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Mita PointSource Ai 2020 Service Manual

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R
SERVICE
MANUAL
Published in Feb. '99
2AB70762
Revision 2
Point Source Ai2020 S/M (MCA)

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Summary of Contents for Mita PointSource Ai 2020

  • Page 1 SERVICE MANUAL Published in Feb. ’99 2AB70762 Revision 2 Point Source Ai2020 S/M (MCA)
  • Page 2 Service Manual...
  • Page 3 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.
  • Page 4 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. 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.
  • Page 5 indicates that action is required. The specific action required is shown inside the symbol. General action required. Remove the power plug from the wall outlet. Always ground the copier. 1. Installation Precautions WARNING • Do not use a power supply with a voltage other than that specified. Avoid multiple connections to one outlet: they may cause fire or electric shock.
  • Page 6 • Always handle the machine by the correct locations when moving it..• Always use anti-toppling and locking devices on copiers so equipped. Failure to do this may cause the copier to move unexpectedly or topple, leading to injury................•...
  • Page 7 • Check that the power cable covering is free of damage. Check that the power plug is dust-free. If it is dirty, clean it to remove the risk of fire or electric shock..................• Never attempt to disassemble the optical unit in machines using lasers. Leaking laser light may damage eyesight.
  • Page 8 • After maintenance, always check that all the parts, screws, connectors and wires that were removed, have been refitted correctly. Special attention should be paid to any forgotten connector, trapped wire and missing screws..................• Check that all the caution labels that should be present on the machine according to the instruction handbook are clean and not peeling.

  • Page 9: Table Of Contents

    CONTENTS THEORY AND CONSTRUCTION SECTION 1-1 Specifications 1-1-1 Specifications ................... 1-1-1 1-2 Handling Precautions 1-2-1 Handling and storing the imaging unit ..........1-2-1 1-2-2 Storing toner ..................1-2-1 1-3 Mechanical Construction 1-3-1 Parts names and their functions ............1-3-1 1-3-2 Machine cross section ..............1-3-3 1-3-3 Drive system ..................
  • Page 10 2AB-1 3-4 PCB Initial Setting 3-4-1 Main PCB ..................3-4-1 3-4-2 Replacing the engine PCB ............... 3-4-6 3-4-3 Adjustment-free variable resisters (VR) ........... 3-4-7 3-4-4 Printer board (option) ............... 3-4-8 3-5 Self-diagnostics 3-5-1 Self-diagnosis ................... 3-5-1 3-6 Troubleshooting 3-6-1 Image formation problems ..............3-6-1 3-6-2 Paper misfeeds ................
  • Page 11 2AB-1 Main PCB ..................3-7-34 Engine PCB ..................3-7-35 Engine PCB ..................3-7-36 Engine PCB ..................3-7-37 Engine PCB ..................3-7-38 Engine PCB ..................3-7-39 Engine PCB ..................3-7-40 Engine PCB ..................3-7-41 Engine PCB ..................3-7-42 Engine PCB ..................3-7-43 Engine PCB ..................

  • Page 12: Specifications

    1-1 Specifications 1-1-1 Specifications ..................1-1-1...
  • Page 13 1-1-1 Specifications Type ......... Desktop Copying system ....... Dry indirect electrostatic system Originals ........Sheets, books and 3-dimensional objects Maximum size: A3/11" × 17" Original feed system ....Fixed Copy paper ......Plain paper: 80 g/m (metric) for drawer feed 75 g/m (inch) for drawer feed 60 –...
  • Page 14 Developing system ....Dry, reverse developing (magnetic brush) Developer: 2-component, ferrite carrier and N26T black toner Toner density control: toner sensor Toner replenishment: toner cartridge replacement Transfer system ....... Transfer roller Separation system ....Curvature separation Fixing system ......Heat roller Heat source: halogen heater (850 W) Control temperature: 165°C/329°F (at ambient temperature)

  • Page 15: Handling Precautions

    1-2 Handling Precautions 1-2-1 Handling and storing the imaging unit ..........1-2-1 1-2-2 Storing toner ..................1-2-1...

  • Page 16: Handling And Storing The Imaging Unit

    1-2-1 Handling and storing the imaging unit Note the following when handling or storing the imaging unit. • When removing the imaging unit, never expose the drum surface to strong direct light. • Keep the unit at an ambient temperature between –20°C/–4°F and 40°C/104°F and at a relative humidity not higher than 85% RH.

  • Page 17: Mechanical Construction

    1-3 Mechanical Construction 1-3-1 Parts names and their functions ............1-3-1 1-3-2 Machine cross section ..............1-3-3 1-3-3 Drive system ..................1-3-4 1-3-4 Mechanical construction ..............1-3-6 ( 1 ) Paper feed section ..............1-3-6 (1-1) Paper feed from the cassette ........... 1-3-8 (1-2) Paper feed from the bypass table ........

  • Page 18: Parts Names And Their Functions

    1-3-1 Parts names and their functions › fi fi fi & ⁄ ¤ ‹ fi Figure 1-3-1 1 Original holder* 0 Fixing unit felt ( Toner cartridge handle 2 Operation panel ! Contact glass ) Imaging unit 3 Main switch @ Original size indicators ⁄...
  • Page 19 ⁄ ¤ ‹ Inch & › ⁄ ¤ ‹ Metric & › Figure 1-3-2 Operation panel 1 Message display 9 Manual key & Fine mode indicator 2 Error indicator 0 Cursor up/original select key * Normal mode indicator 3 Function key ! Cursor down/paper size select key ( Copy exposure adjustment keys 4 On-line key...

  • Page 20: Machine Cross Section

    1-3-2 Machine cross section To duplex unit or finisher Light path Paper path Figure 1-3-3 Machine cross section 1 Paper feed section (page 1-3-6) 2 Main charging section (page 1-3-11) 3 Optical section (page 1-3-13) 4 Developing section (page 1-3-19) 5 Transfer section (page 1-3-24) 6 Cleaning section (page 1-3-26) 7 Charge erasing section (page 1-3-27)

  • Page 21: Drive System

    1-3-3 Drive system Ó ‡ Ï Î ˝ fi fl › ° ‚ · Œ ´ „ ‰ ˇ & 5 ⁄ ‹ ¤ ∏ ˆ Ø ¨ Í Á Å Figure 1-3-4 Drive system (copier main body) 1 Drive motor pulley * Heat roller gear ˇ...
  • Page 22 As viewed from machine front Figure 1-3-5 Drive system (front side of the imaging unit) 4 Cleaning spiral gear 1 Left developing spiral gear 5 Front drum gear 2 Middle developing spiral gear 3 Cleaning idle gear As viewed from machine rear Figure 1-3-6 Drive system (rear side of the imaging unit) 1 Rear drum gear 4 Right developing spiral gear...

  • Page 23: Mechanical Construction

    1-3-4 Mechanical construction ( 1 ) Paper feed section ‚ ⁄ fi › ‹ ¤ Ï ‡ „ fl ´ Œ ¨ ˆ ‰ ˇ Á ° Ø ∏ Å Í · &* Î Figure 1-3-7 Paper feed section ‹ Pre-transfer guide 1 Bypass table ›...
  • Page 24 The paper feed section consists of the primary feed and secondary feed subsections. Primary feed conveys paper from cassettes 1, 2 or the bypass table to the right and left registration rollers, at which point secondary feed takes place and the paper travels to the transfer section in sync with the printing timing.

  • Page 25: Paper Feed From The Cassette

    2AB-1 (1-1) Paper feed from the cassette The cassette consists of the cassette lift and cassette spring. The cassette can hold up to 250 sheets of paper. Paper is fed from the cassette by the rotation of the paper feed pulley. Print signal: on Start key PVSYNC signal...
  • Page 26 Pre-feed command 600 ms CSDM CS2PFCL 150 ms CSFCL 170 ms 255 ms CSFSW 85 ms 5 – 295 ms 100 ms Timing chart 1-3-2 Paper feed from cassette 2 A 600 ms after the pre-feed command is issued, the cassette drive motor (CSDM) turns on and the cassette 2 paper feed clutch (CS2PFCL) turns on for 150 ms, rotating paper feed pulley 2 to start primary paper feed.

  • Page 27: Paper Feed From The Bypass Table

    2AB-1 (1-2) Paper feed from the bypass table The bypass table can hold up to 50 sheets of paper. When the start key is pressed, the bypass paper feed clutch (BYPPFCL) turns on and the bypass paper feed pulley rotates to convey the paper on the bypass table to the secondary paper feed section.

  • Page 28: 2 ) Main Charging Section

    ( 2 ) Main charging section The main charging section consists of the drum and main charger. The main charger charges the drum so that a latent image is formed on the surface, the charger grid ensuring that the charge is applied uniformly. Main charger grid Main charger wire Main charger...
  • Page 29 2AB-1 At least 500 ms and after the laser diode is turned on. Start key MC REM 100 ms 100 ms 100 ms GRID CONT 100 ms 75 ms 125 ms 100 ms DB CONT 150 ms A: 400 ms when the temperature is 14˚C/57.2˚F or below;...

  • Page 30: 3 ) Optical Section

    ( 3 ) Optical section The optical section consists of the scanner, mirror frame and image scanning unit for scanning and the laser scanner unit (LSU) for printing. Figure 1-3-11 Optical section 1 Scanner 8 Image scanning unit 2 Mirror frame 9 Lens 3 Mirror 1 0 Optical rail...
  • Page 31 2AB-1 Original scanning The original image is illuminated by the exposure lamp (EL) and scanned by the CCD PCB (CCDPCB) in the image scanning unit via the three mirrors, the reflected light being converted to an electrical signal. The scanner and mirror frame travel on the optical rails on the front and rear of the machine unit to scan from side to side.
  • Page 32 Scan signal Fwd. rotation 560 – 800 P 992 P 40 ms 100 ms Rev. rotation 66 P 120 ms 20 ms 50 ms SVSYNC signal 390 – 638 P SHPSW D E F Timing chart 1-3-5 Scanner operation (for an original on the contact glass) A When the start key is pressed and the scan signal turns on, the scanner motor (SM) reverses for 560 to 800 pulses and the exposure lamp (EL) lights to scan the data for shading correction.
  • Page 33 Image printing The image data scanned by the CCD PCB (CCDPCB) is processed in the engine PCB (EPCB) and transmitted as image printing data to the laser scanner unit (LSU). By repeatedly turning the laser on and off, the laser scanner unit forms a static latent image on the drum surface.
  • Page 34 Drum Figure 1-3-14 Laser scanner unit (2) 1 Laser diode: Generates the laser beam which forms a latent image on the drum. 2 Collimator lens: Collimates the diffused laser beam emitted from the laser diode to convert it into a cylindrical beam. 3 Cylindrical lens: Shapes the collimated laser beam to suit the printing resolution.
  • Page 35 The dimensions of the laser beam are as shown in Figure 1-3-15. 70 µm 65 µm Figure 1-3-15 Scanning in the main direction is provided by the rotating polygon mirror, while scanning in the auxiliary direction is provided by the rotating drum, forming a static latent image on the drum.

  • Page 36: 4 ) Developing Section

    ( 4 ) Developing section Toner cartridge Toner hopper spiral Imaging unit Figure 1-3-17 Developing section The developing section consists of the developing roller where a magnetic brush is formed, the doctor blade and the developing spirals that agitate the developer. 1-3-19...
  • Page 37 Magnetic brush forming The developing roller consists of a magnetic roller having five poles and the sleeve roller. The revolution of the sleeve roller around the magnetic roller entrains the developer, which in turn forms a magnetic brush at pole N1 on the magnetic roller. The height of this magnetic brush is regulated by the doctor blade, while the developing result is affected by the positions of the magnet roller poles and the doctor blade.
  • Page 38 TFM1 CN9-12 TFM2 CN9-13 CN9-6 Developing bias DB CHG CN8-14 CN1-10 DB CONT CN8-15 CN1-9 DB REM CN8-13 CN1-11 EPCB HVTPCB Figure 1-3-19 Developing section block diagram Toner density is detected by the toner sensor (TNS). As the developer passes by the sensor section of the toner sensor, the toner sensor detects the ratio of toner to carrier in the developer and converts it into a voltage.
  • Page 39 Toner density control When the imaging unit is installed, the toner feed motor is turned on and off to control toner density based on the specified toner control voltage. Toner empty in the toner cartridge is also detected based on the toner sensor output voltage. Toner empty Toner sensor (toner cartridge replaced)
  • Page 40 E No copying: The toner sensor output voltage is above the no-copying level (3.3 V DC). When the toner sensor output voltage remains above the no-copying level for 540 ms, copying is disabled. F Toner empty exited: The toner sensor output voltage is below the toner empty exit level (2.4 V DC).

  • Page 41: 5 ) Transfer Section

    2AB-1 ( 5 ) Transfer section Transfer roller Transfer toner removal blade Figure 1-3-21 Transfer section The transfer section consists of the transfer roller and transfer toner removal blade. A high voltage generated by the transfer high-voltage transformer PCB (HVTPCB) is applied to the transfer roller mounted under the drum.
  • Page 42 2AB-1 Secondary paper feed start 50 ms VIDEO signal 320 ms 220 ms 36 ms PVSYNC 45 – 360 ms signal 50 ms 50 ms × 50 ms 1910 ms TC REM 50 ms TC CHG 480 ms 30 ms 30 ms 30 ms TC CONT...

  • Page 43: 6 ) Cleaning Section

    ( 6 ) Cleaning section Figure 1-3-23 Cleaning section 1 Drum 2 Cleaning blade 3 Cleaning spiral 4 Lower cleaning seal The cleaning section consists of the cleaning blade that removes residual toner from the drum surface after the transfer process and the cleaning spiral that carries the residual toner back to the waste toner tank.

  • Page 44: 7 ) Charge Erasing Section

    ( 7 ) Charge erasing section Cleaning lamp Figure 1-3-24 Charge erasing section The cleaning lamp (CL) consists of 30 LEDs which remove residual charge from the drum surface. CL REM CN5-10 Drum EPCB Figure 1-3-25 Charge erasing block diagram 1-3-27...
  • Page 45 2AB-1 At least 500 ms and after the laser diode is turned on. Start key 2010 ms MC REM 100 ms 100 ms GRID CONT 100 ms 100 ms 75 ms 125 ms 100 ms DB CONT 150 ms A: 400 ms when the temperature is 14˚C/57.2˚F or below;...

  • Page 46: 8 ) Fixing And Eject Section

    ( 8 ) Fixing and eject section The fixing and eject section consists of the parts shown in Figure 1-3-26. When paper reaches the fixing section after the transfer process, it passes between the press roller and heat roller, which is heated by the fixing heater (H). Pressure is applied by the fixing pressure springs so that the toner on the paper is melted, fused and fixed onto the paper.
  • Page 47 PSPCB Heat roller CN2-1 CN2-2 EPCB Figure 1-3-27 Fixing section block diagram 1-3-30...
  • Page 48 Heating the heat roller and detecting temperature Figure 1-3-28 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 themistor (FTH) The heat roller is heated by the fixing heater (H) inside it;...
  • Page 49 Fixing temperature control MSW: On Preheat mode Secondary stabilization fixing 165°C/329°F temperature Preheat 150°C/302°F temperature 130°C/266°F Primary stabilization fixing temperature 1.5 s DB REM 100 ms 100 ms 5 – 15 s Full speed Half speed CFM1 30 – 120 s Full speed CFM2 Half speed...
  • Page 50 Fixing temperature control for paper feed from the bypass table To enhance the fixing performance for thick paper, the fixing temperatures during paper feed from the bypass table are set higher than those during paper feed from the cassette. Fixing temperature control during copying (when the ambient temperature is 15 to 25°C/59 to 77°F) Cassette feed Bypass feed...

