 3-6-23 195 ( 4 ) Operation unit PCB L11 L5L19 L6L20 L18 L17 L16 L8 L9L10 CN2 SW7 1 7 L13 L14 L15 L4 SW9 L3 SW4 SW3 SW5 SW6 SW2 L2 7SEGMENT LED SW1 L1 L12 SW8 Terminals (CN) 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-11 1-12 1-13 1-14 1-15 1-16 2-1 2-2 2-3 2-4 2-5 2-6 2-7 MPCB 5-3 Voltage 0/5 V DC (pulse) 0/5 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 24/0 V DC (pulse) 5/0 V DC (pulse) 5/0 V DC (pulse) 5/0 V DC (pulse) 5/0 V DC (pulse) 5/0 V DC (pulse) 0/5 V DC (pulse) 0/5 V DC (pulse) Remarks MPCB return, output (KEY 1) MPCB return, output (KEY 0) Scan sink, input (DIG 6) Scan sink, input (DIG 5) Scan sink, input (DIG 4) Scan sink, input (DIG 3) Scan sink, input (DIG 2) Scan sink, input (DIG 1) Scan sink, input (DIG 0) LED lighting signal, input (SEG g) LED lighting signal, input (SEG f) LED lighting signal, input (SEG e) LED lighting signal, input (SEG d) LED lighting signal, input (SEG c) LED lighting signal, input (SEG b) LED lighting signal, input (SEG a) BL LED lighting source, output (BL SEG a) BL LED lighting source, output (BL SEG b) BL LED lighting source, output (BL SEG c) BL LED lighting source, output (BL SEG d) BL LED lighting source, output (BL SEG e) BL scan sink, output (BL DIG 5) BL scan sink, output (BL DIG 6) MPCB 5-3 3-6-24 1 CN1 16 195 3-6-4 Electrical problems Problem (1) The machine does not operate when the main switch is turned on. Causes No electricity at the power outlet. The power cord is not plugged in properly. The front cover or release unit is not closed completely. Broken power cord. Defective main switch. Blown fuse in the power source PCB. Defective safety switch. Defective power source PCB. Check procedures/corrective measures Measure the input voltage. Check the contact between the power plug and the outlet. Check the front cover and release unit. Check for continuity. If none, replace the cord. Check for continuity across the contacts. If none, replace the main switch. Check for continuity. If none, remove the cause of blowing and replace the fuse. Check for continuity across the contacts of the safety switch. If none, replace the switch. With AC present, check for 24 V DC at CN1-1 and CN1-2 on the power source PCB and 5 V DC at CN1-7 and CN1-8. If none, replace the power source PCB. (2) The drive motor does not operate (C21). Poor contact in the Check for continuity across the connector drive motor connector terminals. If none, replace them. terminals. Defective main PCB. Run simulation 10 and check if CN7-13 on the main PCB goes low. If not, replace the main PCB. Check visually and replace the drive motor if necessary. Broken drive motor gear. (3) The scanner motor does not operate (C30). Broken scanner motor Check for continuity across the coil. If none, coil. replace the scanner motor. Poor contact in the scanner motor connector terminals. Defective main PCB. Check for continuity across the connector terminals. If none, replace them. Run simulation 21 and check if the motor drive coil energization pulse signals are output at CN9-1, -2, -3 and -4 on the main PCB. If not, replace the main PCB. 3-6-25 Causes Broken lens motor coil. If none. Check for continuity across the connector terminals. If not. If not.195 Problem (4) The lens motor does not operate (C41). Run simulation 23 and check if the motor drive coil energization pulse signals are output at CN11-6. 3-6-26 . Defective main PCB. Poor contact in the optical section fan motor connector terminals. replace the mirror motor. -3 and -5 on the main PCB. (6) The toner feed motor does not operate. replace them. Run simulation 23 and check if the motor drive coil energization pulse signals are output at CN11-1. If not. replace them. -8 and -10 on the main PCB. Broken optical section Check for continuity across the coil. If not. replace them. Defective main PCB. (5) The mirror motor does not operate (C42). replace the main PCB. replace the main PCB. Defective main PCB. -7. Check for continuity across the coil. (7) The optical section fan motor does not operate. If