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Mita PointSource Ai 1810F Service Manual

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PointSource
Ai 1810F
SERVICE
MANUAL
Published in Oct. '99
2A570760
PointSource Ai1810F (MCA) S/M

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Summary of Contents for Mita PointSource Ai 1810F

  • Page 1 PointSource Ai 1810F SERVICE MANUAL Published in Oct. ’99 2A570760 PointSource Ai1810F (MCA) S/M...
  • Page 2 CAUTION DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY RE- PLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE RECOMMENDED BY THE MANUFACTURER. DISPOSE OF USED BATTERIES ACCORDING TO THE MANUFAC- TURER’S INSTRUCTIONS. ATTENTION IL Y A DANGER D’EXPLOSION S’IL Y A REMPLACEMENT IN- CORRECT DE LA BATTERIE.
  • Page 3 SERVICE MANUAL PointSource Ai 1810F...

  • Page 4: Safety Precautions

    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 5: Safety Warnings And Precautions

    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 6: Installation Precautions

    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 7: Precautions For Maintenance

    • 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 8 • 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 9 • 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 10 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 1-2-3 Backup RAM error report .............. 1-2-1 1-3 Mechanical Construction 1-3-1 Parts names and their functions ............ 1-3-1 1-3-2 Machine cross section ..............
  • Page 11 3-4-3 Replacing the engine PCB ............3-4-7 3-4-4 Adjustment-free variable resisters (VR) ........3-4-8 3-4-5 Updating the firmware on the printer board ........3-4-9 3-5 Self-Diagnosis 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 ................3-6-15 3-6-3 PCB terminal voltages ..............
  • Page 12 Engine PCB 4/12 ..................3-7-40 Engine PCB 5/12 ..................3-7-41 Engine PCB 6/12 ..................3-7-42 Engine PCB 7/12 ..................3-7-43 Engine PCB 8/12 ..................3-7-44 Engine PCB 9/12 ..................3-7-45 Engine PCB 10/12 ..................3-7-46 Engine PCB 11/12 ..................3-7-47 Engine PCB 12/12 ..................

  • Page 13: Specifications

    CONTENTS 1-1 Specifications 1-1-1 Specifications ..................1-1-1 1-1-5...
  • Page 14 1-1-1 Specifications Type …………………………… Desktop Copying system ……………… Dry indirect electrostatic system Originals ……………………… Sheet and books 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 45 –...
  • Page 15 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 16 Line requirement ……………… Subscription telephone line Intercommunication …………… Super Group 3 Communication system ……… Half-duplex Modulation system …………… QAM/PhM/TCM Data compression …………… JBIG/MMR/MH/MR Modem modulation speed …… 33600/31200/28800/26400/24000/21600/19200/16800/ 14400/12000/9600/7200/4800/2400 bps Scanning line density ………… 8 dots/mm × 3.85 lines/mm in normal mode 8 dots/mm ×...
  • Page 17 CONTENTS 1-2 Handling Precautions 1-2-1 Handling and storing the imaging unit ..........1-2-1 1-2-2 Storing toner ..................1-2-1 1-2-3 Backup RAM error report ..............1-2-1 1-1-7...

  • Page 18: Backup Ram Error Report

    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 19: Mechanical Construction

    CONTENTS 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 ..............1-3-7 (1) Paper feed section ..............1-3-7 (1-1) Paper feed from the drawer ..........1-3-9 (1-2) Paper feed from the bypass table ........
  • Page 20 1-3-1 Parts names and their functions & · ⁄ ‹ ¤ › fi fl — ‡ Figure 1-3-1 1 DF (sheet-through DF) 8 Main switch % LINE connector ¤ Front cover 2 Original table 9 Drawer ^ Contact glass ‹ Toner cartridge 3 Auxiliary original table 0 Length guide &...
  • Page 21 ⁄ — fl ‚ ´ Œ ‚ „ ‡ & ‹ › ‰ ˇ Á ^ · ¤ fi Cover plate closed Cover plate open Figure 1-3-2 Operation panel 1 Message display 0 Zoom-up key ( Copy exposure adjustment keys —...