  • Page 51: 9 ) Switchback Section

    ( 9 ) Switchback section The switchback section switches the paper path to convey the paper to the finisher* or to the duplex unit* after coping the first face. *Optional. Figure 1-3-30 Switchback section 1 Upper switchback roller 5 Switchback guide 2 Lower switchback roller 6 Eject motor (EM) 3 Right feedshift guide...
  • Page 52 Switching the paper path • Duplex copy (reversing the paper) In duplex copy mode, after copying on the first face, the paper is conveyed to the eject section (inside the left of the copier). The switchback solenoid (SBSOL) then turns on and the left and right feedshift guides activate to switch the paper path to the duplex unit (on the right side of the copier).
  • Page 53 Paper switchback operation timing 110 ms 200 ms Fwd. rotation Rev. rotation SBSOL DUPPCSW1 (Duplex unit) Timing chart 1-3-9 A When the eject switch (ESW) is turned on after copying on the first face, the eject motor (EM) starts rotating forward to convey the paper to the eject section (inside the left of the copier).

  • Page 54: Electrical Parts Layout

    2-1 Electrical Parts Layout 2-1-1 Electrical parts layout ................ 2-1-1...
  • Page 55 2-1-1 Electrical parts layout Machine front Machine inside Machine rear Figure 2-1-1 PCBs 1. Main PCB (MPCB) ..........Controls the operation section, engine PCB and image data processing. 2. Power source PCB (PSPCB) ......Generates 24 V DC, +12 V DC, –12 V DC, 5 V DC.
  • Page 56 10. LCD contrast adjustment volume PCB ....Adjusts the contrast of the LCD. (LCDVRPCB) 11. LCD ..............Displays copy modes and messages. 12. Humidity sensor PCB (HUMPCB) ....... Detects external humidity and temperature. 13.* Feeder heater PCB (FHPCB) ......Controls the feeder heater* the cassette 2.
  • Page 57 23 5 27,30 8 9 10 Machine front Machine inside Machine rear Figure 2-1-2 Switches and sensors 1. Main switch (MSW) ..........Turns the AC power on and off. 2. Safety switch 1 (SSW1) ........Breaks the safety circuit when the front cover is opened;...
  • Page 58 8. Cassette 1 paper size switch 1 (CS1PSSW1) ..Detects the length of paper in cassette 1. 9. Cassette 1 paper size switch 2 (CS1PSSW2) ..Detects the length of paper in cassette 1. 10. Cassette 1 paper size switch 3 (CS1PSSW3) ..Detects the length of paper in cassette 1.
  • Page 59 Machine front Machine inside Machine rear Figure 2-1-3 Motors and clutches 1. Drive motor (DM) ..........Drives the machine. 2. Scanner motor (SM) ..........Drives the scanner. 3. Toner feed motor (TFM) ........Replenishes toner. 4. Cooling fan motor 1 (CFM1) ....... Cools the machine interior. 5.
  • Page 60 Machine front Machine inside Machine rear Figure 2-1-4 Others 1. Exposure lamp (EL) ..........Exposes originals. 2. Cleaning lamp (CL) ..........Removes residual charge from the drum surface. 3. Fixing heater (H) ..........Heats the heat roller. 4. Fixing unit thermostat 1 (TH1) ......Prevents overheating in the fixing section.

  • Page 61: Detection Of Paper Misfeeds

    2-2 Detection of Paper Misfeeds 2-2-1 Paper misfeed detection ..............2-2-1 2-2-2 Paper misfeed detection conditions ..........2-2-2...

  • Page 62: Paper Misfeed Detection

    2-2-1 Paper misfeed detection When a paper jam occurs, the copier immediately stops copying and displays a message and graphic indicating the jam location on the operation panel. To remove the jammed paper, open the drawer, right side cover or eject cover as necessary. To reset the paper misfeed detection, open and close each cover to turn the safety switch off and on.

  • Page 63: Paper Misfeed Detection Conditions

    2-2-2 Paper misfeed detection conditions • Either the registration switch (RSW), eject switch (ESW) or cassette feed switch (CSFSW) is on when the main switch is turned on. • The registration switch (RSW) does not turn on within 1695 ms after the paper feed clutch (CS1PFCL) turns on.
  • Page 64 • The eject switch (ESW) does not turn off within 2290 ms after the registration clutch (RCL) turns off. 2290 ms Timing chart 2-2-4 • The registration switch (RSW) does not turn off within the specified time [depending on the paper size (see Table 2-2-1)] after the registration clutch (RCL) turns on. Specified time Timing chart 2-2-5 Table 2-2-1...
  • Page 65 • The cassette feed switch (CSFSW) does not turn on within 1695 ms after the cassette 2 paper feed clutch (CS2PFCL) has turned on. CS2PFCL 1695 ms CSFSW Timing chart 2-2-6 • The copier registration switch (RSW) does not turn on within 2120 ms after the cassette feed switch (CSFSW) has turned on.

  • Page 66: Operation Of The Pcb

    2-3 Operation of the PCB 2-3-1 Power source PCB ................2-3-1 2-3-2 Main PCB ..................2-3-3 2-3-3 Engine PCB ..................2-3-4 2-3-4 Motor PCB ..................2-3-6 2-3-5 Operation unit PCB ................2-3-7 2-3-6 Cassette motor PCB ................. 2-3-8...

  • Page 67: Power Source Pcb

    2-3-1 Power source PCB PSPCB AC supply 24 V DC Noise 24 V DC D201 output filter Rectifier circuit C203 circuit circuit L001 C101 Overvoltage detection circuit Fixing heater Q101 control circuit 5 V DC 5 V DC Switching output control C302 C303...
  • Page 68 The power source PCB (PSPCB) is a switching regulator that generates 5 V DC, ±12 V DC and 24 V DC from the AC supply. It consists of a noise filter circuit, rectifier circuit, switching control circuit, 24 V DC output circuit, 5 V DC output circuit, ±12 V DC output circuit and fixing heater control circuit as shown in Figure 2-3-1.

  • Page 69: Main Pcb

    2-3-2 Main PCB MPCB Backup Lithium circuit battery Operation unit PCB DRAM work and Flash SRAM image memory memory Image storage memory 16 bits board 16 bits 8 bits 16 bits (AD bus) (option) 8 bits Printer unit image System bus (option) memory (DB bus)

  • Page 70: Engine Pcb

    2-3-3 Engine PCB EPCB Finisher* EEP- RESET Reset RESET IC34 IC45 Analog IC40 Sensors Address bus circuit IC30 Data bus IC14 High temperature detection circuit IC53 FIFO Motor IC46 IC35 driver IC47 IC59 INPCB, IC29 MPCB motors, clutches Switches, sensors IC50 SRDF* IC28...
  • Page 71 unit. CPU IC40 controls the charging, developing and fixing systems with the external D/ A converter IC28 and its built-in A/D converter. The high temperature detection circuit forces the fixing heater (H) off after judging an abnormally high temperature from the temperature data detected by the fixing unit thermistor (FTH).

  • Page 72: Motor Pcb

    2-3-4 Motor PCB MOTPCB 24 V DC 24 V DC 24VIN 24 V DC SM A Stepping SM _A motor SM B driver SM _B SMREF EPCB 24 V DC EM CLK Stepping motor EM R/L driver EM REM 24V-2 Duplex unit (option)

  • Page 73: Operation Unit Pcb

    2-3-5 Operation unit PCB Source Scan signals signals Key switch matrix matrix circuit Return Scan circuit signals signals Address bus Data bus Main RESET Reset signal controller circuit SRAM Negative supply generation circuit IC5 Figure 2-3-5 Operation unit PCB block diagram The operation unit PCB consists of CPU IC1, ROM IC3, LCD controller IC4, SRAM IC6, the LED matrix circuit, the key switch matrix circuit, the reset circuit and the negative supply generation circuit.

  • Page 74: Cassette Motor Pcb

    2-3-6 Cassette motor PCB 24 V DC 24 V DC CS2PFCL 5 V DC CSFCL CSDM A Motor coil CSDM B 5 V DC CS2PSW Stepping energiza- CSFSW 24 V DC tion motor 24 V DC CSDM pulse driver IC SCAN generation CSDM _A...

  • Page 75: Installation

    3-1 Installation 3-1-1 Unpacking and installation ..............3-1-1 ( 1 ) Installation environment ............3-1-1 ( 2 ) Installation procedure ..............3-1-2 3-1-2 Setting initial copy modes ............... 3-1-13 3-1-3 Installing the total counter (option) ..........3-1-14 3-1-4 Installing the image storage memory board (option) ....... 3-1-16 3-1-5 Installing the ejected paper overflow sensor (option) ......

  • Page 76: Unpacking And Installation

    3-1-1 Unpacking and installation ( 1 ) Installation environment 1. Temperature: 10-32.5°C/50-95°F 2. Humidity: 20-80% RH 3. Power supply: 120 V AC, 8.5 A 220-240 V AC, 4.0 A 4. Power source frequency: 50 Hz ± 0.3%/60 Hz ± 0.3% 5.

  • Page 77: 2 ) Installation Procedure

    ( 2 ) Installation procedure Start Unpack. Unpacking the imaging unit. Remove the pins. Remove the original holder spacers (For 220-240 V specifications only) Remove the tapes. Remove the drawer spacers. Remove the fixing unit spacers. Install the imaging unit. Install the fixing unit felt.
  • Page 78 Original holder spacers (For 220-240 V specitications only) Fixing unit felt Pins holding the scanner Fixing unit spacers Pin holding the mirror frame Drawer spacers Figure 3-1-2 3-1-3...
  • Page 79 2AB-1 Unpack. &* For 220 - 240 V models For 120 V models Figure 3-1-3 Unpacking 1 Front top pads @ Hinge joints 2 Rear top pads # Imaging unit 3 Copier $ Accessory case 4 Machine cover % Power cord 5 Bottom machine cover ^ Original holder spacers * 6 Bottom pads...
  • Page 80 Unpacking the imaging unit. Figure 3-1-4 Unpacking the imaging unit 1 Leaflet 6 Bottom pads 2 Fixing unit felt 7 Bar code label 3 Upper pads 8 Case 4 Light-proof sheet 9 Plastic bag 5 Imaging unit 3-1-5...
  • Page 81 Remove the pins. 1. Remove the tapes and the two pins holding the scanner and the pin holding the mirror frame on the left cover. Pin holding the mirror frame Pins holding the scanner Figure 3-1-5 Remove the tapes. 1. Remove the four tapes holding the original holder, cassette 1 and the front and right covers.
  • Page 82 Remove the drawer spacers. 1. Open cassettes 1 and 2 and remove the tape holding the Width adjustment guide. 2. Remove the tapes and the two drawer spacers. 3. Remove the tape holding the Length adjustment guide (120 V specifications only).
  • Page 83 Install the imaging unit. 1. Take the imaging unit out of the package and remove the light-proof sheet. Imaging unit Light-proof sheet Tapes Figure 3-1-9 2. Open the front cover. 3. Turn the imaging unit release lever to the right. The right side cover opens slightly when the release lever is turned to the right.
  • Page 84 5. Holding the imaging unit by the edge handle, press the upper handle completely flat and insert the unit into the copier by sliding it along the guide rail. Imaging unit upper handle Imaging unit Figure 3-1-11 6. Lock the imaging unit by turning the imaging unit release lever to the left. 7.
  • Page 85 Install the fixing unit felt. 1. Open the eject cover. 2. Install the fixing unit felt packed with the imaging unit to the fixing section. Fixing unit felt Figure 3-1-13 3. Close the eject cover. Connect the power plug. 1. Connect the power code to the inlet. 2.
  • Page 86 Initialize the imaging unit. Caution: Do not insert the toner cartridge before initialization of the imaging unit completes. 1. Turn the main switch on. Aging starts and, after two minutes, the “IU Initialized. Set Toner Cartridge.” message is displayed. Main switch Figure 3-1-15 Install the toner cartridge.
  • Page 87 3. Insert the toner cartridge completely, aligning it with the guide rail. Figure 3-1-17 Clean the main charger. 1. Hold the main charger cleaning knob and pull and push it back and forth 2 or 3 times. Push the knob back in completely. Figure 3-1-18 2.

  • Page 88: Setting Initial Copy Modes

    3-1-2 Setting initial copy modes Factory settings are as follows: Function Contents Factory setting Switching between double and single counts Double counts Setting auto start Auto start on Setting auto clear time 60 s Setting auto preheat time 15 min. Setting auto shutoff time 30 min.

  • Page 89: Installing The Total Counter (Option)

    3-1-3 Installing the total counter (option) Total counter installation requires the following parts: Total counter (P/N 65027340) Cross-head bronze binding screw BVM3 × 05 (P/N B1303050) Procedure 1. Turn the main switch off and disconnect the power plug from the wall outlet. 2.
  • Page 90 2-pin connector 2-pin connector Total counter mount Screw × Screw (cross-head bronze binding screw BVM3 Total counter Figure 3-1-20 8. Fit the total counter to the total counter mount using the cross-head bronze binding screw BVM3 × 05. 9. Thread the 2-pin connector of the total counter through the aperture and connect it to the 2-pin connector on the copier.

  • Page 91: Installing The Image Storage Memory Board (Option)

    3-1-4 Installing the image storage memory board (option) Image storage installation requires one of the following parts: Memory board 2M (P/N 35960150) Memory board 4M (P/N 35960160) Memory board 8M (P/N 35960170) Procedure 1. Turn the main switch off and disconnect the power plug from the wall outlet. 2.

  • Page 92: Installing The Ejected Paper Overflow Sensor (Option)

    3-1-5 Installing the ejected paper overflow sensor (option) Ejected paper overflow sensor installation requires the following parts: Paper switch (P/N 66006360) Eject detection mount (P/N 2AB60020) × Triple tap-tite P screw M3 06 (black; P/N B4343060) Procedure • Installing the ejected paper overflow sensor 1.

  • Page 93: Installing The Isu Heater (Service Part)

    3-1-6 Installing the ISU heater (service part) ISU heater installation requires the following parts: ISU heater (P/N 35968060) Cable holder (P/N M2105410) Procedure 1. Remove the contact glass. 2. Keep the scanner and mirror frame at the machine right. 3. Peel the backing off the ISU heater and attach the heater at the machine left as shown in the diagram.

  • Page 94: Installing The Feeder Heater (Service Part)

    3-1-7 Installing the feeder heater (service part) Feeder heater installation requires the following parts: Feeder heater/cable set (P/N 36069700) Items included in the set Feeder heater (P/N 36068020) Feeder heater relay cable (P/N 36068010) Clamp (P/N M2105400) Feeder heater PCB (SP)(P/N 35993450) Feeder heater wire (P/N 2AB68060) Spacer KGLS-3S (P/N M2108000) ×...
  • Page 95 4. Connect the feeder heater 2-pin connector to the 2-pin plug on the feeder heater relay cable. 5. Connect the pin on the red wire of the feeder heater relay cable to pin 5 of CN1 on the cassette motor PCB. 6.
  • Page 96 Feeder heater PCB Screw Spacers Figure 3-1-26 2-pin connector 6-pin connector Feeder heater wire Figure 3-1-27 3-1-21...
  • Page 97 10. Connect the 2-pin connector on the wire from pin 2 of CN1 on the feeder heater PCB to the 2-pin connector of the main cable. 2-pin connector from the main cable 2-pin connector from the feeder heater PCB Main cable Wire from CN 1 Figure 3-1-28 11.
  • Page 98 2AB-2 14. Enter the maintenance mode. 15. Select function No. 374. 16. Set the value to 0 to cancel the auto shutoff function. If the function is used, the feeder heater turns off when the copier enters the auto shutoff mode. 17.
  • Page 99 2AB-2 This page is intentionally left blank 3-1-24...