none. If none. replace them. fan motor coil. replace the main PCB. Defective main PCB. Run simulation 10 and check if CN8-1 on the main PCB goes low. Poor contact in the mirror motor connector terminals. replace the toner feed motor coil. -2. If none. replace the lens motor. replace the optical section fan motor. Broken toner feed motor coil. replace the main PCB. Check for continuity across the connector terminals. Run simulation 20 and check if CN13-2 on the main PCB goes low. Check for continuity across the connector terminals. If none. If none. Check procedures/corrective measures Check for continuity across the coil. Broken mirror motor coil. Poor contact in the toner feed motor connector terminals. Check for continuity across the coil. If none. Check for continuity across the connector terminals. Poor contact in the lens motor connector terminals. If none. replace them. replace the internal cooling fan motor. Check for continuity across the connector terminals. cooling fan motor coil. Defective main PCB. replace the fixing unit fan motor. 3-6-27 . Run simulation 02 and check if CN7-7 on the main PCB goes low. Check procedures/corrective measures Check for continuity across the coil. If none. Defective main PCB. replace the main PCB. replace them. replace them. If none. Check for continuity across the coil. Poor contact in the registration clutch connector terminals. Poor contact in the fixing unit fan motor connector terminals. Defective main PCB. Defective main PCB. replace them. If none. replace the registration clutch. Causes Broken fixing unit fan motor coil. Run simulation 02 and check if CN7-6 on the main PCB goes low.195 Problem (8) The fixing unit fan motor does not operate. If not. Broken registration clutch coil. Check for continuity across the coil. Broken paper feed clutch coil. Poor contact in the internal cooling fan motor connector terminals. If none. replace the main PCB. If not. If none. Run simulation 10 and check if CN14-2 on the main PCB goes low. If not. Check for continuity across the connector terminals. (10) The paper feed clutch does not operate. If none. Run simulation 10 and check if CN7-14 on the main PCB goes low. Check for continuity across the connector terminals. If none. replace the main PCB. Broken internal Check for continuity across the coil. (9) The internal cooling fan motor does not operate. (11) The registration clutch does not operate. Poor contact in the paper feed clutch connector terminals. If not. Check for continuity across the connector terminals. If none. replace the paper feed clutch. replace the main PCB. Defective main PCB. replace the fixing unit thermistor. If none. remove the cause of blowing and replace the fixing unit thermostat. replace the halogen lamp (see page 3-3-16). Run simulation 10 and check if CN7-4 on the main PCB goes low. Broken fixing heater wire. thermostat triggered. replace the cleaning lamp. If none. Poor contact in the cleaning lamp connector terminals. (15) The fixing heater does not turn on (C61. Defective main PCB. replace the main PCB. Check for continuity across the thermostat. Defective AVR PCB. (12) Broken halogen lamp The halogen filament. Check for continuity across the connector terminals. (16) The fixing heater does not turn off (fixing unit thermostat triggered. Defective main PCB. replace the AVR PCB. See page 3-6-4. Defective cleaning (14) The cleaning lamp. If the fixing heater stays on with CN4-4 on the AVR PCB high. Check for one-way continuity across all the LEDs comprising the cleaning lamp. If it is ∞Ω. If none. (13) The halogen lamp does not turn off. If CN7-11 on the main PCB is always low. Poor contact in the AVR PCB connector terminals. C64). If none. Fixing unit thermostat 1 or 2 triggered. If not. replace the fixing heater (see page 3-3-62). Check visually and clean the thermistor sensor part. Broken fixing unit thermistor. C63). Defective AVR PCB. Check for continuity.195 Problem Causes Check procedures/corrective measures Check for continuity. Defective main