  • Page 22: Machine Cross Section

    1-3-2 Machine cross section Light path Paper path Figure 1-3-3 Machine cross section (copier main body and DF) 1 Paper feed section (page 1-3-7) 2 Main charging section (page 1-3-11) 3 Optical section (page 1-3-13) 4 Developing section (page 1-3-20) 5 Transfer section (page 1-3-25) 6 Cleaning section (page 1-3-27) 7 Charge erasing section (page 1-3-28)

  • Page 23: Drive System

    1-3-3 Drive system ´ · ‚ Œ „ ° ‡ % fl & ‹ ⁄ fi › ¤ As viewed from machine rear Figure 1-3-4 Drive system (copier main body) 1 Drive motor pulley * Joint idle gear 27 2 Main drive belt ( Fixing idle gear 22 3 Idle pulley 110/22 ) Heat roller gear...
  • Page 24 As viewed from machine front Figure 1-3-5 Drive system (front side of the imaging unit) 1 Left developing spiral gear 4 Cleaning spiral gear 2 Middle developing spiral gear 5 Front drum 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 25 As viewed from machine rear Figure 1-3-7 Drive system (DF) 1 DF motor gear 7 Forwarding pulley gear 2 Gear 15/21/40 8 Eject gear 28 3 Gear 15/29 9 DF pulleys 16 4 Original feed gear 31 0 DF belt 5 Original feed pulley gear ! DF tension pulley 6 Idle gear 14...
  • Page 26 1-3-4 Mechanical construction (1) Paper feed section ¤ ⁄ & › ‹ fl ‡ ° · fi 9 ‚ !7 65 2 Figure 1-3-8 Paper feed section 1 Bypass table ^ Registration spring 2 Bypass lift & Pre-transfer guide 3 Bypass paper feed pulley * Transfer roller 4 Bypass lift cam ( Post-transfer guide...
  • Page 27 The paper feed section consists of the primary feed and secondary feed subsections. Primary feed conveys paper from the drawer or bypass table to the right and left registra- tion rollers, at which point secondary feed takes place and the paper travels to the transfer section in sync with the printing timing.
  • Page 28 (1-1) Paper feed from the drawer The drawer consists of the drawer lift and drawer spring. The drawer can hold up to 250 sheets of paper. Paper is fed from the drawer by the rotation of the paper feed pulley. Print signal: on Start key PVSYNC signal...
  • Page 29 (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 second- ary paper feed section.
  • Page 30 (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 31 At least 500 ms and after the laser diode is turned on. Start key MC REM 100 ms 100 ms GRID CONT 100 ms 100 ms 150 ms 100 ms DB CONT 150 ms 3800 ms Timing chart 1-3-3 Main charging A At least 500 ms after the drive motor (DM) is turned on by pressing the start key and after the laser diode is turned on, main charging (MC REM) starts.
  • Page 32 (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 1-3-12 Optical section 1 Scanner 8 Image scanning unit 2 Mirror frame 9 Lens 3 Mirror 1 0 Optical rail 4 Mirror 2...
  • Page 33 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 34 Scan signal Fwd. rotation 560 – 800 P 992 P 40 ms 100 ms Rev. rotation 2500 P 120 ms 50 ms 20 ms SVSYNC During scan: 446 – 686 pulses During copy: 398 – 638 pulses SHPSW D E F Timing chart 1-3-4 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...
  • Page 35 Scan signal Fwd. rotation 992 P 560 – 800 P 58 – 154 P Rev. rotation 2500 P 150 P Fwd. rotation 50 ms Rev. rotation 120 ms 20 ms 50 ms SVSYNC During scan: 200 – 520 pulses During copy: 168 – 488 pulses 75 –...
  • Page 36 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 repeat- edly turning the laser on and off, the laser scanner unit forms a static latent image on the drum surface.
  • Page 37 Drum Figure 1-3-15 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 38 The dimensions of the laser beam are as shown in Figure 1-3-16. 70 µm 65 µm Figure 1-3-16 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 39 (4) Developing section Toner cartridge Toner hopper spiral Imaging unit Figure 1-3-18 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. 1-3-20...