  • Page 100: Maintenance Mode

    3-2 Maintenance Mode 3-2-1 Maintenance mode ................3-2-1 ( 1 ) Executing a maintenance function ..........3-2-1 ( 2 ) Maintenance function list ............3-2-2 ( 3 ) Contents of maintenance functions ........... 3-2-6 ( 4 ) Classification and storing of data set in maintenance mode ... 3-2-93...
  • Page 101 3-2-1 Maintenance mode The copier is equipped with maintenance mode for service and repair of the machine. ( 1 ) Executing a maintenance function Start ..Entering maintenance mode Enter 10871087. "MAINTENANCE MODE 000" is shown on the display.
  • Page 102 ( 2 ) Maintenance function list Function Initial Section Function name value List Outputting the own-status report — output Completion Exiting maintenance mode — Drive, Moving the scanner to the DF scanning position — paper Checking the drive motor operation —...
  • Page 103 Function Initial Section Function name value Optical Adjusting the ISU gain — Adjusting the LSU printing start position in the main scanning direction Adjusting the LSU printing end position in the main scanning direction Adjusting the LSU printing start position in the main scanning direction for the second face Adjusting the LSU printing end position in the main scanning direction for the second face...
  • Page 104 Function Initial Section Function name value Timing Adjusting the center line of cassette 2 adjustment Adjusting the center line of special cassette 1 (cont.) Adjusting the center line of special cassette 2 Adjusting the bypass center line Adjusting the center line for duplex copying Adjusting the center line of the original on the contact glass Adjusting the DF center line...
  • Page 105 Function Initial Section Function name value Counts Checking and clearing the waste toner tank count — (cont.) Entering the service telephone No. — — Displaying the ROM version — Displaying the engine ROM version — Checking and clearing the printer count Modes Switching between double and single counts Setting auto start...
  • Page 106 ( 3 ) Contents of maintenance functions Function Description Outputting the own-status report [Description] Outputs the list of settings in maintenance mode. [Purpose] Used before and after replacing the main PCB. [Method] Press the start key. A sheet of the own-status report as in the figure below is output and the current function is exited.
  • Page 107 2AB-1 Function Description Exiting maintenance mode [Description] Exits maintenance mode and returns to normal mode. [Purpose] Used when ending maintenance mode. [Method] Press the start key. The copier returns to normal mode. [Caution] If the printer board (optional) is installed, turn the copier power off and on after the copier returns to normal mode.
  • Page 108 Function Description Checking the drive motor operation [Description] Operates the drive motor. [Purpose] To check the operation of the drive system and paper conveying system. [Method] Press the start key. The drive motor is turned on. [Completion] Press the CA/reset key. The drive motor stops and the current function is exited.
  • Page 109 Function Description Display (switch name) Status (cont.) B.SIZE (bypass paper size switch) 5: A3/11" 1: B4 3: A4/8 " 7: B5 6: A5/5 " 2: B6 0: A6 (all widthwise) P.E (cassette 1 paper switch) On, off × SIZE (cassette 1 paper size switch 1/2/3/4) B: A3/11"...
  • Page 110 Function Description Checking clutch operation 1 [Description] Turns individual clutches on and off. [Purpose] To check clutch operation. [Method] 1 Press the start key. 2 Enter the number specified for the clutch to be checked with the numeric keys. The bit on the display corresponding to the clutch being turned on changes from 0 to 1.
  • Page 111 Function Description Checking clutch operation 2 [Description] Turns individual clutches on and off. [Purpose] To check clutch operation. [Method] 1 Press the start key. 2 Enter the number specified for the clutch to be checked with the numeric keys. The bit on the display corresponding to the clutch being turned on changes from 0 to 1.
  • Page 112 Function Description Setting the folio width [Description] Changes the image area by setting the width of the folio paper used. [Purpose] To be set according to the width of the paper; when the setting is shorter than the actual paper used, the right and left sides of the image are not printed.
  • Page 113 Function Description Adjusting the amount of slack in the paper of cassette 2 [Description] Adjusts the amount of slack in the paper when cassette 2 is used. [Purpose] Used when paper from cassette 2 is missing part of the image or has an irregular image at the leading edge, or when paper is Z-folded.
  • Page 114 Function Description Adjusting the amount of slack in the paper of special cassette 2 [Description] Adjusts the amount of slack in the paper when special cassette 2 (optional) is used. [Purpose] Used when paper from the special cassette 2 is missing part of the image or has an irregular image at the leading edge, or when paper is Z-folded.
  • Page 115 Function Description Checking the switches on cassette 2 [Description] Displays the status of the switches on cassette 2. [Purpose] To check the operation of the switches on cassette 2. [Method] 1 Press the start key. 2 Select the switch to be checked with the cursor up or down keys. The status of the selected switch is displayed.
  • Page 116 Function Description Checking the switches on special cassette 1 [Description] Displays the status of the switches on special cassette 1 (optional). [Purpose] To check the operation of the switches in special cassette 1 (optional). [Method] 1 Press the start key. 2 Select the switch to be checked with the cursor up or down keys.
  • Page 117 Function Description Checking the switches on special cassette 2 [Description] Displays the status of the switches on special cassette 2 (optional). [Purpose] To check the operation of the switches in special cassette 2 (optional). [Method] 1 Press the start key. 2 Select the switch to be checked with the cursor up or down keys.
  • Page 118 Function Description Checking the eject motor operation [Description] Switches the eject motor on and off. [Purpose] To check the operation of the switchback section. [Method] Press the start key. The eject motor is turned on. [Completion] Press the CA/reset key. The eject motor stops and the current function is exited.
  • Page 119 Function Description Checking the switchback section solenoid operation [Description] Turns the switchback section solenoid on and off. [Purpose] To check the switchback section solenoid operation. [Method] 1 Press the start key. 2 Enter the number specified for the solenoid to be checked using the numeric keys.
  • Page 120 Function Description Setting the grid control voltage [Description] Sets the grid control voltage. [Purpose] Used when the drum has been replaced. [Method] Press the start key. The current setting is displayed. [Setting] 1 Change the setting using the numeric keys. ±...
  • Page 121 Function Description Adjusting the surface potential when copying postcards (for 100 V specifications only) [Description] Sets the drum surface potential when postcards are fed from the bypass table. The grid control voltage does not change when this setting is changed. [Purpose] This adjustment is for 100 V specification machines only.
  • Page 122 Function Description Displaying toner data [Description] Displays the toner data in real time. [Purpose] Check the displayed data when a background appears on the copy image. [Method] Press the start key. The following items are shown. CTRL:XXX SENS:XXX TMP:XXX CTRL: toner control voltage (70 to 80) SENS: toner sensor output voltage (120 to 140) TMP: ambient temperature (182 to 117 for 10 to 32°C) The value in the parentheses above is within correct setting range.
  • Page 123 Function Description Checking and clearing the total drive time of the drive motor [Description] Checks, changes or clears the total drive time of the drive motor. When replacing (initializing) the imaging unit, the total drive time is automatically cleared. [Purpose] Used to check the status of the imaging unit.
  • Page 124 Function Description Adjusting the fixing control temperature [Description] Sets the fixing control temperature. [Purpose] Used when a fixing problem occurs. [Method] Press the start key. The current setting is displayed. [Setting] 1 Change the setting using the numeric keys. Description Setting range Initial value Fixing control temperature...
  • Page 125 Function Description Resetting the fixing problem detection [Description] Resets service call code C60 (fixing problem). [Purpose] Used after the cause of the fixing problem is eliminated. [Method] Press the start key. After resetting, “COMPLETED” is displayed. [Completion] Press the CA/reset key. The current function is exited. Adjusting the ISU gain [Description] Displays the ISU gain data in real time.
  • Page 126 Function Description Adjusting the LSU printing start position in the main scanning direction for the second face [Description] Adjusts the image printing start position in the main scanning direction for the second face when the duplex unit (optional) is used. [Purpose] To be used when the left margin of the second face of the duplex copy is not within the specified range.
  • Page 127 Function Description Adjusting the LSU printing end position in the main scanning direction for the second face [Description] Adjusts the image printing end position in the main scanning direction for the second face when the duplex unit (optional) is used. [Purpose] To be used when the right margin of the second face of the duplex copy is not within the specified range.
  • Page 128 Function Description Adjusting the shading position [Description] Adjusts the scanner stop position in shading while displaying the gain data of the ISU. [Purpose] Used when replacing any components or parts in the optical section. [Method] Press the start key. The scanner moves to the shading position, and the exposure lamp turns on.
  • Page 129 Function Description Adjusting home position with the DF [Description] Adjusts the scanner home position when the SRDF (optional) is used. [Purpose] No change is necessary in the field since changing the setting affects the original reading start position only, and there are no other effects on the image.
  • Page 130 Function Description Adjusting the magnification in the main scanning direction with the original on the contact glass [Adjustment] Refer to page 3-3-33. Adjusting the magnification in the main scanning direction with the original fed from the DF [Description] Adjusts the magnification in the main scanning direction when the SRDF (optional) is used.
  • Page 131 Function Description Adjusting the magnification in the auxiliary scanning direction with the original fed from the DF [Description] Adjusts the magnification in the auxiliary scanning direction when the SRDF (optional) is used. [Purpose] Used when the magnification in the auxiliary scanning direction is incorrect with the SRDF.
  • Page 132 Function Description Adjusting detection of the original width [Description] Sets the criteria to be used in detecting each original width. [Purpose] Used when an original width is not detected correctly. [Method] Press the start key. [Setting] 1 Select an original width using the cursor down key and press the start key.
  • Page 133 Function Description Adjusting the printing start position in the auxiliary scanning direction [Adjustment] Refer to page 3-3-14. Adjusting the scanning start position of the original on the contact glass [Adjustment] Refer to page 3-3-31. Adjusting the scanning start position of the original fed from the DF [Description] Adjusts the start timing of original scanning when the SRDF (optional) is used.
  • Page 134 Function Description Adjusting the printing start position in the auxiliary scanning direction for copying the second face [Description] Adjusts the image printing start timing in the auxiliary scanning direction for the second face when the duplex unit (optional) is used. [Purpose] To be used when the leading edges of the original and copy image on the second face do not align.
  • Page 135 Function Description Adjusting the scanning end position of the original fed from the DF [Description] Adjusts the end position of original scanning when the SRDF (optional) is used. [Purpose] Used if the trailing edge of the original does not agree with that of the copy image when the SRDF is used.
  • Page 136 Function Description Adjusting the printing end position in the auxiliary scanning direction for copying the second face [Description] Adjusts the image printing end position in the auxiliary scanning direction for the second face when the duplex unit (optional) is used. This is to be set as an offset value for the setting in function No.
  • Page 137 Function Description Adjusting the center line of cassette 1 [Adjustment] Refer to page 3-3-13. Adjusting the center line of cassette 2 [Adjustment] Refer to page 3-3-13. 3-2-37...
  • Page 138 Function Description Adjusting the center line of special cassette 1 [Description] Adjusts the image center line in printing when paper is fed from special cassette 1 (optional). [Purpose] Used if the center line of the original does not agree with that of the copy image when paper is fed from special cassette 1.
  • Page 139 Function Description Adjusting the bypass center line [Adjustment] Refer to page 3-3-13. Adjusting the center line for duplex copying [Description] Adjusts the image center line in printing when the duplex unit (optional) is used. This is to be set as an offset value for the setting in function Nos. 120 to 124, adjustment of the center line for each paper feed location.
  • Page 140 Function Description [Method] (cont.) Press the start key. [Setting] 1 Change the display to the paper size to be adjust using the cursor down key. Display Paper to be set All sizes are set. A5 (longitudinal) B4 (longitudinal) A4 (longitudinal), folio B5 (lateral), B4 A4 (lateral), A3 ×...
  • Page 141 Function Description Adjusting the center line of the original on the contact glass [Adjustment] Refer to page 3-3-30. Adjusting the DF center line [Description] Adjusts the original scanning centerline when the SRDF (optional) is used. [Purpose] Used if the center of the original does not agree with that of the copy image when the SRDF is used.
  • Page 142 Function Description 2 Press the keys on the operation panel in the order shown below to (cont.) check key function. If the keys are entered correctly, the cor responding indicators light up. If the keys are not entered correctly, "Error" and the correct key names are displayed. 3 After all the keys are entered, “OK”...
  • Page 143 Function Description Lighting all the indicators and display on the operation panel [Description] Lights the indicators and message display on the operation panel. [Purpose] Used to check the indicators and display on the operation panel. [Method] Press the start key. All the indicators on the operation panel light, and all the dots of the message display (LCD) light.
  • Page 144 Function Description Checking the switches on the DF [Description] Displays the status of the switches on the SRDF (optional). [Purpose] To check the operation of the switches on the SRDF. [Method] 1 Press the start key. 2 Select the switch to be checked using the cursor up/down keys. The status of the selected switch is displayed.
  • Page 145 Function Description Checking the operation of the DF clutches and solenoids [Description] Turns on and off individual clutches and solenoids on the SRDF (optional). [Purpose] To check the operation of clutches and solenoids when the SRDF is used. [Method] 1 Press the start key. 2 Enter the number specified for the clutch or solenoid to be checked using the numeric keys.
  • Page 146 Function Description Outputting test patterns [Description] Outputs test patterns stored in the copier. [Purpose] Used to check performance after an image printing problem or the position of the laser scanner unit is corrected. [Method] 1 Press the start key. 2 Select the original size to A3/LED (11" × 17") or A4R/LET (8 "...
  • Page 147 Function Description Outputting VTC patterns [Description] Outputs VTC patterns stored in the copier. [Purpose] Used to check for performance after an image printing problem is rectified. [Method] 1 Press the start key. 2 Select a paper source using the cursor down key. Display Paper feed position Cassette 1...
  • Page 148 Function Description Outputting test patterns as duplex copy [Description] Outputs test patterns stored in the copier as a duplex copy. [Purpose] Used to check performance after an image printing problem has been corrected. [Method] 1 Press the start key. 2 Set the original size to A3/LED (11" × 17") or A4R/LET (8 "...
  • Page 149 Function Description Outputting VTC patterns via the switchback [Description] Outputs VTC patterns stored in the copier and ejects them from the right side of the copier via the switchback. [Purpose] Used to check the switchback operation when the duplex unit (optional) is attached.
  • Page 150 Function Description Outputting VTC patterns face-up [Description] Outputs VTC patterns stored in the copier and ejects them face-up from the right side of the copier. [Purpose] Used to check the eject to finisher operation when the finisher (optional) is attached. [Method] 1 Press the start key.
  • Page 151 Function Description Outputting VTC patterns as duplex copy [Description] Outputs VTC patterns stored inthe copier as a duplex copy. [Purpose] Used to check performance after an image printing problem as a duplex copy has been corrected. [Method] 1 Press the start key. 2 Select a paper source using the cursor down key.
  • Page 152 Function Description Setting the copy count for waste toner tank replacement [Description] Sets the number of sheets of paper to be handled after a new waste toner tank is fitted until overflow is indicated. [Purpose] Used to change the time of replacing the waste toner tank. [Method] Press the start key.
  • Page 153 Function Description Setting the copy limit after the waste toner tank overflow detection [Description] Sets the number of sheets of paper that can be copied after waste toner tank overflow is detected. [Method] Press the start key. The current setting is displayed. [Setting] 1 Change the setting using the numeric keys.
  • Page 154 Function Description Checking and clearing the DF original count [Description] Checks, changes or clears the original feed count of the SRDF (optional). [Purpose] Used to check the time for replacing maintenance parts. Also used to return the count to the number as was before replacement of the main PCB.
  • Page 155 Function Description Checking and clearing the scan count [Description] Checks, changes or clears the scan count. [Purpose] Used to check the time for replacing maintenance parts. Also used to return the count to the number as was before replacement of the main PCB.
  • Page 156 Function Description Checking and clearing the tolal count [Description] Checks or clears the tolal count of the printer. The count indicated in the total counter is the sum of copy count in function No. 362 and printer count in function No. 369. [Purpose] Used to check the time for replacing maintenance parts.
  • Page 157 Function Description Checking and clearing the maintenance call count [Description] Checks, changes, or clears the count of the maintenance call counter. [Purpose] Used to check the time for maintenance. Also used to return the count to the number as was before replacement of the main PCB. [Method] Press the start key.
  • Page 158 Function Description Checking and clearing the count for cassette 1 [Description] Checks, changes, or clears the count of the cassette 1 counter. [Purpose] Used to check the time for replacing maintenance parts. Also used to return the count to the number as was before replacement of the main PCB.
  • Page 159 Function Description Checking and clearing the count for cassette 2 [Description] Checks, changes, or clears the count of the cassette 2 counter. [Purpose] Used to check the time for replacing maintenance parts. Also used to return the count to the number as was before replacement of the main PCB.
  • Page 160 Function Description Checking and clearing the count for special cassette 1 [Description] Checks, changes, or clears the count of the (optional) special cassette 1 counter. [Purpose] Used to check the time for replacing maintenance parts. Also used to return the count to the number as was before replacement of the main PCB.
  • Page 161 Function Description Checking and clearing the count for special cassette 2 [Description] Checks, changes, or clears the count of the (optional) special cassette 2 counter. [Purpose] Used to check the time for replacing maintenance parts. Also used to return the count to the number as was before replacement of the main PCB.
  • Page 162 Function Description Checking and clearing the copy count [Description] Checks, changes or clears the copy count. [Purpose] Used to check the time for replacing maintenance parts. Also used to return the count to the number as was before replacement of the main PCB.
  • Page 163 Function Description Checking and clearing the IU developing count [Description] Checks, changes or clears the developing count of the imaging unit. When replacing the imaging unit with a new one, the developing count is automatically cleared. [Purpose] Used to check the status of the imaging unit or return the count to the number as was before replacement of the engine PCB.
  • Page 164 Function Description Checking and clearing the waste toner tank count [Description] Checks, changes or clears the count of the waste toner tank. When running function No. 065, the waste toner tank count is automatically cleared. [Purpose] Used to check the status of the waste toner tank or return the count to the number as was before replacement of the main PCB.
  • Page 165 Function Description Entering the service telephone No. [Description] Registers or deletes the service telephone No. shown when a service call code is triggered. [Purpose] To set the telephone number for a service call when installing the machine. [Method] Press the start key. If the telephone No. has already been registered, the current number is displayed.
  • Page 166 Function Description Displaying the engine ROM version [Description] Displays the ROM version of the engine PCB. [Purpose] Used to check the ROM version of the engine PCB. [Method] Press the start key. The ROM version is displayed. ENGINE ROM VERSION Ver 1.00 [Completion] Press the CA/reset key.
  • Page 167 Function Description Checking and clearing the printer count [Description] Checks, changes or clears the printer count if a printer board is attached. [Purpose] Used to check the status of the printer board or return the count to the number as was before replacement of the engine PCB. [Method] 1 Press the start key.
  • Page 168 Function Description Switching between double and single counts [Description] Switches the counting system for the total counter displayed in user mode and optional mechanical counter. [Purpose] To be set according to user (copy service provider) request. [Method] Press the start key. The current counting system is displayed. DOUBLE/SINGLE CNT:1 1:DOUBLE 2:SINGLE [Setting]...
  • Page 169 Function Description Setting auto clear time [Description] Sets the time to return to the initial setting after copying is completed. [Purpose] To be set to a comparatively long time for continuous copying at the same settings. [Method] Press the start key. The current setting is displayed. [Setting] 1 Change the settings using the numeric keys.
  • Page 170 Function Description Setting auto preheat time [Description] Sets the time to enter preheat/energy saver mode after copying is completed. [Purpose] When the copier is in frequent use, increase the value to enable copying promptly without the recovery time from preheating; when the copier is not in frequent use, decrease the value to save energy.
  • Page 171 2AB-1 Function Description Setting auto shutoff time [Description] Sets the time to enter shutoff (power is off: when the printer board is attached, only the fixing heater is off) mode after copying is completed. [Purpose] Used to save energy when the copier is not in frequent use, by decreasing the value.
  • Page 172 Function Description Setting operation under the toner empty condition [Description] Switches between single and continuous copies under the toner empty condition. [Method] Press the start key. The current setting is displayed. T.E ACTION:1 1:STOP 2:CONT [Setting] 1 Enter 1 or 2 using the numeric keys to switch between single and continuous copies.
  • Page 173 Function Description Setting the number of ejected sheets to be detected by the ejected paper overflow sensor [Description] Changes the number of sheets that can be stacked on the paper ejection area by setting the number to be detected by the eject overflow sensor (optional).
  • Page 174 Function Description Initializing memory 1 [Description] Copies the backup data, which was stored on both the main PCB and engine PCB, from the main PCB to the new engine PCB (refer to page 3-2- 93 for the backup data). [Purpose] Used to rewrite the backup data to the new engine PCB after replacing the engine PCB.
  • Page 175 Function Description Test copy mode [Description] Executes normal copying in maintenance mode. [Purpose] Used to make test copies during adjustment in maintenance mode. [Method] 1 Press the start key. Test copy mode is set. 2 Set an original on the contact glass and make test copies. The preset number of copies, original and paper sizes, and magnification ratio are displayed.
  • Page 176 Function Description DF simulation [Description] Performs scanning of an original from the SRDF (optional). [Purpose] To check the operation of scanning an original from the SRDF. [Method] 1 Press the start key. 2 Place an original on the DF. 3 Select single-side or duplex copying using the cursor down key. (No display): Scanning a single-side original DUPLEX: Scanning a double-sided original 4 Enter a magnification rate (50 –...
  • Page 177 Function Description DF simulation without paper feed [Description] Performs scanning of an original from the SRDF (optional) without paper feed. [Purpose] To check the operation of scanning an original from the SRDF. [Method] 1 Press the start key. 2 Select the paper size using the numeric keys. When 1 (minimum size) is selected, copying is performed in the same ×...
  • Page 178 Function Description Setting the copy density level [Description] Adjusts the copy density. [Purpose] Used when the entire image is too dark or too light. [Method] Press the start key. The current setting is displayed. [Setting] 1 Change the setting using the numeric keys. Description Setting range Initial value...
  • Page 179 Function Description Adjusting halftone density (400 dpi) [Description] Sets the halftone density when 400 dpi is selected for scanning resolution. There are 17 density levels represented by numbers ranging from 1 to 17: the larger the number is, the darker the image density becomes. Note that the scanning resolution is 400 dpi when "Half Tone"...
  • Page 180 Function Description Adjusting halftone density (600 dpi) [Description] Sets the halftone density when 600 dpi is selected for scanning resolution. There are 17 levels represented by numbers ranging from 1 to 17: the larger the number is , the darker the image density becomes. Note that the scanning resolution is 600 dpi when copying is performed under the conditions other than indicated below: •...
  • Page 181 Default: 000 If there is no destination code corresponding to the entered code, "NO SUCH CODE" is displayed 6 Enter the OEM code. Mita: 000 INI. ALL DATA OEM CODE:000 7 Press the start key.Initialization of the Main PCB starts. If there is no OEM data corresponding to the entered code, "NO SUCH CODE"...
  • Page 182 2AB-2 Function Description Destination code list Code Destination Germany Australia Peru The Philippines 3-2-82...
  • Page 183 Default: 000 If there is no destination data corresponding to the entered code,"No SUCH CODE" is displayed. 5 Enter the OEM Code. Mita: 000 INI. KEEP DATA OEM CODE:000 6 Press the start key. Initialization of the Main PCB starts. If there is no OEM Data corresponding to the entered code, "NO SUCH CODE"...
  • Page 184 Function Description Setting factory defaults [Description] Initializes the following data on the main PCB to the factory defaults (refer to page 3-2-93 for classification of the data on the main PCB). • Non-machine data in the flash ROM • Data in SRAM [Purpose] Used to initialize the above data to the factory defaults.
  • Page 185 SUCH DATA" is displayed. 5 Enter the OEM code. INI. MFP DATA Mita: 000 OEM CODE:000 6 Press the start key. Initialization of the Main PCB starts. If there is no OEM data corresponding to the entered code, "NO SUCH CODE" is displayed and initialization is not preformed.
  • Page 186 Function Description Selecting the language group [Description] Selects the language group to be used on the operation panel. [Purpose] Used when the operational ROM has been changed to one for a different destination. [Method] Press the start key. The current setting is displayed. [Setting] 1 Change the setting with the numeric keys.
  • Page 187 Function Description Outputting the setting list [Description] Outputs the list of software switches and ROM versions. [Purpose] Used when checking the above items to trace the cause. [Method] Press the start key. A sheet of the setting list as in the figure below is output and the current function is exited.
  • Page 188 Function Description Outputting the action list [Description] Outputs the list of service call code detection history, version and other information. [Purpose] Used when checking the above items to trace the cause. [Method] Press the start key. A sheet of the action list as in the figure below is output and the current function is exited.
  • Page 189 Function Description Outputting the monitor list [Description] Outputs the list of destination codes, OEM codes, counts and ROM versions. [Purpose] Used when checking the above items to trace the cause. [Method] Press the start key. A sheet of the monitor list as in the figure below is output and the current function is exited.
  • Page 190 Function Description Outputting the own-status report [Description] Outputs the list of settings in maintenance mode. [Purpose] Used before and after replacing the main PCB. [Method] Press the start key. A sheet of the own-status report as shown in function No. 000 is output and the current function is exited. 3-2-90...
  • Page 191 Function Description Performing memory tests [Description] Performs tests for SRAM and DRAM (image memory and bitmap memory). [Purpose] Used to check if reading and writing are performed correctly in respective installed memories. [Method] Press the start key. The test is performed and the result is displayed as follows.
  • Page 192 Function Description Performing optional memory tests [Description] Performs tests for optional memories (one image memory and one bitmap memory*). *Bitmap memory is installed before shipping. [Purpose] Used to check if reading and writing are performed correctly in respective optional memories installed. [Method] Press the start key.
  • Page 193 ( 4 ) Classification and storing of data set in maintenance mode Data set in each function in maintenance mode is classified and stored as shown below. The underlined function Nos. indicate that the data is stored as backup data on both the main PCB and engine PCB.