PCB. replace the AVR PCB. If none. replace the main PCB. Measure the resistance. replace them. lamp does not light. replace the main PCB. If the halogen lamp does not turn off when HL CONT (PWM) is not output to CN4-5 on the AVR PCB. Dirty sensor part of the fixing unit thermistor. Defective AVR PCB. 3-6-28 . lamp does not Optical section light. If the HL CONT (PWM) signal is always output from CN7-10 on the main PCB. (17) Broken main charger Main charging wire. Defective high-voltage transformer PCB. Defective main PCB. replace the highvoltage transformer PCB. Check for continuity across the connector terminals. Leaking transfer charger housing. If not. Defective main PCB. Poor contact in the (19) developing bias wire. high-voltage transformer PCB connector terminals. Defective high-voltage transformer PCB. (18) Transfer charging does not take place (C50). Check visually and replace the transfer charger wire if it is broken (see page 3-3-55). Poor contact in the high-voltage transformer PCB connector terminals. replace them. does not take Leaking main charger place (C50). Check the developing bias wire for poor contact. Defective high-voltage Run simulation 10. replace the main PCB. output while CN1-3 on the high-voltage transformer PCB goes low. 3-6-29 . Poor contact in the high-voltage transformer PCB connector terminals. See page 3-6-3. No developing Poor contact in the bias is output. Defective main PCB. If no developing bias is transformer PCB.195 Problem Causes Check procedures/corrective measures Check visually and replace the main charger wire if it is broken (see page 3-3-13). See page 3-6-3. If none. Run simulation 10 and check if CN8-5 on the main PCB goes low. housing. Broken transfer charger wire. 195 Problem (20) A paper jam is indicated as soon as the main switch is turned on. Noise. if any. Defective registration switch. With 5 V DC present at CN5-1 on the AVR PCB. If none. if CN5-2 on the AVR PCB remains low when the registration switch is turned on and off. (21) Others. With 5 V DC present at CN11-1 on the AVR PCB. Locate the source of noise and remove. 3-6-30 . if CN11-3 on the AVR PCB remains low when the eject switch is turned on and off. replace the eject switch. Causes A piece of paper torn from copy paper is caught around the registration or eject switch. repair. Check procedures/corrective measures Check visually and remove. shorted or makes poor contact. Defective eject switch. Check for continuity. replace the registration switch. Wiring is broken. Remedy if deformed. (3) Skewed paper feed. Check if the front or rear claws inside the paper drawer are deformed. roller separation claws (see page 3-3-71). Remedy or replace if deformed. feed roller and pulley are dirty with paper powder. of paper are fed Check if the paper is curled. at one time. (6) Paper jams. Remedy if deformed. Clean the developing unit. Corrective measure Clean with isopropyl alcohol. and pulley. (4) Check if the scanner wires are loose. See page 3-6-25. Change the paper. Check if the surfaces of the feed roller Clean with isopropyl alcohol. Check if the paper is extremely curled. Remedy if deformed. Causes/check procedures Check if the surfaces of paper feed pulleys A & B. Reinstall the scanner wires (see page 3-3-19). the paper conveying path. Check if the heat roller separation Clean or replace the heat claws are extremely dirty or deformed. 3-6-31 . Change the paper. Electrical problem with the scanner motor. See page 3-6-27. Electrical problem with the registration See page 3-6-27. Electrical problem with the paper feed clutch.195 3-6-5 Mechanical problems Problem (1) No primary paper feed. clutch. Clean or replace the press roller (see page 3-3-67). Check if the springs inside the paper drawer are deformed. Check if the front or rear claws inside the paper drawer are deformed. The scanner does not travel. Remedy if deformed. Check if the press roller is extremely dirty or deformed. right and left registration rollers are dirty with paper powder. Check if the front or rear claws inside (5) Multiple sheets the paper drawer are deformed. (2) No secondary paper feed. Check if the developing unit is (7) Toner drops on extremely dirty. Check if the springs in the paper drawer are deformed. 