  • Page 40 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 41 TFM1 CN9-18 TFM2 CN9-19 5 V DC CN9-20 CN9-21 CN9-6 Developing bias DB CHG CN8-10 CN1-6 DB CONT CN8-11 CN1-5 EPCB HVTPCB Figure 1-3-20 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 42 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 43 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 44 (5) Transfer section Transfer roller Transfer toner removal blade Figure 1-3-22 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. The transfer toner removal blade removes the residual toner on the transfer roller.
  • Page 45 Secondary paper feed start 500 ms 300 ms 5 – 105 ms 130 – 190 ms* 230 – 290 ms* PVSYNC 650 ms 470 ms TC REM *1 During paper feed from the drawer/special cassette *2 During paper feed from the bypass table Timing chart 1-3-6 Transfer A 470 ms after the PVSYNC signal turns on, transfer charging (TC REM) starts.
  • Page 46 (6) Cleaning section Figure 1-3-24 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 47 (7) Charge erasing section Cleaning lamp Figure 1-3-25 Charge erasing section The cleaning lamp (CL) consists of 10 LEDs which remove residual charge from the drum surface. CL REM CN5-17 Drum EPCB Figure 1-3-26 Charge erasing block diagram 1-3-28...
  • Page 48 At least 500 ms and after the laser diode is turned on. Start key MC REM 100 ms 1200 ms GRID CONT 100 ms 100 ms 100 ms 150 ms 100 ms DB CONT 150 ms 3800 ms Timing chart 1-3-7 Charge erasing A After the start key is pressed, the drive motor (DM) turns on and, at the same time, the cleaning lamp (CL) lights to remove the residual charge from the drum surface after the residual toner is removed in the cleaning section.
  • Page 49 (8) Fixing and eject section The fixing and eject section consists of the parts shown in Figure 1-3-27. 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 50 PSPCB Heat roller CN2-1 CN2-2 EPCB Figure 1-3-28 Fixing section block diagram 1-3-31...
  • Page 51 Heating the heat roller and detecting temperature Figure 1-3-29 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 52 Fixing temperature control MSW: On Secondary stabilization fixing 165°C/329°F temperature Primary 130°C/266°F 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 60 s Half speed Timing chart 1-3-8 Fixing temperature control A 1.5 s after the main switch (MSW) is turned on, the fixing heater (H) turns on and heats...
  • Page 53 Paper separation Paper is separated in the fixing section by the separation claws as shown in Figure 1-3-30. Heat roller separation claws Heat roller Figure 1-3-30 Paper separation 1-3-34...
  • Page 54 (9) DF The sheet-through DF consists of the parts shown in Figure 1-3-31. An original placed on the original table is conveyed onto the DF contact glass in sync with the scanning timing of the scanner. When the main switch is pressed or original feed is completed, the DF original feed pulley rotates opposite to the original feed direction, the forwarding spring touches the original stopper and the DF forwarding pulley rises and stops at the standby position.
  • Page 55 EPCB MOTPCB CN12-1– CN2-1– CN12-2 CN2-6 DFSDPCB CN1-8 CN13-14 DFTSW CN2-3 Figure 1-3-32 Sheet-through DF block diagram • Initial operation when turning on the main switch MSW: On Fwd. rotation 992 P Rev. rotation 40 ms 1000 P Fwd. rotation 800 P Rev.
  • Page 56 • Original feed operation during copying Scan signal 560 – Fwd. rotation 800 P 992 P 106 P Rev. rotation 2500 P 150 P Fwd. rotation Rev. rotation 50 ms 120 ms 20 ms 50 ms SVSYNC During scan: 200 – 520 pulses During copy: 168 –...