  • Page 194: Assembly And Disassembly

    2AB-1 3-3 Assembly and Disassembly 3-3-1 Precautions for assembly and disassembly ........3-3-1 ( 1 ) Precautions ................3-3-1 ( 2 ) Running a maintenance function ..........3-3-2 3-3-2 Paper feed section ................3-3-3 ( 1 ) Detaching and refitting paper feed pulley 1 ....... 3-3-3 ( 2 ) Detaching and refitting paper feed pulleys 2 ......
  • Page 195 2AB-1 ( 5 ) Detaching and refitting the heat roller separation claws and the heat and press rollers ..........3-3-46 3-3-7 Others ..................... 3-3-49 ( 1 ) Detaching and refitting the waste toner tank ......3-3-49...

  • Page 196: Precautions For Assembly And Disassembly

    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. • When handling PCBs, do not touch connectors with bare hands or damage the board. •...

  • Page 197: 2 ) Running A Maintenance Function

    ( 2 ) Running a maintenance function Start Enter 10871087 with the numeric keys....Maintenance mode is entered. "MAINTENANCE MODE 000" is shown on the display. Press the CA/reset key.

  • Page 198: Paper Feed Section

    3-3-2 Paper feed section ( 1 ) Detaching and refitting paper feed pulley 1 Clean or replace paper feed pulley 1 as follows. Procedure 1. Open the front cover and remove the imaging unit. Return the imaging unit release lever to the original position. 2.
  • Page 199 8. Turn the paper feed assembly over. 9. Remove the E ring and the bushing on the front of the paper feed shaft. 10. Remove the screw holding each paper feed pulley 1, and pull the pulley off the paper feed shaft. When refitting the pulley, take care to ensure correct orientation. 11.

  • Page 200: 2 ) Detaching And Refitting Paper Feed Pulleys 2

    ( 2 ) Detaching and refitting paper feed pulleys 2 Perform when cleaning or replacing paper feed pulleys 2. Procedure 1. Detach the cassette 2 paper feed unit from the machine. 2. Remove the two screws and the cover right retainer. 3.
  • Page 201 6. Detach paper feed pulleys 2 from the paper feed shaft by removing one screw each. 7. Clean or replace paper feed pulleys 2. 8. Refit the detached parts. Paper feed shaft Paper feed pulley 2 Paper feed shaft Paper feed pulley 2 Screw Metric specifications Inch specifications...

  • Page 202: 3 ) Detaching And Refitting The Bypass Paper Feed Pulley

    ( 3 ) Detaching and refitting the bypass paper feed pulley Clean or replace the bypass paper feed pulley as follows. Procedure 1. Open the front cover and remove the imaging unit. 2. Open the bypass table and remove the three screws holding the right side cover, and the cover.
  • Page 203 6. Slightly close the paper conveying assembly as shown in Figure 3-3-8 and detach the bypass table. Paper conveying assembly Bypass table Figure 3-3-8 7. Open the paper conveying assembly again and detach the front of the assembly from the copier. 8.
  • Page 204 9. Remove the two screws holding the bypass paper feed assembly. Slide the bypass paper feed assembly to the machine front and remove it from the copier. Bypass paper feed assembly Figure 3-3-10 10. Remove the screw holding each of the bypass lift cam and the bypass paper feed pulley.

  • Page 205: 4 ) Detaching And Refitting The Right Registration Roller

    ( 4 ) Detaching and refitting the right registration roller Clean or replace the right registration roller as follows. Procedure 1. Open the paper conveying assembly. 2. Remove the two screws holding the pre-registration guide, and the guide. 3. Remove the E ring and bushing at the front of the right registration roller. 4.