195 Problem Causes/check procedures Corrective measure Grease the bushings and gears. Remedy. is heard. Check if the paper feed clutch and registration clutch are installed correctly. 3-6-32 . (8) Check if the rollers and gears operate Abnormal noise smoothly. ....... 3 ........................ Power source PCB ................................................................................................................................. Timing chart No.......................................................................................................................................... Wiring diagram ................................... Connection diagram .................................................................................................................................................................................................................................... 3-7-1 3-7-2 3-7-3 3-7-4 3-7-5 3-7-6 3-7-7 3-7-8 3-7-9 .......................... Operation unit PCB .................. Timing chart No.................... 2 .............................................................195 3-7 Appendixes Timing chart No........................................ AVR PCB ........................... 1 ............................................................................ Main PCB . CN2-7 All off 2s All on 10 s 285 ms All off 7 HV CN8-4 50 ms 7 8 * If. when the main switch is turned on FTH temperature ≥ 10°C/50°F and ambient temperature ≥ 15°C/59°F: 29 s FTH temperature < 10°C/50°F or ambient temperature < 15°C/59°F: 44 s FTH temperature ≥ 80°C/176°F: 5 s 8 A B C D E F G H I J 3-7-1 E A E A A E DC-1460 S/M (MCA.MCE) E A A E . 1 The main switch is turned on when the fixing temperature (as measured by the fixing unit thermistor) is higher than 12°C/ 53.E A E A A E A E A E 195 Timing chart No.6°F and the machine internal temperature (as meassured by the drum thermistor) is higher than 15°C/59 °F A B C D E F G H I J MSW: On 1 1 2 Fixing temperature 185°C/365°F 175°C/347°F 160°C/320°F 80°C/176°F 2 3 3 4 H CN7-11 4 DB CN8-5 200 ms 1s 5 DM CN7-13 200 ms 29 s* 5 Copy start indicator 6 FFM CN7-14 1s Fast 6 BL CN2-1 . bypass feed.CN2-7 285 ms All off 7 FFM CN7-14 Slow 7 3000 ms Slow OPFM CN13-2 8 H (Fixing temp. 2 A single copy (70% magnification ratio.CN9-4 65 ms 5P 198 ms max. A4R/81 /2 " × 14" paper) HPSW: On A B C RSW: On D E RSW: Off F G ESW: Off H I J 1 Print key 1 Input 2 RSW CN7-5 2 ESW CN7-9 HPSW CN10-2 3 SM FWD CN9-1 .E A E A E A A E A E 195 Timing chart No. 3 4 DM CN7-13 100 ms 100 ms 4 PFCL CN7-6 330 ms 5 RCL CN7-7 246 P (SIM58) 5 200 ms DB Output CN8-5 100 ms 6 HL CN7-10 6 50 ms 127 P (SIM54) All on Side erasure 190 ms All on (SIM59) Fast 384 ms HV CN8-4 BL CN2-1 .) High-level control 8 A TC CN3-2 B C D E F G 300 ms H I J 3-7-2 E A E A E A DC-1460 S/M (MCA.CN9-4 500 ms min 2845 P SM REV CN9-1 .MCE) E A A E . 2358 P 65 ms 5P 3 SM REV CN9-1 . drawer feed.CN9-4 350 ms 910 P 100 ms 55 ms min. 3 A single copy (100% magnification ratio.) High-level control 8 A TC B CN3-2 C D E F G 300 ms H I J 3-7-3 E A E A A E DC-1460 S/M (MCA.E A E A A E A E A E 195 Timing chart No.MCE) E A A E .CN2-7 7 FFM CN7-14 Slow Side erasure 190 ms All on (SIM59) Fast 285 ms All off 7 3000 ms Slow OPFM CN13-2 8 H (Fixing temp. AE) Print key: On HPSW: On HPSW: On A B C D E RSW: Off F G ESW: Off H I J 1 1 Print key Input 2 RSW CN7-5 2 ESW CN7-9 HPSW CN10-2 3 SM FWD CN9-1 . A4R/81 /2" × 14" paper. 5P 198 ms max.CN9-4 4 DM CN7-13 100 ms 100 ms 4 PFCL CN7-6 600 ms 246 P (SIM58) 330 ms 5 RCL CN7-7 5 DB Output CN8-5 100 ms 200 ms 6 HL CN7-10 6 50 ms 127 P (SIM54) All on 450 ms 384 ms HV CN8-4 BL CN2-1 . 240 V specifications only.MCE) E A A E . 