  • Page 57: Electrical Parts Layout

    CONTENTS 2-1 Electrical Parts Layout 2-1-1 Electrical parts layout ................2-1-1 1-1-11...
  • Page 58 2-1-1 Electrical parts layout Machine front Machine inside Machine rear Figure 2-1-1 PCBs 1. Main PCB (MPCB) ..........Controls the other PCBs; modulates and demodulates image signals. 2. Power source PCB (PSPCB) ......Generates 24 V DC, +12 V DC, –12 V DC, 5 V DC and 75 V AC.
  • Page 59 2 19 6 7 8 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 60 11. Bypass paper size switch (BYPPSSW) ....Detects the size of paper on the bypass table. 12. Original detection switch (ODSW) ...... Operates the original size switch. 13. Original size switch (OSSW) ....... Detects the size of the original on the contact glass.
  • Page 61 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 62 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 63 Machine front Machine inside Machine rear Figure 2-1-5 DF 1. DF motor (DFM) ..........Drives the sheet-through DF. 2. DF safety switch (DFSSW) ......... Breaks the safety circuit when the DF cover is opened; resets original jam detection. 3. DF size detection PCB (DFSDPCB) ....Detects the presence and size of paper on the original table.
  • Page 64 CONTENTS 2-2 Detection of Paper Misfeed 2-2-1 Paper misfeed detection ..............2-2-1 2-2-2 Paper misfeed detection conditions ............ 2-2-2 (1) Main body ..................2-2-2 (2) DF ....................2-2-4 (3) Special cassette ................2-2-4 1-1-13...

  • Page 65: 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, eject cover or DF cover as necessary.

  • Page 66: Paper Misfeed Detection Conditions

    2-2-2 Paper misfeed detection conditions (1) Main body • Either the registration switch (RSW) or eject switch (ESW) is on when the main switch is turned on. • The registration switch (RSW) does not turn on within 2000 ms after the paper feed clutch (PFCL) turns on.
  • Page 67 • The eject switch (ESW) does not turn off within 3700 ms after the registration clutch (RCL) turns off. 3700 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 68 (2) DF • The DF timing switch (DFTSW) is still on after the main switch has been turned on and the initial operation of the scanner has completed. • An original jam occurs under any of the following conditions when turning the DF motor (DFM) on after the scanner moves to the scanning start position.
  • Page 69 CONTENTS 2-3 Operation of the PCBs 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 NCU PCB .................... 2-3-8 1-1-15...

  • Page 70: Power Source Pcb

    2-3-1 Power source PCB PSPCB Rectifier circuit 15 V DC 75 V AC 75 V AC output 24 V DC circuit switching 75 V AC IC9, 10 control Noise Switching circuit filter control circuit circuit –12 V DC –12 V DC output circuit +12 V DC...
  • Page 71 The power source PCB (PSPCB) is a switching regulator that generates 5 V DC, ±12 V DC, 24 V DC and 75 V AC (15.3 to 20 Hz) from the AC supply. It consists of the noise filter circuit, rectifier circuit, switching control circuits, –12 V DC output circuit, +12 V DC output circuit, 24 V DC output circuit, 5 V DC output circuit, 24 V DC switching control circuit, 75 V AC output circuit and fixing heater control circuit as shown in Figure 2-3-1.
  • Page 72 2-3-2 Main PCB Speaker NCU PCB Backup battery Lithium Backup Backup Analog circuit Operation battery circuit 2 circuit 1 unit PCB To CPU DRAM Modem Flash SRAM SRAM work and coder memory IC81 image IC82 IC11 memory Memory board 16 bits 8 bits 4 bits 16 bits (option) 16 bits...

  • Page 73: Engine Pcb

    2-3-3 Engine PCB Reset RESET circuit IC36 Analog IC34 Address bus circuit Data bus IC24 converter IC21 EEP- Abnormally IC38 high temperature FIFO detection circuit IC35 FIFO Driver Driver MPCB CFM1 IC17 CFM2 IC40 PFCL Driver BYP- PFCL etc. Switches, sensors Figure 2-3-3 Engine PCB block diagram The engine PCB (EPCB) controls the machine drive system and the inputting and printing...
  • Page 74 SHD IC35 and VTC IC40 control the inputting and printing of image data. SHD IC35 generates the CCD drive signal and corrects non-linearity of the CCD output (image data from the CCDPCB) and VTC IC40 controls printing by outputting the binary image data from the main PCB (MPCB) to the laser scanner unit (LSU).

  • Page 75: Motor Pcb

    2-3-4 Motor PCB 24 V DC MOTSEL 24 V DC 24 V DC MOT A Stepping MOT _A motor MOT B driver MOT _B SMREF Figure 2-3-4 Motor PCB block diagram The motor PCB consists of the stepping motor driver IC (IC3) and 24 V DC supply circuit with transistors TR1 and TR2.