  • Page 206: 5 ) Detaching And Refitting The Registration Clutch And Left Registration Roller

    ( 5 ) Detaching and refitting the registration clutch and left registration roller Clean or replace the left registration roller, or replace the registration clutch as follows. Procedure 1. Open the front cover and remove the imaging unit. Return the imaging unit release lever to the original position.
  • Page 207 8. Remove the registration clutch 2-pin connector and cut the two bands. 9. Remove the E ring and then the registration clutch from the left registration roller. 10. Remove the bushing and registration gear 15 at the rear of the left registration roller, and then the roller from the copier.

  • Page 208: 6 ) Adjusting The Centerline Of Printing

    ( 6 ) Adjusting the centerline of printing Perform the following adjustment if there is a regular error between the centers of the original and the copy image on paper from a specific paper source. No. 120 No. 122 No. 124 No.

  • Page 209: 7 ) Adjusting The Start Position Of Image Printing

    ( 7 ) Adjusting the start position of image printing Perform the following adjustment when the image printing start position is not correct. No. 110 No. 106 No. 111 (p. 3-3-33) (p. 3-3-31) Caution: When performing this adjustment, all the above maintenance items must be executed in the order indicated.

  • Page 210: 8 ) Adjusting The End Position Of Image Printing

    ( 8 ) Adjusting the end position of image printing Perform the following adjustment if the image printing end position is not correct. No. 110 No. 115 No. 106 No. 111 No. 116 (p. 3-3-14) (p. 3-3-33) (p. 3-3-31) (p. 3-3-32) Caution: When performing this adjustment, all the above maintenance items must be executed in the order indicated.

  • Page 211: 9 ) Adjusting The Amount Of Slack In The Paper Fed From Cassette 2

    ( 9 ) Adjusting the amount of slack in the paper fed from cassette 2 Perform the following adjustment if the leading edge of the copy image is missing or varies sporadically, or if the paper is Z-folded when paper is fed from cassette 2. Procedure Start Enter maintenance mode.

  • Page 212: Replacing The Left Registration Felt And Lower Left Registration Felt

    2AB-1 (10) Replacing the left registration felt and lower left registration felt Take the following steps when replacing the left and lower left registration felts. Procedure 1. Remove the paper feed assembly from the copier (see page 3-3-3). 2. Remove the three screws and detach the registration felt mount from the paper feed assembly.

  • Page 213: Replacing The Right Registration Felt And Paper Powder Cleaning Seals A And B

    2AB-1 (11) Replacing the right registration felt and paper powder cleaning seals A and B Take the following steps when replacing the right registration felt and paper powder cleaning seals A and B. Procedure 1. Remove the pre-registration guide and right registration roller from the copier (see page 3-3-10).

  • Page 214: Optical Section

    3-3-3 Optical section ( 1 ) Detaching and refitting the exposure lamp Clean or replace the exposure lamp as follows. Procedure 1. Detach the contact glass. 2. Move the scanner to the machine center. 3. Remove the 2-pin connector of the exposure lamp from the inverter PCB. 4.

  • Page 215: 2 ) Detaching And Refitting The Scanner Wires

    ( 2 ) Detaching and refitting the scanner wires Take the following steps when the scanner wires are broken or to be replaced. After replacing the scanner wires, proceed to (4) Adjusting lateral image squareness (adjusting the installation of the ISU). (2-1) Detaching the scanner wires Procedure 1.

  • Page 216: Refitting The Scanner Wires

    Wire retainer Scanner wire Round terminal Scanner wire spring Round terminal Screws ISU wire Scanner Mirror frame Figure 3-3-21 Detaching the scanner wire (2-2) Refitting the scanner wires Refitting requires the following tool: Scanner wire drum clip (part No.: 35968110) Procedure At the machine rear: 1.
  • Page 217 2. Remove the five screws holding the scanner front and rear rails, and the rails. 3. Remove the E rings and the bearings holding the scanner drive shaft at the front and rear. 4. Remove the two screws holding the scanner wire drum and pull the scanner drive shaft off the scanner wire drum.
  • Page 218 9. Refit the scanner wire drum and the scanner drive shaft to the machine and secure them with the E rings. 10. Refit the scanner front and rear rails. 11. Place the mirror frame on the scanner rails. 12. Loop the inner scanner wire around the scanner wire pulley on the right of the machine from the bottom to top.
  • Page 219 20. Set the scanner in the middle of the machine. 21. Hold the scanner wires with the wire retainers and tighten the screws. Do not tighten completely. 22. Insert two positioning screws M3 × 16 (part No. B1303160) in the positioning holes in the center of each of the scanner front and rear rails (Figure 3-3-26).
  • Page 220 23. Move the mirror frame until it touches the inner positioning screws (Figure 3-3-26 24. Adjust the wire tension plates so that the scanner wires on the front and rear of the machine are tensioned equally. Machine rear Machine front Wire tension plates Scanner wire Scanner wire...

  • Page 221: 3 ) Detaching And Refitting The Laser Scanner Unit

    ( 3 ) Detaching and refitting the laser scanner unit Take the following steps when the laser scanner unit is to be checked or replaced. Caution: After replacing the laser scanner unit, proceed to (4) Adjusting lateral image squareness. Procedure 1.

  • Page 222: ( 4 ) Adjusting Lateral Image Squareness (Reference)

    ( 4 ) Adjusting lateral image squareness (reference) Make the following adjustment if the copy image is skewed laterally (lateral squareness is not obtained). Caution: To adjust lateral image squareness, adjust the position of the laser scanner unit and check for squareness of the image on the output example. If squareness is not obtained on the copy image while it is obtained on the output example, adjust the installation of the ISU.

  • Page 223: Adjusting The Instrallation Of The Isu

    (4-2) Adjusting the installation of the ISU Be sure to perform this adjustment after replacing the ISU or mirror frame (including mirror 3). • Using the optical axis adjustment tool Procedure Optical axis adjustment tool (P/N 2AB68070) Scanner Figure 3-3-31 Start Mirror 2 Turn the main switch on.
  • Page 224 1. Remove the four screws from the ISU. 2. Insert a shim under each of the two screws holding the ISU (Figure 3-3-33). – • If F>R: insert (F R)/2 mm thick shims under A and C. Is the – •...
  • Page 225 • Without using the optical axis adjustment tool (reference) Note it is much preferred and strongly recommended to adjust using the optical axis adjustment tool. Procedure Start Make a test copy using a white Turn the adjusting screw using sheet of original at exp. 3 in half a hex wrench to adjust the angle tone mode.
  • Page 226 Original Copy Copy example 1 example 2 Figure 3-3-35 Make a test copy. 1. Remove the four screws from the ISU. 2. Insert a shim under each of the two screws holding the ISU (Figure 3-3-36). Is the image correct? If the image is skewed by L mm over 200 mm, insert L/2 mm thick shims.

  • Page 227: 5 ) Adjusting The Scanning Centerline Of The Original On The Contact Glass

    ( 5 ) Adjusting the scanning centerline of the original on the contact glass Make the following adjustment when there is a regular error between the centerlines of the copy image and original. No. 120 No. 122 No. 124 No. 126 No.

  • Page 228: 6 ) Adjusting The Scanning Start Position Of The Original On The Contact Glass

    ( 6 ) Adjusting the scanning start position of the original on the contact glass Perform the following adjustment when there is a regular error between the leading edges of the copy image and original. No. 110 No. 115 No. 106 No.

  • Page 229: 7 ) Adjusting The Scanning End Position Of The Original On The Contact Glass

    ( 7 ) Adjusting the scanning end position of the original on the contact glass Perform the following adjustment when there is a regular error between the trailing edge of the copy image and original. No. 110 No. 115 No. 106 No.

  • Page 230: 8 ) Adjusting The Magnification

    ( 8 ) Adjusting the magnification Perform the following adjustment if the magnification in the main or auxiliary scanning direction is not correct. No. 110 No. 115 No. 106 No. 111 No. 116 (p. 3-3-14) (p. 3-3-15) No. 104 (p. 3-3-31) (p.

  • Page 231: 9 ) Adjusting The Right And Left Margins

    ( 9 ) Adjusting the right and left margins Adjust the printing start or end position in the main scanning direction when the right or left margin is not correct. Precaution: Adjust and make a test copy for each size of paper. Procedure Left margin Right margin...

  • Page 232: Imaging Unit Section

    3-3-4 Imaging unit section ( 1 ) Detaching and refitting the drum and the cleaning blade (reference) Perform the following steps when cleaning or replacing the drum and replacing the cleaning blade. Precautions • Avoid direct sunlight and strong lighting when detaching and refitting the drum. •...
  • Page 233 Removing the drum 5. Remove the two rear screws holding the drum shaft, and the shaft. Remove the drum from the IU housing. 6. Replace or clean the drum. Orient the drum correctly during reassembly. IU housing Drum shaft Rear Drum Front Figure 3-3-43 Detaching the drum...
  • Page 234 9. Remove the three screws holding the cleaning blade and detach the blade from the IU housing. 10. Replace the cleaning blade. Caution: During replacement, apply powder to the new cleaning blade. Replace the cleaning unit front, rear and lower seals at the same time. 11.

  • Page 235: 2 ) Cleaning The Drum

    ( 2 ) Cleaning the drum Clean the drum as follows when an image problem occurs or if the drum is dirty. Precautions • Avoid direct sunlight and strong light when cleaning the drum. • Dust in the air and from the cleaning pad may damage the drum during operation. Avoid working in dusty places.

  • Page 236: Transfer Section

    3-3-5 Transfer section ( 1 ) Detaching and refitting the transfer roller Take the following steps when the transfer roller is to be cleaned or replaced. Caution: Do not touch the transfer roller surface with bare hands or clean with a wet cloth.

  • Page 237: Fixing And Eject Section

    3-3-6 Fixing and eject section ( 1 ) Detaching the fixing unit Take the following steps when cleaning, inspecting or replacing parts in the fixing unit. Procedure 1. Detach the right, left, front and tray covers. • When detaching the right cover with the optional duplex unit installed, disengage the mounting arm of the duplex unit from the reversing joint and then the joint from the right cover.
  • Page 238 4. Remove the 4-pin connector of safety switches 3 and 4, the 2-pin connector of the fixing unit thermistor, the two 1-pin connectors of the fixing heater and the 3-pin connector of the switchback solenoid. 5. Remove the fixing unit from the copier. •...

  • Page 239: 2 ) Replacing The Fixing Heater

    ( 2 ) Replacing the fixing heater Take the following steps when replacing the fixing heater. Procedure 1. Remove the screw holding the safety switch cover and the cover from the rear of the fixing unit. 2. Remove the two screws and the safety switch 4 assembly. Safety switch cover Safety switch 4 assembly Figure 3-3-51...
  • Page 240 3. Remove the fixing unit felt. 4. Remove the two screws holding the fixing unit cover, and then the cover. 5. Remove the 1-pin connector of the fixing heater from fixing unit thermostat 1. 6. Remove the screws holding the fixing heater front and rear retainers respectively, and then the retainers.

  • Page 241: 3 ) Replacing The Fixing Unit Thermistor

    ( 3 ) Replacing the fixing unit thermistor Take the following steps when replacing the fixing unit thermistor. Procedure 1. Remove the two screws holding the fixing unit cover, and then the cover. 2. Remove the screw holding the fixing unit thermistor, and then the thermistor. 3.
  • Page 242 ( 4 ) Replacing fixing unit thermostats 1 and 2 Take the following steps when replacing fixing unit thermostats 1 and 2. Caution: Use the specified thermostat for replacement. Do not substitute a simple wire or similar; otherwise, the machine will be seriously damaged. Procedure 1.
  • Page 243 ( 5 ) Detaching and refitting the heat roller separation claws and the heat and press rollers Take the following steps when cleaning or replacing the heat roller separation claws and the heat and press rollers. Procedure Detaching the heat roller separation claws 1.
  • Page 244 Heat roller bushing Stop ring Switchback solenoid Heat roller gear Heat roller Stop ring Fixing unit Heat roller bushing upper housing Figure 3-3-56 Detaching the heat roller Detaching the press roller 9. Remove the front and rear bearings and the press roller. •...
  • Page 245 • Caution for switchback solenoid installation When installing the switchback solenoid, with the solenoid turned off, check that feedshift gear 44 and feedshift gear 21 are engaged so that the projection on feedshift gear 21 is positioned between the two projections on feedshift gear 44. Feedshift gear 21 Feedshift gear 44 Switchback solenoid...

  • Page 246: Others

    3-3-7 Others ( 1 ) Detaching and refitting the waste toner tank Replace the waste toner tank when the message display shows “Replace Waste Toner Tank”. Procedure 1. Turn the main switch off. 2. Remove the memory board and then the rear cover (two screws). •...
  • Page 247 3-4 PCB Initial Setting 3-4-1 Main PCB ..................3-4-1 ( 1 ) Replacing the main PCB ............3-4-1 ( 2 ) Updating the firmware ............... 3-4-4 3-4-2 Replacing the engine PCB ..............3-4-6 3-4-3 Adjustment-free variable resisters (VR) ..........3-4-7 3-4-4 Printer board (option) ................

  • Page 248: Main Pcb

    3-4-1 Main PCB (1) Replacing the main PCB Before and after replacing the main PCB, perform the steps below. Main PCB replacement requires the following tools: Flash tool assembly (P/N 35968010) Main ROM IC2 (P/N 2AB68020) Procedure • Before removing the old main PCB: 1.
  • Page 249 7. Remove the blanking cover on the rear of the copier and insert the flash tool assembly into the top slot. Flash tool assembly Blanking cover Figure 3-4-2 8. Insert the power plug and turn the main switch on. FLASH PUSH START 9.
  • Page 250 11. Turn the main switch off. 12. Remove the flash tool assembly and refit the blanking cover. 13. Turn the main switch on. 14. Enter the maintenance mode. 15. Execute maintenance item 604. 16. Execute the maintenance items in the data recorded on the own-status report output in step 2 to reenter or check the data.
  • Page 251 (2) Updating the firmware Perform the following procedure to update the main PCB firmware. Firmware updating requires the following tools: Flash tool assembly (P/N 35968010) Main ROM IC2 Procedure 1. Turn the main switch on and enter maintenance mode. 2. Execute maintenance item 000 to output the own-status report. 3.
  • Page 252 6. Turn the main switch on. FLASH PUSH START 7. Press the start key. FLASH : WRITING ∗ ∗ >> Several tens of seconds later ∗ ∗∗ FLASH : Ver. PUSH START 8. Press the start key. FLASH power off 9.

  • Page 253: Replacing The Engine Pcb

    3-4-2 Replacing the engine PCB Perform the following procedure when replacing the engine PCB. Caution: Before replacing the engine PCB, be sure that toner empty has not been detected or the toner sensor output voltage has not reached the no-copying level. Reset, if necessary.

  • Page 254: Adjustment-Free Variable Resisters (Vr)

    3-4-3 Adjustment-free variable resisters (VR) The variable resistors listed below are set at the factory prior to shipping and cannot be adjusted in the field. • High-voltage transformer PCB: VR101, VR201, VR301, VR 401 • Power source PCB: VR1 3-4-7...