8 8 A B C D E F G H I J 3-7-4 E A E A E A DC-1460 S/M (MCA.E A E A E A A E A E 195 Power source PCB A B C D E F G H I J 1 R101 R2 F3 L2* ~ R8 + – ~ R3 + C9 FB4 1 C101 T1 FB101 R5 C10 R9 D2 R6 L TB1 1 IN R102 R103 R104 R105 R106 F1 L1 R1 C1 1 OUT TB3 TB7 1 IN D101 FB103 D102 1 OUT 2 OUT 3 OUT 4 OUT CN1 CN1 +24 V C2 C4 C8 C104 2 L3 VZ1 C3 FB102 C103 R110 + 2 CN1 CN1 DG DB1 C102 PC1 N TB2 1 IN F2 1 OUT 1 IN TB6 TB8 1 IN R4 C5 C6 D1 R10 ZD1 C16 C7 R13 D201 FB201 1 + C201 D202 IC201 3 Q101 D203 R111 + ZD102 3 7 OUT 8 OUT 5 OUT 6 OUT CN1 CN1 +5 V FB5 ZD201 S D4 R19 R7 R107 TB5 R109 1 OUT ZD101 FB2 FB3 + 4 C202 PC2 TB4 Q1 D G 3 2 CN1 CN1 SG 4 TB9 1 OUT 4 FG R17 + D3 R11 FB1 TB10 1 OUT C12 C13 C11 5 PC2 R18 5 IC1 6 R14 R16 6 C15 R15 PC1 7 C14 7 * For 220 . C R23 120 V NOT MOUNT NOT MOUNT NOT MOUNT NOT MOUNT NOT MOUNT NOT MOUNT NOT MOUNT 220 .E A E A A E A E A E AVR PCB 195 A B C D E F G H I J 1 5V G (5 V) G (24 V) 24 V ZERO CROSS Flicker REM 5V CL REM RSW PFCL RCL FTH ESW HL CONT H REM DM ALM DM REM FFM REM DM ALM DM REM G (24 V) CN12-4 CN12-3 CN12-2 CN12-1 CN4-14 CN4-13 CN4-12 CN4-11 CN4-10 CN4-9 CN4-8 R24 R25 CN10-2 CN10-1 CN9-2 CN9-1 CN5-3 CN5-2 CN5-1 CN6-1 CN6-2 CN7-1 CN7-2 CN11-2 CN11-3 CN11-1 CN13-2 CN13-1 CN13-3 CN14-2 CN14-1 FFM 24 V CL 24 V G (5 V) RSW 5V 24 V PFCL 24 V RCL G (5 V) ESW 5V 5V FTH ICFM 24 V 5.9 HIC 11 0 V 8 R21 C7 4 PC3 TRC1 L CR1 C8 CN2-3 HL COM 2 –12 14 (R16A) (R16B) 1 2 PART NAME TRC3 PC5 CN3 CR3 C10 R16A.240 V MOUNT MOUNT MOUNT MOUNT MOUNT MOUNT MOUNT 2 3 4 DM CN4-7 CN4-6 CN4-5 CN4-4 CN4-3 CN4-2 CN4-1 CN8-4 CN8-3 CN8-1 24 V CN8-2 3 4 5 PC2 R3 Q1 C1 6+ – 5 IC 7 R15 PC1 PC4 C3 R22 PC4 13 SS 7 ZERO 7 PC2 8 A B C D E F G E A E A A E DC-1460 S/M (MCA.9 PC1 R19 R18 PC5 R23 R1 C2 + R4 ZD R5 R2 VR1 3 8 D1 R7 2+ – 1 4 R6 VR3 R8 R9 R10 C4 R11 R12 R13 D2 R14 D3 C5 1 Q2 –12 5.MCE) + 6 + 3 +12 (R16C) 12 R17B R17A DB RF TB1 CN2-1 CN1-1 CN1-2 H LIVE HL LIVE AC LIVE AC COM VR2 5 + C6 6 C9 C10 TRC2 CR2 Flicker resistor (for 230 V specifications and optional for 240 V specifications) PC5 CN3-4 TRC3 CR3 CN3-1 TB2 H COM 7 8 H I J 3-7-5 E A A E . MCE) E A A E .E A E A E A A E A E 195 Operation unit PCB A B C D E F G H I J L11 L5 L19 L6 L20 L18 L17 L16 1 L8 L9 L10 CN2 SW7 7 L13 L14 L15 L4 SW9 L3 SW4 SW3 SW5 SW6 SW2 L2 7SEGMENT LED SW1 L1 b1 f2 L12 SW8 7 SEGMENT LED 1 CN1 16 1 a3 f3 g2 b2 g3 b3 e3 c1 e2 c2 c3 d2 d3 a2 1 2 2 CN1-16 SEG a CN1-15 SEG b CN1-13 SEG d CN1-12 SEG e CN1-10 SEG g CN1-14 SEG c KEY 0 CN1-11 SEG f KEY 1 DIG 0 DIG 1 DIG 2 DIG 3 DIG 4 DIG 5 DIG 6 3 3 CN1-9 CN1-8 CN1-7 CN1-6 CN1-5 CN1-4 CN1-3 CN1-2 CN1-1 4 CN2-7 CN2-6 CN2-5 CN2-4 CN2-3 CN2-2 CN2-1 BL DIG 6 BL DIG 5 BL SEG e BL SEG d BL SEG c BL SEG b BL SEG a 4 5 5 6 L19 L1 L8 L2 L9 L16 b2 b3 L3 L10 L17 c2 c3 L4 L11 L18 d2 d3 e2 e3 L5 L12 L6 L13 b1 f2 f3 L14 c1 g2 g3 L20 SW9 D9 SW7 SW8 D7 D8 SW5 SW6 D5 D6 SW3 SW4 D3 D4 SW1 SW2 D1 D2 6 7 L15 a2 a3 7 8 8 A B C D E F G H I J 3-7-6 E A E A E A DC-1460 S/M (MCA. 16 1. 10. 4. 13 IC14 S G R62 S G IC16 IC16 IC9 A B C D E F G H I J 3-7-7 . 6. P G 8 P G S G 4 4. 5. 8 CN8-2 R49 CN6-8 R104 C34 8 TNS CONT IC14 7 + – 5 9 6 R61 S G 8 11 S G 10 S 8 3 9 COM S + – + – S G 12 IC5 S G IC2. 12. 7.Main PCB A B C 24 V MSW CN1-1 IC13 CN1-2 CN7-2 CN3-1 CN3-2 B 15 C E DT1 S G R109 B R107 R108 195 195 D E S R21 R22 3 R106 S Flicker resistor REM* 24 V TC C E DT5 IC7 14 S G R15 R51 S G TC IN WD F G H I J 2 R26 R27 CN12-3 CN12-9 MHPSW LHPSW 1 B DEVF IN TC IN 1 S IC7 3 2 CN7-14 FFM REM C8 IC10 5 6 S R19 S R105 WD 24 V CN9-5 C1 + P G 24 V CN11-9 R110 C E S G S CN7-10 HL CONT C6 S G 2 DT6 10 TFM REM CN8-1 IC7 E C H ALARM B 11 SM A SM A SM B SM B CN9-4 CN9-3 CN9-2 CN9-1 8 ADJ2 7 _RES2 6 VCC 5 ADJ1 R16 1 WD 2 S G TC 3 _RES1 4 R17 GND R18 1 C7 S IC6 7 6 IC6 2 _OC _RESET 2 IC1 S G 3 6 11 IC4 IC4 2 CN11-10 7 CN11-8 2 H REM R32 R52 1 MM φ 4 MM φ 3 MM φ 1 MM φ 2 CN7-11 IC10 D3 S R31 VSA VSB A A B B IC11 7 12 8 1 18 11 2 TdA 13 TdB OUT A IN A B B 6 5 7 16 DM REM CN7-13 IC4 10 CN11-7 IC4 15 4 IC10 3 C25 TR2 P G R58 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 3 R30 C10 RSA REFA REFB RSB CNDA CNDB CL REM CN7-4 R57 C E B IC13 6 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 IC13 _WR _RD 11 9 IC10 10 8 CN7-7 CN8-3 RCL PHOTO