  • Page 255: Printer Board (Option)

    3-4-4 Printer board (option) Perform the following procedure to update the firmware on the printer board. Firmware updating requires the following tools: PC (DOS) Parallel cable File to be downloaded Firmware Procedure Note: Copy the file to be downloaded and firmware to the PC hard disk beforehand. 1.
  • Page 256 Printer board Figure 3-4-7 8. Turn the PC power on and start up in the DOS mode. (In Windows DOS window, it may not operate correctly.) Enter "copy dnload/b lpt1:" using the keyboard. 9. Press the return key on the PC keyboard. 10.
  • Page 257 3-5 Self-diagnostics 3-5-1 Self-diagnosis ................... 3-5-1 ( 1 ) Self-diagnostic function ............. 3-5-1...
  • Page 258 3-5-1 Self-diagnosis (1) Self-diagnostic function This unit is equipped with a self-diagnostic function. When it detects a problem with itself, it disables copying and displays the problem as a code consisting of “C” followed by a two- digit number, indicating the nature of the problem. A message, “Call for service,” is also displayed.
  • Page 259 Self diagnostic codes Remarks Code Contents Check procedures/ Causes corrective measures Bitmap memory board The bitmap Install the bitmap memory not installed memory board. The power is turned on board is not without installing the installed. bitmap memory board. Operation unit PCB com- The connec- Check the connection of con- munication problem...
  • Page 260 Remarks Code Contents Check procedures/ Causes corrective measures Checksum problem in Defective Replace the engine PCB and the SRAM software area engine PCB. check for correct operation. There is a difference be- tween the checksum in the SRAM software area stored when the power is turned off and the value checked when the power...
  • Page 261 Remarks Code Contents Check procedures/ Causes corrective measures Main charger output Main charger Check the charger housing problem output leaking. visually and clean it if it is dirty. The MC ALM signal is out- Broken Check the charger wire visually put from the high-voltage charger wire.
  • Page 262 Remarks Code Contents Check procedures/ Causes corrective measures Transfer problems Poor contact Check the connection of the The external humidity in the humidity sensor PCB sensor output A/D data is humidity connectors. 242 or larger (4.75 V or sensor PCB higher, 99% RH or higher).
  • Page 263 Remarks Code Contents Check procedures/ Causes corrective measures Belt motor problem The belt mo- Check the connection of the (when the finisher is in- tor connector belt motor connector. stalled) makes poor The tractor does not leave contact. the home position within The belt mo- Replace the belt motor and 0.3 s of the start of tractor...
  • Page 264 Remarks Code Contents Check procedures/ Causes corrective measures Tray elevation motor The tray el- Check the connection of the problem evation motor tray elevation motor connec- (when the finisher is in- connector tor. stalled) makes poor The vertical movement of contact.
  • Page 265 3-6 Troubleshooting 3-6-1 Image formation problems ..............3-6-1 ( 1 ) No image appears (entirely white)..........3-6-3 ( 2 ) No image appears (entirely black)..........3-6-4 ( 3 ) Image is too light............... 3-6-5 ( 4 ) Background is visible..............3-6-6 ( 5 ) A white line appears longitudinally.
  • Page 266 ( 3 )The cassette drive motor does not rotate......... 3-6-38 ( 4 ) The eject motor does not rotate..........3-6-38 ( 5 ) The scanner motor does not rotate......... 3-6-39 ( 6 ) The toner feed motor does not rotate........3-6-39 ( 7 ) Cooling fan motor 1 does not rotate.
  • Page 267 2AB-1 3-6-6 Optional printer unit problems ............3-6-49 ( 1 ) If a shared printer is connected to the parallel port....3-6-49 ( 2 ) If a shared printer is on a LAN..........3-6-51...

  • Page 268: Image Formation Problems

    3-6-1 Image formation problems (1) No image appears (2) No image appears (3) Image is too light. (entirely white). (entirely black). See page 3-6-3. See page 3-6-4. See page 3-6-5. (4) Background is visible. (5) A white line appears (6) A black line appears longitudinally.

  • Page 269: Paper Creases

    (13) Paper creases. (14) Offset occurs. (15) Image is partly missing. See page 3-6-10. See page 3-6-11. See page 3-6-11. (16) Fixing is poor. (17) Image is out of focus. (18) Image center does not align with the original center. See page 3-6-12.
  • Page 270 (1) No image appears Causes (entirely white). 1. The connector terminals of the engine PCB make poor contact. 2. Defective engine PCB. Causes Check procedures/corrective measures 1. The connector terminals of the Check for continuity across the terminals. If engine PCB make poor contact. none, replace the terminals.
  • Page 271 (2) No image appears Causes (entirely black). 1. Exposure lamp fails to light. 2. No main charging. Causes Check procedures/corrective measures 1. Exposure lamp fails to light. A. The connector terminals of the Check for continuity across the terminals. If exposure lamp make poor none, replace the terminals.
  • Page 272 (3) Image is too light. Causes 1. No transfer charging. 2. No developing bias voltage is output. 3. Misadjusted exposure level. 4. Insufficient toner. 5. Deteriorated developer. 6. Dirty or deteriorated drum. Causes Check procedures/corrective measures 1. No transfer charging. A.
  • Page 273 (4) Background is visible. Causes 1. Deteriorated developer. Causes Check procedures/corrective measures 1. Deteriorated developer. If the display shows the message requesting replacement of the IU, replace the imaging unit. (5) A white line appears Causes longitudinally. 1. Dirty or flawed charger wire. 2.
  • Page 274 (6) A black line appears Causes longitudinally. 1. Dirty contact glass. 2. Dirty or flawed drum. 3. Deformed or worn cleaning blade. 4. Dirty scanner mirror. Causes Check procedures/corrective measures 1. Dirty contact glass. Clean the contact glass. 2. Dirty or flawed drum. Clean the drum or, if it is flawed, replace it (see page 3-3-35).
  • Page 275 (8) One side of the copy Causes image is darker than 1. Dirty charger wire. the other. 2. Defective exposure lamp. Causes Check procedures/corrective measures 1. Dirty charger wire. Clean the wire or, if it is extremely dirty, replace it. 2.
  • Page 276 (10) Image is blurred. Causes 1. Scanner moves erratically. 2. Deformed press roller. 3. Paper conveying section drive problem. Causes Check procedures/corrective measures 1. Scanner moves erratically. Check if there is any foreign matter on the front and rear scanner rails. If any, remove it. 2.
  • Page 277 (12) The leading edge of the Causes image is sporadically 1. Registration clutch, bypass paper feed clutch, cassette misaligned with the 1 paper feed clutch or cassette 2 paper feed clutch original. installed or operating incorrectly. Causes Check procedures/corrective measures 1.
  • Page 278 (14) Offset occurs. Causes 1. Defective cleaning blade. Causes Check procedures/corrective measures 1. Defective cleaning blade. Replace the cleaning blade (see page 3-3-35). (15) Image is partly missing. Causes 1. Paper damp. 2. Paper creased. 3. Drum condensation. 4. Flawed drum. Causes Check procedures/corrective measures 1.
  • Page 279 (16) Fixing is poor. Causes 1. Wrong paper. 2. Flawed press roller. Causes Check procedures/corrective measures 1. Wrong paper. Check if the paper meets specifications. 2. Flawed press roller. Replace the press roller (see page 3-3-46). (17) Image is out of focus. Causes 1.
  • Page 280 (18) Image center does not Causes align with the original 1. Misadjusted image center line. center. 2. Original placed incorrectly. Causes Check procedures/corrective measures 1. Misadjusted image center line. Readjust the image center line (see page 3-3-13). 2. Original placed incorrectly. Place the original correctly.
  • Page 281 3-6-2 Paper misfeeds Problem Causes/check procedures Corrective measures A piece of paper torn from copy Check visually and remove it, if A paper jam paper is caught around the reg- any. in the paper istration switch. feed or con- Defective registration switch. Run maintenance mode veying section function No.
  • Page 282 Problem Causes/check procedures Corrective measures Defective registration switch. Run maintenance mode A paper jam function No. 011 and check if in the paper the switch status display feed or remains "OFF" when the conveying registration switch is turned on. section of If it does, replace the cassette 1 is registration switch.
  • Page 283 Problem Causes/check procedures Corrective measures Electrical problem with the by- See page 3-6-40. A paper jam pass paper feed clutch. in the bypass is indicated during copying. Check if the right and left regis- Check and repair if necessary. A paper jam tration rollers contact each in the eject other.
  • Page 284 3-6-3 PCB terminal voltages Precautions • When handling the circuit boards, do not touch the components with bare hands. • ICs can be damaged by static discharges. If a PCB contains ICs, do not touch the ICs, cable connectors or edge connectors. •...
  • Page 285 Terminals (CN) Voltage Remarks 5 V DC 5 V DC supply for MPCB, output 24 V DC 24 V DC supply for MPCB, output +12 V DC +12 V DC supply for MPCB, output –12 V DC –12 V DC supply for MPCB, output 24 V DC 24 V DC supply for EPCB, output 4-2, -3...

  • Page 286: Main Pcb

    (2) Main PCB L1007 C1514 C1510 C1301 R1501 R1502 R1025 R1026 C1108 R1337 R1301 R1033 R1336 R1302 R1027 C1033 R1031 R1303 R1028 R1304 R1305 R1034 R1306 R1001 R1030 R1029 C1105 C1031 R1319 L901 C909 R904 C1107 R903 R902 L907 C1006 C1007 C1024 C904 C905 C906...
  • Page 287 Terminals (CN) Voltage Remarks 5/0 V DC (pulse) EPCB control signal, input (SVCLK) 5/0 V DC (pulse) EPCB scan data signal, input (SVD0) 5/0 V DC (pulse) EPCB scan data signal, input (SVD1) 5/0 V DC (pulse) EPCB scan data signal, input (SVD2) 5/0 V DC (pulse) EPCB scan data signal, input (SVD3) 5/0 V DC (pulse)
  • Page 288 Terminals (CN) Voltage Remarks 5 V DC 5 V DC supply for OPCB, output 5/0 V DC (pulse) OPCB control signal, output (COM) 5/0 V DC (pulse) OPCB control signal, input (STATUS) 5/0 V DC (pulse) OPCB control signal, output (SCLK) 5/0 V DC (pulse) OPCB control signal, input (SIG1) 5/0 V DC (pulse)
  • Page 289 Terminals (CN) Voltage Remarks 6-45 6-1, -2, -3 5/0 V DC (pulse) Printer board* control signal, output 6-47 6-1, -2, -3 5/0 V DC (pulse) Printer board* control signal, output 6-48 6-1, -2, -3 5/0 V DC (pulse) Printer board* control signal, output 6-49 6-1, -2, -3 5/0 V DC (pulse)
  • Page 290 (3) Engine PCB CN16 CN15 CN14 IC35 CN19 FET2 FET3 FET4 C10 + CN21 CN11 3-6-23...
  • Page 291 Terminals (CN) Voltage Remarks 24 V DC 24 V DC supply, input 24 V DC 24 V DC supply for PRY, output 24 V DC 24 V DC supply, input (24 V DC supply via PRY) 24 V DC 24 V DC supply, input (24 V DC supply via PRY) 21-1, -2 5 V DC...
  • Page 292 Terminals (CN) Voltage Remarks 5-21 5-23 5 V DC 5 V DC supply for RSW, output 5-22 5-23 0/5 V DC RSW on/off, input 5-24 5-26 5 V DC 5 V DC supply for BYPPSW, output 5-25 5-26 0/5 V DC BYPPSW on/off, input 21-1, -2 5/0 V DC (pulse)
  • Page 293 Terminals (CN) Voltage Remarks 21-1, -2 5/0 V DC (pulse) Imaging unit differentiation signal, input (DEV A) 21-1, -2 5/0 V DC (pulse) Imaging unit differentiation signal, input (DEV B) 21-1, -2 5/0 V DC (pulse) Imaging unit differentiation signal, input (DEV C) TNS detection voltage, input 24 V DC...
  • Page 294 Terminals (CN) Voltage Remarks 12-14 12-4 5/0 V DC DUPDM* rotation direction switching signal, output 12-15 12-4 5/0 V DC (pulse) DUPDM* drive clock pulse signal, output 12-16 12-4 5/0 V DC EM operation/hold control signal, output 12-17 12-4 0/24 V DC DUPDM* drive power on/off, output 12-19 12-4...
  • Page 295 Terminals (CN) Voltage Remarks 16-3 16-4 5/0 V DC (pulse) CCDPCB control signal, output (RS1) 16-5 16-6 5/0 V DC (pulse) CCDPCB control signal, output (CCDCLK1) 16-7 16-8 5/0 V DC (pulse) CCDPCB control signal, output (CCDCLK2) 16-9 16-10 5/0 V DC (pulse) CCDPCB control signal, output [ROG (SH)] 16-11...
  • Page 296 Terminals (CN) Voltage Remarks 18-17 18-22 5/0 V DC (pulse) SSW5 return signal, input (SENS5) 18-18 18-22 0/5 V DC CSMOTPCB (CSDM) on/off, output 18-19 18-22 0/5 V DC STMOTPCB* (STDM1*) on/off, output 18-20 18-22 0/5 V DC STMOTPCB* (STDM2*) on/off, output 18-21 18-22 5 V DC...
  • Page 297 Terminals (CN) Voltage Remarks 19-34 21-1, -2 5/0 V DC (pulse) MPCB control signal, input (CCLK) 19-36 21-1, -2 5/0 V DC (pulse) MPCB control signal, output (_SBSY) 19-37 21-1, -2 5/0 V DC (pulse) MPCB control signal, output (_PRDY) 19-39 21-1, -2 5/0 V DC (pulse)
  • Page 298 (4) Motor PCB JP14 JP15 JP16 JP10 HC14 CN12 JP12 JP19 STK672-110 3-6-31...
  • Page 299 Terminals (CN) Voltage Remarks 5/0 V DC (pulse) EM phase switching clock signal, input 5/0 V DC EM rotation direction switching signal, output 5 V DC 5 V DC supply, input 1-7, -8 1-5, -6 24 V DC 24 V DC supply, input SM current control voltage, input 1-10 5/0 V DC (pulse)
  • Page 300 Terminals (CN) Voltage Remarks 5/0 V DC (pulse) BYPOSSW* scan signal, output (SCAN0) 5/0 V DC (pulse) Duplex unit* installed return signal, input (SENS4) 5/0 V DC (pulse) BYPOSSW* return signal, input (SENS5) 0/5 V DC EOFS* on/off, input 5 V DC 5 V DC supply for EOFS*, output 4-3, -4 24 V DC...
  • Page 301 (5) Operation unit PCB Terminals (CN) Voltage Remarks 24 V DC 24 V DC supply from MPCB, input 5 V DC 5 V DC supply from MPCB, input 5/0 V DC (pulse) MPCB control signal, input (SCLK) 5/0 V DC (pulse) MPCB control signal, input (COM) 5/0 V DC (pulse) MPCB control signal, output (STATUS)
  • Page 302 (6) Cassette motor PCB E C B C6 C5 Terminals (CN) Voltage Remarks 1-12 24 V DC 24 V DC supply, input 1-12 24 V DC 24 V DC supply, input 1-12 24 V DC 24 V DC supply for CS2PFCL, output 1-12 24 V DC 24 V DC supply for CSFCL, output...
  • Page 303 Terminals (CN) Voltage Remarks 1-12 5/0 V DC (pulse) CS2PSSW3 scan signal, output 1-12 5/0 V DC (pulse) CS2PSSW4 scan signal, output 1-12 5/0 V DC (pulse) SSW5 scan signal, output 1-12 5/0 V DC (pulse) CS2SSW1 return signal, output 1-12 5/0 V DC (pulse) CS2SSW1 return signal, input...
  • Page 304 3-6-4 Electrical problems Problem Causes Check procedures/corrective measures No electricity at the Measure the input voltage. The machine power outlet. does not op- The power cord is Check the contact between the power plug erate when not plugged in and the outlet. the main properly.
  • Page 305 Problem Causes Check procedures/corrective measures Broken cassette Check for continuity across the coil. If none, The cassette drive motor coil. replace the cassette drive motor. drive motor Poor contact in the Check for continuity across the connector does not cassette drive terminals.
  • Page 306 Problem Causes Check procedures/corrective measures Broken scanner Check for continuity across the coil. If none, The scanner motor coil. replace the scanner motor. motor does Poor contact in the Check for continuity across the connector not rotate. scanner motor terminals. If none, replace them. connector termi- nals.
  • Page 307 Problem Causes Check procedures/corrective measures Broken cooling fan Check for continuity across the coil. If none, Cooling fan motor 2 coil. replace cooling fan motor 2. motor 2 does Poor contact in the Check for continuity across the connector not rotate. cooling fan motor 2 terminals.
  • Page 308 Problem Causes Check procedures/corrective measures (11) Broken registration Check for continuity across the coil. If none, The registra- clutch coil. replace the registration clutch. tion clutch Poor contact in the Check for continuity across the connector does not op- registration clutch terminals.
  • Page 309 Problem Causes Check procedures/corrective measures (15) Poor contact in the Check for continuity across the connector The cleaning cleaning lamp con- terminals. If none, replace them. lamp does not nector terminals. turn on. Defective cleaning Check for one-way continuity across each lamp.
  • Page 310 Problem Causes Check procedures/corrective measures (20) Broken main See page 3-6-4. Main charging charger wire. is not per- Leaking charger formed (C51). housing. Poor contact in the high-voltage trans- former PCB con- nector terminals. Defective engine PCB. Defective high- voltage trans- former PCB.
  • Page 311 Problem Causes Check procedures/corrective measures (23) Defective original If the level of CN24-2 on the engine PCB The original detection switch. does not change when the original detection size is not switch is turned on and off, replace the origi- detected.
  • Page 312 Problem Causes Check procedures/corrective measures (28) Poor contact in the Check for continuity across the connector The size of connector termi- terminals. If none, replace them. paper in nals of cassette 1 cassette 1 is paper size switch not displayed 1, 2, 3 or 4.
  • Page 313 Problem Causes Check procedures/corrective measures (31) Poor contact in the Check for continuity across the connector The message connector termi- terminals. If none, replace them. requesting the nals of safety front cover to switch 1. be closed is Defective safety Check if the switch status display remains displayed switch 1.
  • Page 314 3-6-5 Mechanical problems Problem Causes/check procedures Corrective measures Check if paper feed pulleys 1 If dirty, clean with isopropyl No primary and 2 or the bypass paper feed alcohol. paper feed. pulley is dirty with paper pow- der. Check if paper feed pulleys 1 Replace any deformed or worn and 2 or the bypass paper feed pulley (see page 3-3-3, 4).
  • Page 315 Problem Causes/check procedures Corrective measures Check if the contact between If there is a problem, repair. Paper jams. the right and left registration rollers is correct. Check if the fixing unit front Repair or replace. guide is deformed. Check if the fixing unit upper Repair or replace.
  • Page 316 2AB-1 3-6-6 Optional printer unit problems ( 1 ) If a shared printer is connected to the parallel port Trouble shooting flowchart Start Example of basic connection (indicated in solid lines) Check if the on-line indicator on the operation panel of the printer is on.
  • Page 317 2AB-1 Corrective measure Problem Hardware problem with the printer Replace the printer board and check unit (printer board). again. Driver installation error. Delete the driver and reinstall it. Then, check again. Server failure. Contact the network administrator and solve the problem. User network environment problem.
  • Page 318 2AB-1 ( 2 ) If a shared printer is on a LAN Trouble shooting flowchart Start Example of basic connection (indicated in solid lines) Check if the on-line indicator on the Printer unit operation panel of the printer is on. If not, Network board press the on-line key Printer board...
  • Page 319 2AB-1 Problem Corrective measure Hardware problem with the printer Replace the printer board or network unit (between the printer board and board and check again. network board). Hardware problem with the printer Replace the printer board and check unit (printer board). again.
  • Page 320 2AB-1 3-7 Appendixes Timing chart No. 1 ..................3-7-1 Timing chart No. 2 ..................3-7-2 Timing chart No. 3 ..................3-7-3 Timing chart No. 4 ..................3-7-4 Timing chart No. 5 ..................3-7-5 Timing chart No. 6 ..................3-7-5-1 Timing chart No. 7 ..................3-7-5-2 Power source PCB (120 V area) ..............
  • Page 321 2AB-1 Engine PCB ..................3-7-46 Engine PCB ..................3-7-47 Motor PCB ....................3-7-48 Cassette motor PCB ................... 3-7-49 Operation unit PCB ..................3-7-50 Connection diagram ................3-7-51 Connection diagram ................3-7-52...

  • Page 322: Timing Chart No. 1

    Timing chart No. 1 From main switch on to stabilization MSW: On Preheat mode Secondary stabilization 165°C/329°F fixing temperature Preheat temperature 150°C/302°F Primary stabilization 130°C/266°F fixing temperature 1.5 s CN21-5 DB REM CN8-13 100 ms 100 ms CN2-1 5 – 15 s Full speed Half...

  • Page 323: Timing Chart No. 2

    2AB-1 Timing chart No. 2 Printing the image onto a sheet of paper fed from cassette 1 or the bypass table START KEY 7031 ms (during transfer roller cleaning) 1260 ms (under normal operation) 750 ms CN17-3 500 ms 80 ms MSYNC CN17-1 50 ms...

  • Page 324: Timing Chart No. 3

    2AB-1 Timing chart No. 3 Paper feed from cassette 2 Pre-feed command 600 ms CSDM CN18-18 CS2PFCL CN18-3 150 ms CSFCL CN18-6 170 ms 255 ms CSFSW CN18-26 CN5-22 CN5-4 85 ms 5 – 295 ms CN2-1 100 ms 3-7-3 2AB (MCE)

  • Page 325: Timing Chart No. 4

    Timing chart No. 4 Scanner initialization MSW: ON Fwd. rotation CN12-7– CN12-10 992 P Rev. rotation 40 ms CN14-1– CN14-2 1000 ms CN24-5 SHPSW 3-7-4 2AB (MCE)

  • Page 326: Timing Chart No. 5

    Timing chart No. 5 Scanning the image of an original placed on the contact glass SCAN signal 560 – Fwd. SM CN12-7 – 800 P 992 P CN12-10 Rev. 100 ms 40 ms 66 P EL CN14-1 CN14-2 20 ms 50 ms 120 ms SVSYNC...

  • Page 327: Timing Chart No. 6

    2AB-1 Timing chart No. 6 Fixing temperature control for copier mode Preheat on Auto shutoff Standby Secondary stabilization fixing temperature Energy saving mode 165°C/329°F Preheat temperature 150°C/302°F CN21-5 Full speed CFM1 Half speed CN8-22 5 min Full speed CFM2 Half speed CN8-25 CN23-5 3-7-6...
  • Page 328 2AB-1 Timing chart No. 7 Fixing temperature control for printer mode Standby Sleep mode Secondary stabilization fixing temperature 165°C/329°F CN21-5 Full speed CFM1 Half speed CN8-22 Full speed CFM2 Half speed CN8-25 CN23-5 3-7-5-2 3-7-7 2AB (MCE)

  • Page 329: Power Source Pcb (120 V Area)

    Power source PCB (120 V area) H LIVE CN2-2 CN3-2 24 V L002 R201 CN1-1 CN4-1 24 V F001 C201 D201 CN4-2 24 V D001 L001 CN4-3 24 V F201 CN4-4 24 VPRY F202 CN5-2 24 V-2 C101 CN1-2 CN5-3 24 V-3 C006 C005...

  • Page 330: Power Source Pcb (220 - 240 V Area)

    Power source PCB (220 – 240 V area) H-LIVE CN2-2 CN3-2 24 V L002 R201 CN1-1 CN4-1 24 V F001 D201 C201 SORTER LIVE CN7-1 CN4-2 24 V D001 L001 CN4-3 24 V F201 CN4-4 24 VPRY F202 SORTER NEUTRAL CN7-2 CN5-2 24 V-2...
  • Page 331 Main PCB C101 C102 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114 3-7-10 3-7-8 2AB (MCE)
  • Page 332 Main PCB AD(15:0) ˙004_03A˙ AB(23:1) ˙004_02A˙ R136 ASTB_ ASTB ˙004_03D˙ R135 ˙004_03D˙ R134 WRL_ CPUX1 ˙004_03D˙ ˙027_09A˙ R133 WRH_ ˙004_03D˙ R102 R132 IORD_ D8H16L IORD ˙004_03D˙ IOWR_ R131 R101 IOWR ˙004_03D˙ R130 DEX_ ˙004_03E˙ RESET_ R153 ˙004_09G˙ R129 SYSCLK CLKO ˙004_09G˙...
  • Page 333 Main PCB CPDBUS(208:1) ˙004_01A˙ REFRQL IDB10 DACK1L IDB11 DACK0L IDB12 READYL IDB13 RESETL IDB14 DEKL IDB15 RASL IORDL IOWRL WRLL WRHL ASTBL AB23 AB22 AB21 AB20 AB19 AB18 ASIC CPD IA10 AB17 IA11 AB16 IA12 IA13 AD15 IA14 AD14 IA15 AD13 IA16 AD12...

  • Page 334: Main Pcb

    Main PCB CPDBUS(208:1) ˙003_11A˙ MAB (9:0) SAB(15:1) IAB (23:0) AB(23:16) ˙009_02A˙ ˙008_09C˙ ˙002_02A.005_01B˙ ˙005_01B˙ AD(15:0) SDB(15:0) ˙005_01A˙ ˙002_02A˙ R211 R242 R243 R286 R212 R287 R213 R244 R245 R288 R214 R289 R215 R246 R247 R290 R216 R291 R217 R248 R249 R292 R218 R293 R219...
  • Page 335 Main PCB SDB (15:0) ˙004_05A.006_02A˙ AB (23:16) ˙004_02A.021_05A˙ SAB (15:1) ˙004_04A.006_02A˙ 512Kx16 EEPROM R309 RESET_ ˙004_09G.006_08F˙ CSFLM_ ˙004_05F˙ C303 C304 ˙004_03D.006_02D˙ WRFLM_ ˙004_05F˙ GND2 BYTE GND1 FLASH MEMORY 3-7-14 3-7-12 2AB (MCE)

  • Page 336: Main Pcb

    Main PCB SDB (15:0) ˙005_01A.007_01A˙ SDA (15:1) ˙005_01B.007_01A˙ 32Kx8 SRAM C407 CSSRM_ ˙004_05F˙ L401 IC38 R410 C401 ˙005_01E.007_01E˙ WRSRM_ ˙004_05F˙ R401 R403 R409 C406 R405 RESET_ ˙005_01E.008_02C˙ IC35 R402 BAT1 IC37 R407 C403 RSTIN RST+ R408 C404 SRAM & BACKUP 3-7-15 3-7-13 2AB (MCE)
  • Page 337 Main PCB SDB (15:0) ˙006_02A.008_02A˙ SAB (15:1) ˙006_02A.008_02A˙ 1Mx16 DRAM VCC3 VCC2 CASU CASL VCC1 C508 C509 C510 GND3 GND2 GND1 OMRAS_ ˙022_09E˙ OMCAS0H_ ˙022_09C˙ OMCAS0L_ ˙022_09E˙ ˙006_02D.021_06E˙ WRDRM_ ˙004_05F.021_06E˙ 3-7-16 3-7-14 2AB (MCE)

  • Page 338: Main Pcb

    Main PCB SDB (15:0) '007_01A.010_02A' SAB(15:1) '007_01A.010_02A' IOA3 IOD15 IOA2 IOD14 IOA1 IOD13 IOA0 IOD12 IOD11 IC13 IOD10 IOD9 ACEE IOD8 IOD7 IOD6 CLK16M IOD5 '004_09G.010_02C' IOD4 RESET_ '006_08F.010_09B' IOD3 IOD2 CSACE_ IOD1 '004_05E' SIORD_ IORD '004_05E.012_02D' IOD0 SIOWR_ '004_05E.010_02F' IOWR INTACE '002_02D'...
  • Page 339 Main PCB IDB (15:0) '008_02E, 010_02F' MAB (9:0) '004_10A, 025_03A' IC14 512K×8DRAM VCC2 VCC1 C807 C808 IRAS0_ '004_10C, 025_02E' ICAS0_ '004_10D' IRD_ GND2 '008_09F, 010_02D' IWR_ GND1 '008_09F, 010_02D' IC15 512K×8DRAM VCC2 VCC1 C809 C810 GND2 GND1 BIT MAP MEM 3-7-18 3-7-16 2AB (MCE)
  • Page 340 Main PCB SDB (15:0) '008_02A, 012_02B' SAB (15:1) CSRC_ '004_05E' '008_02A, 012_02A' RDRC_ '004_06G' RESET_ '008_02C, 012_02D' INTRC_ IRQL '002_02D' CLK16M CLK16M '008_02B, 016_10E' BREQ2_ TST5 IMBREQL '004_10D' BACK2_ TST4 IMBACKL '004_10D' TST3 IMA23 TST2 IMA22 IC16 TST1 IMA21 TST0 IMA20 IAS_ '004_07F, 016_10E'...
  • Page 341 Main PCB FIPBUS (208:1) '012_01A' FI4D2 FI4D3 FI4D4 WR2L FI4D5 OE2L FI4D6 FI4D7 SA212 SA211 SHSYNCL SA210 SVSYNCL SA29 FHSYNCL FVSYNCL SA28 RRS2L SA27 WRS2L SA26 SA25 SA24 EK0D0 IC17 EK0D1 SA23 EK0D2 SA22 EK0D3 SA21 SA20 EK0D4 EK0D5 SD17 EK0D6 SD16 EK0D7...
  • Page 342 Main PCB FIPBUS (208:1) '011_11A' FS1A (12:0) SAB (15:1) '014_02A' '010_02A, 016_02A' EK0D (7:0) FI0D (7:0) '014_05E' '013_02B' R941 R933 R905 R942 R934 R906 R935 R943 R907 R944 R936 R908 R945 R937 R909 R938 R946 R910 SDB (15:0) R947 '010_02A, 016_02B' R939 R911 EK1D (7:0)
  • Page 343 Main PCB FI1D (7:0) FI2D (7:0) FI3D (7:0) FI4D (7:0) FI0D (7:0) '012_07B' '012_07C' '012_07D' '012_07E' '012_07A' IC18 IC19 IC20 IC21 8Kx8 LINE 8Kx8 LINE 8Kx8 LINE 8Kx8 LINE RRST RRST RRST RRST L902 L903 L904 L905 WRST WRST WRST WRST C910 C911...
  • Page 344 Main PCB IC22 IC23 FS1D (7:0) FS2D (7:0) 32Kx8 SRAM 32Kx8 SRAM '012_05C' '012_05E' FS1A (12:0) FS2A (12:0) '012_05A' '012_05D' L906 L907 FRDS1_ C918 FRDS2_ C919 '012_05D' '012_05F' FWRS2_ FWRS1_ '012_05D' '012_05F' IC24 IC25 ESVD (7:0) EK0D (7:0) EK1D (7:0) '012_10A' '012_10B' '023_02A'...
  • Page 345 Main PCB VCBUS (208:1) '016_01A' IMWAITL FFR15 TST6 FFR16 FFR17 FF6RCK IMA0 FF5RRSL IMA1 FF6WCK IMA2 FF6WRSL IMA3 IMA4 IMA5 FF600 IMA6 FF601 IMA7 FF602 FF603 IMA8 FF604 IMA9 FF605 IMA10 FF6I0 IMA11 FF6I1 IC26 IMA12 FF6I2 IMA13 FF6I3 IMA14 FF6I4 IMA15 FF6I5...
  • Page 346 Main PCB VCBUS (208:1) '015_11A' IAB (23:0) '010_09F' SAB (15:1) VFIPD (7:0) '012_02A, 020_07A' '017_01A' R1002 R1003 VFI1WRS_ FNITI '018_02F' '012_02F' VFI1RRS_ R1004 '018_02F' VFI1WCK R1005 R1027 FHSYNC_ '018_02F' '012_02F' VFI1RCK R1006 R1028 FVSYNC_ '018_02F' '012_02F' R1007 R1008 VFI2WRS_ VMREOUT_ '018_02F' '021_02E' SDB (15:0)
  • Page 347 Main PCB IDB (15:0) '010_02F, 018_02A' IC29 IC27 VFIPD(7:0) VFIDPDD (7:0) '016_07A' IC40 8Kx8 LINE 5Kx8 LINE VF6I (5:0) VF6O (5:0) '016_07C' '016_07D' VFO1RE_ '016_07C' VF6RRS_ VFO1RRS_ '016_07E' RRST RRST L1003 '016_07B' L1001 VF6WRS_ VFO1WRS_ WRST '016_07E' WRST '016_07B' C1013 VF6RCK '016_07E' RCLK...
  • Page 348 Main PCB VFI2D (7:0) '016_09D' IC31 VFIDB(7:0) IDB (15:0) '017_06A, 025_03A' IC42 5Kx8 LINE RRST L1005 WRST C1021 RCLK WCLK VFI1D (7:0) '016_09C' IC32 IC43 5Kx8 LINE RRST VLICK L1006 WRST '016_09B' C1022 VLIEN2_ '016_09C' VLIEN1_ RCLK '016_09B' WCLK VFI2RRS_ '016_09B' VFI2WRS_ '016_09B'...
  • Page 349 Main PCB VSD (7:0) '016_05D' VSA (14:0) '016_05B' IC33 32Kx8 SRAM VCSS_ L1007 '016_05E' VRDS_ C1023 '016_05E' VWRS_ '016_05E' VC SRAM 3-7-28 3-7-26 2AB (MCE)