REM 7 CN7-6 PFCL D2 S 14 CN11-6 C15 9 3 1410 4 15 C14 P G R1 3 R53 24 V LM φ 2 LM φ 1 R54 P G P G CN11-4 CN11-1 CN11-2 CN11-3 CN11-5 2 7 10 15 IC3 IC3 IC3 IC3 3 6 11 14 R14 R86 R37 R34 R33 4 7 R85 R36 5 – IC5 2 IC5 – 1 1 3 4 LM φ 3 LM φ 4 S C23 S R13 HPSW ZERO CROSS KEY0 DEV-UNIT KEY1 CN10-2 CN7-1 CN2-15 CN6-1 CN2-16 2 X1 S G H ALARM S G _RESET INTP 1 + S S R38 + 6 5 P16 P17 AVSS ANO0 P131 AVREF R×D T×D ASCK VSS P20 P21 P22 P23 P24 P25 P26 P27 A0 A1 RSW R35 R82 S G R81 CN7-5 R68 R67 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 RTP0 RTP1 RTP2 RTP3 RTP4 RTP5 RTP6 RTP7 IC X2 X1 VDD XT2 P07 _RESET INTP0/P00 INTP1/P01 INTP2/P02 INTP3/P03 INTP4/P04 INTP5/P05 P06 AVDD AVREF0 AN10 AN11 AN12 AN13 AN14 AN15 P96 P95 P94 P93 P92 P91 P90 P37 P36 P35 P34 P33 P32 P31 T00 P103 P102 P101 P100 ASTB P G R4 DT4 IC12 P66 _WR _RD P63 P62 P61 P60 A15 A14 VSS A13 A12 A11 A10 A9 A8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 A7 A6 A5 A4 A3 A2 A15 A14 A13 A12 A11 A10 A9 A8 D7 D6 D5 D4 D3 D2 D1 D0 A7 A6 A5 A4 A3 A2 A1 A0 S G 11 IC10 10 CN8-4 HV REM 13 IC10 12 CN8-5 DB REM 4 R45 R44 11 + IC5 3 R40 S INTP1 _OC IC6 A15 3 5 1 10 – ZD1 R46 IC16 1 IC16 _OC CLK D0 D1 D2 D3 D4 D5 D6 D7 3 4 7 8 13 14 17 18 D1 D2 D3 D4 D5 D6 D7 D8 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 IC17 IC7 6 7 CN13-2 OPFM REM 2 5 6 9 12 15 16 19 IC16 IC16 4 IC16 5 IC16 6 IC16 7 15 14 13 12 R9 R8 R7 R6 CN2-4 CN2-5 CN2-6 CN2-7 CN13-1 SEG d SEG e SEG f SEG g 24 V 2 3 18 17 16 R12 R11 R10 CN2-1 CN2-2 CN2-3 SEG a SEG b SEG c S R20 S R23 2 _WR 3 S G A15 A15 _RD R92 S S IC15 20 22 10 9 8 7 6 5 4 3 25 24 21 23 2 26 27 _CE _OE A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 Vcc Vpp Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 28 1 11 12 13 15 16 17 18 19 C28 IC2 5 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 FSW CN7-9 R43 R94 FTH CN7-8 R42 C13 S G 8 R39 9 R83 IC5 – 14 R41 S C22 S G H ALARM S G S IC9 1 16 IC9 15 IC9 3 IC9 4 IC9 5 IC9 6 11 IC9 7 D5 10 12 CN2-12 CN2-13 CN2-14 CN6-2 DIG 4 DIG 5 DIG 6 13 CN2-11 DIG 3 14 CN2-10 DIG 2 CN2-8 CN2-9 DIG 0 DIG 1 S S S G S G R47 TNS CN6-7 R84 + S D6 S 8 7 6 5 C16 IC8 VCC CS NC SK TEST DI GND DO 2 1 2 3 4 + D1 6 AES CN12-5 R24 S G C3 S G R25 S S G C21 S G C20 S G R72 R73 R74 R75 R76 R77 R78 R79 R97 R96 R93 R95 R80 R98 R99 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 S G D0 D1 D2 D3 D4 D5 D6 D7 NON MOUNT R71 R70 R69 R87 R88 R89 R90 R91 S 6 R100 S G NON MOUNT CN7-3 DEV SW CN6-5 CN6-4 15 R59 DEVF IN R60 S G C17 S G S G R5 CN6-3 DEVF SHORT C11 S G C26 24 V CN5-1 C4 C9 C30 G (24 V) CN5-2 P G CN6-6 CN8-6 CN12-6 G (24 V) G (24 V) G (24 V) CN8-7 24 V 24 V 24 V G (5 V) CN5-3 S G C5 5V CN5-4 5V 5V 5V 5V S 5V CN4-1 R63 CN4-3 C27 G (5 V) CN4-2 R64 2 R103 CN4-5 C33 IC14 3 + 1 R66 S D4 S CN10-1 CN12-1 IC13 14 C18 S G 7 HUMSENS S + C29 CN12-4 + CN12-7 C31 CN10-3 CN12-2 CN12-8 7 S S G ETTH G (5 V) – R65 R102 C24 C12 G (5 V) G (5 V) G (5 V) CN4-4 S G S DM ALM HV ALM CN7-12 R55 R56 R48 S 9. 13 IC3. 17 8 * For 230 V specifications and optional for 240 V specifications. 1 6.1 24 V 10.3 ESW 11.3 4.4 11.2 2.6 11.6 2.1 2.1 SM B SM B SM A SM A 24 V 2222222- 5555- 99999- 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 1 2 3 4 5 5 OPCB 6 13.5 4.3 G (5 V) 5.2 3.1 FTH 13.5 2.2 PFCL 7.3 7.240 V FUSE 250 V/15 A FUSE 250 V/8 A 1 2 3.Connection diagram A B C D E Flicker resistor (for 230 V specifications and optional for 240 V specifications) 195-1 195 F G H I J TH3 1 1 2 2 HL A B DH SSW 2 optional for 120 V specifications 1 1 TH1 120 V 910 W 240 V 1040 W MSW FUSE 2.2 6.2 11.7 4.3 2.240 V 250 V/8 A RCL 3 1-2 1-4 1-6 1-8 24 V G (24 V) G (5 V) 5V 12-1 12-2 12-3 12-4 RSW 3 ESW 1 2 3 4 1-1 1-3 1-5 1-7 PSPCB AVRPCB 4.1 SEG a SEG b SEG c SEG d SEG e SEG f SEG g DIG 0 DIG 1 DIG 2 DIG 3 DIG 4 DIG 5 DIG 6 KEY 0 2.2 4.1 24 V 7.3 LM φ 2 LM φ 1 LM φ 3 24 V LM φ 4 MM φ 2 MM φ 1 MM φ 3 24 V MM φ 4 1 2 3 4 7-14 7-13 7-12 7-11 7-10 7.1 HL LIVE H LIVE H COM TB1 TB2 TH2 1 1 1 1 14.1 5 V 10.9 1.1 13.2 G (5 V) 11.8 2.4 2.2 RCL 5.240 V CORE (for 220 .8 1.5 11.1 TB5 TB3 TB4 TB6 1 2 TB7 TB8 2 LIVE 120 V 220 .2 5 V 13.2 7.2 6.7 11.6 7.2 ICFM 10.bias TC A B C D E F G H I J 3-7-8 .1 11.5 1.1 24 V 9.3 HL COM 2.2 RSW 5.6 1.9 2-10 2-11 2-12 2-13 2-14 2-15 2-16 MPCB 6 3 4 5 6 7 8 7 6 5 4 3 2 1 1 2 3 4 5 24 V TC A B 1 2 3 1 2 3 1 2 3 TCDSW 1 2 3 1 2 3 1 2 3 TCDSW 5 4 3 2 1 HUMPCB OPFM 7 1 2 3 4 1 2 3 4 TC 1111111- 1 2 3 4 5 6 7 HVTPCB 2 4 3 1 24 V 2.1 2.7 7. C 1 1 2 2 3 3 1 1 2 2 1 2 3 1 H ICFM FFM 2 1 1 2 3. 220 V and 240 V specifications DEVF MC 8 Dev.2 666666- 8888888- DEVF SHORT 24 V G (24 V) TNS TNS CONT DEV.240 V specifications only) 120 V 220 .2 1.2 TFM DB HV FB TFM TNS 8 for 120 V.7 1.3 11.2 CL 6.5 7.1 5 V 13.1 CL NF TB10 1.4 1.UNIT DEV.3 N.UNIT DEV SW DEV SW 24 V G (24 V) DB REM HV REM PHOTO REM HV ALM TFM REM 1 1 3 3 1 2 3 1 2 3 4 5 6 7 8 9 10 11 12 MSW 24 V 7 24 V OPFM REM 5V G (5 V) HUMSENS G (5 V) ETTH 44444- 1-16 1-15 1-14 1-13 1-12 1-11 1-10 1.9 4-10 4-11 4-12 4-13 4-14 FTH MHPSW AES LHPSW HPSW GND (24 V) 24 V DM REM DM ALM 8888- 3 2 1 1 2 3 3 2 1 3 2 1 4 BL LM 54321 MM 54321 4 SM FFM REM DM REM DM ALM H REM HL CONT ESW FTH RCL PFCL RSW CL REM 5V Flicker REM ZERO CROSS 1 2 3 4 5 6 7 8 9 9 8 7 6 5 4 3 2 1 BL SEG a BL SEG b BL SEG c BL SEG d BL SEG e BL DIG 5 BL DIG 6 1 2 3 4 5 5 4 3 2 1 1-4 1-3 1-2 1-1 DM 5V G (5 V) MHPSW 24 V AES G (24 V) 5V G (5 V) LHPSW 24 V G (24 V) G (5 V) 5V 11.6 4.8 7.3 1.1 24 V 14.2 FFM 9.4 2 TB1 120 V FUSE 250 V/15 A TB 9 1.2 TB2 NEUTRAL PFCL FUSE 220 .1 KEY 1 1.9 7.8 11.7 2.1 6.1 24 V 6.4 7.2 HPSW G (5 V) 10.2 1.1 3.8 4.1 4.9 11-10 5 121212121212121212- 10.1 5 V 11.4 4. bias DEVELOPING UNIT LHPSW C34 1 LHPSW 2 G (5 V) 3 5V GY C29-9 GY C29-8 GY C29-7 LM φ 2 LM φ 1 LM φ 3 24 V LM φ 4 7 FIXING UNIT Flicker resistor for 230 V specifications and optional for 240 V specifications SSW P10 1A 1 1B 2 2A 3 2B 4 WE 5 4 3 2 1 PSPCB TB8 COM P9 WE WE WE WE WE WE WE GY C2-16 GY C2-15 GY C2-14 GY C2-13 GY C2-12 GY C2-11 GY C2-10 GY C2-9 GY C2-8 GY C2-7 GY C2-6 GY C2-5 GY C2-4 GY C2-3 GY C2-2 GY C2-1 LM WE P10-4 BL SEG a BL SEG b BL SEG c BL SEG d BL SEG e BL DIG 5 BL DIG 6 OPCB KEY 1 KEY 0 DIG 6 DIG 5 DIG 4 DIG 3 DIG 2 DIG 1 DIG 0 SEG g SEG f SEG e SEG d SEG c SEG b SEG a WE P10-3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 BK P10-2 BK P10-1 1 2 3 4 5 6 7 TB6 COM P7 P8 TB7 LIVE P6 TB5 LIVE BK P6 BK P8 WE P7 WE P9 Wire color Symbol BLACK BK BROWN BN YELLOW YW GREEN GN BLUE BE WHITE WE PINK PK RED RD ORANGE OE LIGHT BLUE LB PURPLE PE GRAY GY GREEN/YELLOW GN/YW RED/WHITE RD/WE 7 8 C15 (CN2) C14 (CN1) *1 For 220 V/60 Hz and 230 V specifications. 220 V/60 Hz and 240 V specifications.240 V C25 DM ALM DM REM 24 V G (24 V) FFM C16 BK C43-2 RD C43-1 BE C40-2 BE C40-1 BE C39-2 BE C39-1 RCL PFCL RD BK RD FB P16 OE C25-3 1 GN C25-2 2 BE C25-1 3 GY C26-5 GY C26-4 GY C26-3 GY C26-2 GY C26-1 GY C30-5 GY C30-4 GY C30-3 GY C30-2 GY C30-1 5V HPSW G (5 V) GY C41-4 GY C41-3 GY C41-2 GY C41-1 2 HPSW RD P17 RD YW C20-12 RD 1 2 GN HVTPCB GY C28-9 GY C28-8 GY C28-7 GY C28-6 GY C28-5 GY C28-4 GY C28-3 GY C28-2 GY C28-1 C23 (CN1) TFM REM HV ALM PHOTO REM HV REM DB REM G (24 V) 24 V φ2 φ1 φ3 24 V φ4 SM HUMPCB C30 C17 5V G (5 V) HUMSENS G (5 V) ETTH 5 4 3 2 1 GY C4-1 GY C4-2 GY C4-3 GY C4-4 GY C4-5 7 6 5 4 3 2 1 1 2 3 4 GY C8-1 GY C8-2 GY C8-3 GY C8-4 GY C8-5 GY C8-6 GY C8-7 C54 1 2 3 MM HV DB P15 X1 C9 (CN9) 24 V OPFM REM C1 (CN1) C24 (CN2) 1 24 V 2 TFM INLET 120 V CORE (for 220 . 220 V/50 Hz. 220 V and 240 V specifications.240 V specifications only) YW C9-1 BE C9-2 RD C9-3 BN C9-4 WE C9-5 GY C11-5 GY C11-4 GY C11-3 GY C11-2 GY C11-1 OPFM C28 1 2 3 4 5 6 7 8 9 C29 9 8 7 6 5 4 3 2 1 GY C34-1 GY C34-2 GY C34-3 BE C33-3 GN C33-2 RD C33-1 GY C32-1 GY C32-2 GY C32-3 1 2 3 4 5 6 C26 6 5 4 3 2 1 C27 GY C31-1 GY C31-2 GY C31-3 GY C31-4 GY C31-5 1 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 5 4 3 2 1 TFM LM φ 2 LM φ 1 LM φ 3 24 V LM φ 4 MM φ 2 MM φ 1 MM φ 3 24 V MM φ 4 5V HPSW G (5 V) C11 (CN11) C13 (CN13) GY C23-7 GY C23-6 GY C23-5 GY C23-4 GY C23-3 GY C23-2 GY C23-1 1 2 3 4 5 6 7 TFM REM HV ALM PHOTO REM HV REM DB REM G (24 V) 24 V C8 (CN8) C12 (CN12) SEG