  • Page 350: Main Pcb

    Main PCB OPD (7:0) SDB (15:0) SAB (15:1) '016_02B, 021_02A' '024_08C' '016_02A, 021_06A' IC45 IC46 OPA (10:1) '024_08C' R1101 R1102 R1103 R1104 R1105 R1106 R1107 R1108 OPDIR '004_09F' OPLEN GND GND '004_09F' IC47 DREQ1_ OPDRQ0_ '024_06B' '002_02D' DACK1_ OPDAK0_ '004_03E' '024_06F' OPRST_ RESET_...
  • Page 351 Main PCB SDB (15:0) OMD (15:0) '020_02A' '023_08B' IC51 R1201 IC54 R1202 AB (23:16) OMA (18:1) '005_01B' '023_08G' R1203 R1219 SAB (15:1) R1204 R1220 '020_07A' R1205 R1221 R1206 R1222 R1207 R1223 R1208 R1224 R1225 R1226 GND GND IC52 R1209 IC55 R1210 R1211 R1227...

  • Page 352: Main Pcb

    Main PCB SCASH_(4:0) '004_03E' IC57 R1237 OMCAS4H_ '023_08E' R1238 OMCAS3H_ '023_08E' R1239 OMCAS2H_ '023_08E' R1240 OMCAS1H_ '023_08E' IC58 R1241 OMCAS0H_ '007_01D' SCASL_ (4:0) R1242 '004_03E' OMCAS4L_ '023_08E' R1243 OMCAS3L_ '023_08E' R1244 OMCAS2L_ '023_08E' IC59 R1245 OMCAS1L_ '023_08D' IC79 R1246 OMCAS0L_ '007_01E' SRAS_ '004_05E'...
  • Page 353 Main PCB ENGINE OPTION MEM. R1302 ESVCLK R1301 '014_02F, 024_06D' ESVD (7:0) '014_02E, 024_06C' R1303 R1304 R1335 R1305 R1306 CSSEL_ '004_05F' R1307 OMD (15:0) '021_05A' R1308 R1309 R1310 ECPRDY '016_09E' R1312 R1311 EPVSYNC_ '020_07F' R1314 EPHSYNC_ R1313 '020_07F' ESRDY_ R1319 '016_09F' EPTIM '021_05E'...
  • Page 354 Main PCB OPTION PRINTER BOARD OMREOUT_ R1411 '021_02E' R1412 DCLK '021_02E' R1405 ONITIOUT_ '021_02E' R1406 OPDRQ0_ '020_07D' ESVD (7:0) '023_02A' OPD (7:0) '020_06A' OPA (10:1) '020_10A' I / 0 OPTIM '021_02E' ESCINHI '023_01G' ESVCLK '023_02A' ESVSYNC_ '023_01D' ESHSYNC_ '023_01D' OLSUOUT_ '020_10F' OPHSYNC_ '020_10F'...
  • Page 355 Main PCB IDB (15:0) '018_02A' MAB (9:0) '009_02A' BITMAP MEM. IWR_ '016_10D' IRD_ '016_10D' IRAS0_ '009_02C' ICAS1_ '004_10D' ICAS2_ '004_10C' ICAS3_ '004_10C' ICAS4_ '004_10C' BIT MAP MEM I/F 3-7-34 3-7-32 2AB (MCE)
  • Page 356 Main PCB KPSDO '002_10F' IC60 KPSCLK OPCB PSPCB '002_10F' L1501 IC60 R1501 C1501 C1502 L1502 KPSDI R1502 '002_02F' STATUS +12 V IC60 SCLK –12 V KPSIGI '002_10D' SIG1 KPSIGO 24VIN '002_10D' SIG2 24 V +24V GND GND L1503 C1508 C1507 C1510 C1511 C1512...
  • Page 357 Main PCB R1701 R1603 CPUX1 '002_02B' R1702 IC61 IC61 R1604 R1601 R1703 CLK32M '004_09G' R1704 IC61 R1602 IC62 R1705 R1605 CLK16M '016_10E' R1706 C1601 C1602 C1603 R1712 R1711 R1713 R1707 R1710 R1606 FXTAL '012_07F' C1604 R1709 R1708 IC61 L1601 L1602 IC62 IC61 IC62...
  • Page 358 Engine PCB REF5V IC38 CPU5V DALD DACLK DBVR C160 R262 SMVR _CMOTVREF C142 C149 R209 C166 _SBSY CCLK CPU5V _CMD GRIDVR _HUMUSIG _RXD_SORTER TVGR _DENISIG _TXD_SORTER SZDET THERMISTOR R225 R224 C150 IC39 R413 R391 R412 TONER R219 R390 P95/_INT3 R411 _CPUADJUST R218 R389...
  • Page 359 Engine PCB IC29 *SW2 *D23 _SENS3 *D24 _SENS4 *D25 _SENS5 *R394 _SCAN5 /RESET φ FXECLK XIOINT C223 C222 IC20 /LDS R515 /XIOCS IC20 R570 IC20 IC20 R510 R511 IC20 R512 R513 IC20 R514 IC20 _PE1FSW _PE2FSW _PE3FSW R165 *CN25-1 *CN25-2 SOUT *CN25-3 SCLK...
  • Page 360 Engine PCB _LDS IC25 IC26 IC31 _OE1 IC31 _OE2 _OE3 IC30 IC14 _OE4 R177 ADCCLK1 ADCCLK1 ADCCLK ADCCLK2 R174 R166 ADIN1 ADIN2 R160 R113 R186 ID10 R455 ID20 C224 R105 R185 ID11 R456 ID21 C225 IC25 R101 R184 ID12 R457 ID22 R183 ID13...

  • Page 361: Engine Pcb

    Engine PCB VTC5V _PVD0 VTC5V _RES R369 C183 C186 R366 R328 C179 C178 VTC5V VTC5V VTC5V _CPRDY R348 _LDOUT /LDOUT /LDON R363 R273 LBON R499 PWMD0 /ADJUST _ADJUST R370 PWMD1 DACLK R371 DALD PWMD2 R500 PWMD3 _CPULDON R501 _PRDY PWMD4 R502 PWMD5 PMCLK...

  • Page 362: Engine Pcb

    Engine PCB SVD4 SVD3 SVD5 SVD2 SVD6 SVD1 SVD7 SVD0 SHD5V SHD5V _RSTWR C145 C159 C158 SVCLK C146 R267 _SVSYNC R236 SHD5V _SHSYNC _PHSYNC SHD5V R257 C151 R258 SHD5V IC46 C155 C156 WRD0 R332 WWD0 WRD1 WWD1 R333 C157 WRD2 R334 WWD2 WRD3...
  • Page 363 Engine PCB IC13 R134 ADIN1 IC22 – *C43 – R103 *R104 *R72 R173 IC11 R146 – R145 R102 _CLAMP IC24 R139 R136 ADIN2 IC12 R137 *C71 R124 R147 – R135 – * R138 R115 *R141 R142 R159 IC23 R148 R150 R123 –...

  • Page 364: Engine Pcb

    Engine PCB CN1-1 24VIN 24VIN CN1-2 CN5-1 24V-2 24VR CN4-1 CN1-3 24VOUT 24VOUT R447 IC31 CN4-2 24V-3 R518 IC17 R446 CS1PFCL CN5-2 _FEED.CL 24V-2 CN1-4 EJOP SSW3 CN4-3 CN4-4 *D39 R519 CN1-5 24V-3 24VIN CN4-5 24VIN C101 24V-2 FET7 CN5-3 R449 CN4-6 CN1-6...

  • Page 365: Engine Pcb

    Engine PCB * R436 * D30 CN8-1 _SCAN4 SCAN4 * D16 SCAN4 CN9-1 _SCAN4 * R315 _SENS0 BYPPSW1 (1) CN8-2 DEV A CN9-2 _SENS3 SCAN0 CN6-1 _SCAN0 _SENS1 BYPPSW2 (2) CN8-3 CN9-3 _SENS4 DEV B CS1PSSW1 CN6-2 _SENS2 BYPPSW3 (3) CN8-4 CN9-4 _SENS5...
  • Page 366 Engine PCB IC33 CN10-1 5V-1 CN24-1 EL REM1 CN14-1 _INVERTER CN10-2 5V-1 R481 ODSW CN24-2 _ORGSW EL REM2 CN14-2 R482 CN10-3 _TBLSZ1 OSSW CN24-3 24VIN CN14-3 24VIN 5V-1 CN24-4 24VIN CN14-4 CN11-1 5V-1 SHPSW CN24-5 _LMPHP CN11-2 CN14-5 CN24-6 CN14-6 CN24-7 24VIN CN12-1...

  • Page 367: Engine Pcb

    Engine PCB IC36 IC10 CN16-1 CN18-1 24V-2 R550 IC36 CN16-2 IC51 24V-2 CN18-2 IC10 R430 CN16-3 CS2PFCL CN18-3 _PFCL1F IC36 9,16 IC10 R551 IC42 CN16-4 IC51 STPFCL1 CN18-4 _PFCL2F R403 CN16-5 CCDCLK1 CCDCLK1 STPFCL2 CN18-5 _PFCL3F R552 IC37 IC10 CN16-6 IC42 IC51 CSFCL...
  • Page 368 Engine PCB R300 R357 IC27 R437 IC44 IC27 SVCLK CN19-1 SVCLK _PVSYNC CN19-16 _PVSYNC EPRDY CN19-31 EPRDY R352 R353 R345 CN19-2 CN19-17 CN19-32 _CMD IC32 C178 R344 IC37 R412 IC44 R280 IC31 IC32 SVD0 CN19-3 SVD0 _PHSYNC CN19-18 _PHSYNC CN19-33 _STS R338 R395...

  • Page 369: Engine Pcb

    Engine PCB R558 OCM M1 CN13-1 _CMOTM1 OFSOL R CN13-14 _FDSOLR 5V-1 CN22-1 IC16 5V-1 CN22-2 OCM M2 CN13-2 _CMOTM2 SBSFSOL CN13-15 _REVSETSOL CN22-3 R559 CN22-4 OCM M3 CN13-3 _CMOTM3 TC ARG1 CN13-16 _REVPRSSOL DSSW CN22-5 _SETSW IC16 R232 OCM Vref CN13-4 _CMOTVREF EFSSOL...
  • Page 370 Engine PCB IC28 _LEDG _LEDR _FDCL _REVSETSOL _EJSETSOL _FDSOLA _FDSOLR _REVPRSSOL _YOBI1 _YOBI2 R507 _RES /RESET _TMOT1 φ R508 FXECLK _TMOT2 XIOINT TDET _FDRHEATREM /LDS _LDS _FMOTCWB /XIOCS _FMOTRET _XIO2CS _FMOTENB _YOBI4 _YOBI6 _YOBI5 _YOBI7 _REVSW2 _REVSOL1 _EJOPOVFSW _REVSOL2 R143 _YOBI8 _CMOTCWB _YOBI9...
  • Page 371 Motor PCB 24 V CN7-1 24 VIN SM A CN1-10 CN7-4 24 VIN SM B CN1-11 CN7-6 SM A SM A CN1-12 CN7-3 SM B SM B CN1-13 CN7-5 SM A CN7-2 SM B SMREF CN1-9 – – R11 13 CN8-3 24 VIN EM CLK...
  • Page 372 Cassette motor PCB 24 V 24 V Input CN1-1 24 V Input CN1-2 24 V CN1-3 CN1-4 24 V CN1-5 24 V Output CN1-6 24 V Output CN1-7 5 V Input CN1-8 CN1-9 CN1-10 5 V Output CN1-11 SG Input CN1-12 CN1-13 CN1-14...

  • Page 373: Connection Diagram

    Connection diagram *1 : Option *2 : Service parts F H* CS2PFCL CSFCL SCAN1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 CS2PSSW1 CS2PSSW2 CS2PSSW3 CS2PSSW4 CS2SSW SENS CS2PSSW1 Output SENS CS2PSSW2 Output SENS CS2PSSW3 CSMOTPCB...
  • Page 374 Operation unit PCB TR15 LED17 LED9 LED1 TR16 LED18 LED10 LED2 TR17 SW10 SW11 SW12 SW13 SW14 SW15 SW16 GND C TR18 SW17 SW18 SW19 SW20 SW21 SW22 SW23 SW24 LED19 LED11 LED3 TR19 RESET AVRBF SW25 SW26 SW27 SW28 SW29 SW30 SW31...
  • Page 375 MITA COPYSTAR SOUTH AMERICA S.A. Av. Mitre 1345 Florida (1602) Pcia, Buenos Aires, Argentina. TEL : (54) 1-730-1070 FAX : (54) 1-760-2071 ©1998 MITA INDUSTRIAL CO., LTD. MITA and are registered trademarks of MITA INDUSTRIAL CO., LTD. Printed in U.S.A.

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