a SEG b SEG c SEG d SEG e SEG f SEG g DIG 0 DIG 1 DIG 2 DIG 3 DIG 4 DIG 5 DIG 6 KEY 0 KEY 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GY C14-16 GY C14-15 GY C14-14 GY C14-13 GY C14-12 GY C14-11 GY C14-10 GY C14-9 GY C14-8 GY C14-7 GY C14-6 GY C14-5 GY C14-4 GY C14-3 GY C14-2 GY C14-1 C10 (CN10) MHPSW MPCB GN C19-2 OE C19-1 1 FTH 2 5V 3 DEV. UNIT DEV SW DEVF SHORT 24 V G (24 V) TNS TNS CONT 5V G (5 V) HUMSENS G (5 V) ETTH BK C36-1 WE C36-2 C3 (CN3) RD BK 1 24 V 2 FFM OE C47-1 BE C47-2 GN C47-3 GY C51-2 GY C51-1 GY C16-4 GY C16-3 GY C16-2 GY C16-1 1 5V 2 G (5 V) 3 ESW 1 24 V 2 CL 1 2 3 4 G (24 V) 24 V DM REM DM ALM C37 (CN3) C36 (CN2) C35 (CN1) P14 P13 AVRPCB C42 (CN9) 4 C40 (CN7) C38 (CN5) C39 (CN6) C22 (CN4) ZERO CROSS Flicker REM 5V CL REM RSW PFCL RCL FTH ESW HL CONT H REM DM ALM DM REM FFM 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 1 2 3 4 RD C18-1 BE C18-3 BE C18-5 OE C18-7 C45 (CN12) C41 (CN8) OE 1 5 V YW 2 RSW BE 3 G (5 V) RE C18-2 1 24 V BE C18-4 2 G (24 V) BE C18-6 3 G (5 V) OE C18-8 4 5V C53 (CN14) 1 RD 24 V 2 BK ICFM GY C55-2 1 GY C6-1 GY C55-3 2 GY C20-1 3 RD C29-4 GN C29-5 BE C29-6 BE BE BE BE 1 24 V 2 PFCL 1 24 V 2 RCL 5 C33 1 24 V 2 AES 3 G (24 V) AES GY C54-1 GY C20-2. UNIT DEV SW DEV.3 PE C20-6 PE C20-7 RD C20-8 BE C20-9 PK C20-10 GN C20-11 GY C17-5 GY C17-4 GY C17-3 GY C17-2 GY C17-1 1 2 3 4 5 GY C7-1 GY C7-2 GY C7-3 GY C7-4 GY C7-5 GY C7-6 GY C7-7 GY C7-8 GY C7-9 GY C7-10 GY C7-11 GY C7-12 GY C7-13 GY C7-14 24 V G (24 V) G (5 V) 5V GY C22-14 GY C22-13 GY C22-12 GY C22-11 GY C22-10 GY C22-9 GY C22-8 GY C22-7 GY C22-6 GY C22-5 GY C22-4 GY C22-3 GY C22-2 GY C22-1 C46 1 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ZERO CROSS Flicker REM 5V CL REM RSW PFCL RCL FTH ESW HL CONT H REM DM ALM DM REM FFM C7 (CN7) C5 (CN5) C6 (CN6) C4 (CN4) C2 (CN2) 3 C46 (CN13) C43 (CN10) BK C44 (CN11) LIVE 1 2 3 BK COM 4 WE C50-1 TB2 H COM WE C49-1 H LIVE TB1 BK P12 1 AC LIVE IN 2 WE P11 3 AC COM IN WE C46-2 3 HL COM 2 BK C46-1 1 HL LIVE C32 1 MHPSW 2 G (5 V) 3 5V GY C29-3 GY C29-2 GY C29-1 5V G (5 V) MHPSW 24 V AES G (24 V) 5V G (5 V) LHPSW YW BE RD BN WE 1 2 3 4 5 SM B SM B SM A SM A 24 V 2 24 V MSW 1 RD P1-5 2 GN P1-6 3 TC 24 V TC 1 BK 2 BK 4 5 RD C53-1 BK C53-2 C56 ICFM BK C37-1 RD C5-1 RD C45-1 BE C5-2 BE C45-2 BE C5-3 BE C45-3 OE C5-4 OE C45-4 WE C56-2 WE C35-3 BK C56-1 BK C35-1 GN C46-1 OE C46-2 OE C44-1 BE C44-2 GN C44-3 PE C6-3 PE C6-4 RD C6-5 BE C6-6 PK C6-7 GN C6-8 YW X1 GY C6-1 GY C6-2 GY C6-1 GY C6-2 GY C42-1 GY C42-2 DEVF RD SHORT BE 24 V PK G (24 V) GN TNS YW TNS CONT DB BK C37-4 DEV SW DEV SW BE C56-1 BE C56-2 DEV SW WE OE BE GN 1 2 3 C47 GY GY DEV. 8 A B C D E F G H I J 3-7-9 . *2 For 120 V.Wiring diagram A B C D E F G H I J 195 GY C12-9 GY C12-8 GY C12-7 GY C12-6 GY C12-5 GY C12-4 GY C12-3 GY C12-2 GY C12-1 1 C10-1 3 OE C10-2 2 GN 1 BE C10-3 DM GY C11-6 GY C11-7 GY C11-8 GY C11-9 GY C11-10 220 . *3 For 120 V. UNIT C49 1 C55 1 2 3 40 W 10 Ω BK BK P11 TB10 1 2 3 4 5 6 7 8 RD P15 TB9 P12 C50 1 321 C19 1 3 1 2 3 4 5 6 7 8 9 1011 12 BK C46-1 C20 BK C46-2 GY C54-1 GY C54-2 WE P13 WE P14 21 BK P12 BK P11 P4 LIVE COM P5 TB1 TB2 RD P16 TH3 BK WE RD P15 BK P17 BK BK MC FUSE 40 W 10 Ω BK BK GY GY HL FB DH Optional for 120 V specifications 6 TH2 FTH 1 5V 2 G (5 V) 3 ESW 24 V 24 V G (24 V) G (24 V) G (5 V) G (5 V) 5V 5V C51 2 1 C52 1 2 6 40 W 10 Ω COM 1 2 3 4 C21 RD BE PK GN *1 GY C27-2 GY C27-3 GY C27-4 GY C27-5 GY C27-6 *2 DEVF* 3 TCDSW C18 (CN1) LIVE RSW WE TC CLEANING UNIT BL CL P2 LIVE LIVE TB3 TB4 P3 BK P1-1 BK P1-2 P1 1 2 RD C1-1 4 GN C1-2 5 6 BK P2 BK P3 LIVE LIVE 24 V MSW MSW H TNS TH1 C48 ESW Dev. Georgia 30093 TEL : (770) 729-9786 FAX : (770) 729-9873 Southwestern Region: 2825 West Story Road.S. C. Santa Inés.O. 02130 TEL : 3-83-27-41 FAX : 3-83-78-04 ©1997 MITA INDUSTRIAL CO. Box 40008 Fairfield. New York. 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NY 10019 TEL : (212) 554-2679 FAX : (212) 554-2625 Northeastern Region: 225 Sand Road. LTD. Itasca. Texas 75038-5299 TEL : (972) 659-0055 FAX : (972) 570-5816 MITA COPYSTAR CANADA.