  • Page 76: 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 77 2-3-6 NCU PCB For 120 V specifications IC2b RXIN_N ONHOOK1 L ONHOOK2 L PLSDIL L MODTXD MODRXD Analog IC2a RXSEL L RINGDET L TELSEL L DCCUT L OFFHOOK L +12 V DC EXTEL1 DC-DC EXTEL2 converter AGDC TEL L1 TEL L2 Figure 2-3-6 NCU PCB block diagram The NCU PCB consists of a DC loop circuit with a circuit transformer (T1), a dial pulse output circuit with a photocoupler (PC1), a call signal detection circuit with a photocoupler...
  • Page 78 For 230 V specifications ONHOOK1 L ONHOOK2 L KCMCNT IC2b RXIN_N TELGNP OFFHOOK L PLSDIL L KMUTE IC2b MODRXD Analog RXSEL L MODTXD RINGDET EARTH Figure 2-3-7 NCU PCB block diagram The NCU PCB consists of a DC loop circuit with a circuit transformer (T1), a dial pulse output circuit with a photocoupler (K3), a call signal detection circuit with a photocoupler (PC1), a loop current detection circuit with a current detector (IC1) and a hybrid circuit with an op-amp (IC2).
  • Page 79 CONTENTS 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 ..............3-1-16 3-1-3 Installing the ISU heater (service part) ..........3-1-17 1-1-17...

  • Page 80: Unpacking And Installation

    3-1-1 Unpacking and installation (1) Installation environment 1. Temperature: 10 – 35°C/50 – 95°F 2. Humidity: 15 – 85% RH 3. Power supply: 120 V AC, 8.3 A 230 V AC, 2.3 A 4. Power source frequency: 50 Hz ± 0.3%/60 Hz ± 0.3% 5.
  • Page 81 (2) Installation procedure Start Unpack. Install the original table. Remove the pins. Connect to a telephone line. Install the handset (option).* Remove the tapes. Input and store data. Remove the drawer spacers. Machine installation is completed. Remove the fixing unit spacers. Install the imaging unit.
  • Page 82 Fixing unit felt Pin holding the scanner Fixing unit spacers Pin holding the mirror frame Drawer spacers Figure 3-1-2 3-1-3...
  • Page 83 Unpack. fi ‹ › ⁄ & ¤ Figure 3-1-3 Unpacking 1 Front top pads $ Top spacer 2 Rear top pads % Accessory case 3 Copier ^ Power cord 4 Machine cover & Modular cord 5 Bottom pads * Plastic bag 6 Skid ( Adhesive label 7 Case base...
  • Page 84 Imaging unit Figure 3-1-4 Unpacking the imaging unit 1 Leaflet 5 Imaging unit 2 Fixing unit felt 6 Bottom pads 3 Upper pads 7 Bar code label 4 Light-proof sheet 8 Case 9 Plastic bag 3-1-5...
  • Page 85 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 two tapes holding the front and right covers. 2.
  • Page 86 Remove the drawer spacers. 1. Open the drawer and remove the tape holding the width guide. 2. Remove the tapes and the two drawer spacers. Drawer spacers Tape Drawer Width guide Figure 3-1-7 3. Close the drawer. Remove the fixing unit spacers. 1.
  • Page 87 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 88 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 89 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 90 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 91 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 92 Install the original table. 1. With the DF cover open, hold the original table vertically, insert the ends of its shaft into the shaft holder and lower the original table to the horizontal position. Original table DF cover DF main body Shafts Figure 3-1-19 Connect to a telephone line.
  • Page 93 Install the handset (option).* * For 120 V specifications only. 1. Install the handset cradle on the machine and connect the handset cord to the TEL connector. Input and store data. If the main switch is turned on with paper in the drawer, a backup RAM error report may be output.
  • Page 94 (2) User settings The following functions and data can be entered. • Self telephone number, name and ID • Abbreviated number dialing: Stores an abbreviated number using the keypad that is used for usual dialing. • One-touch keys: Enables one-touch dialing. •...

  • Page 95: 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 shutoff time 30 min. Setting operation under the toner empty condition Single copies 3-1-16...
  • Page 96 3-1-3 Installing the ISU heater (service part) ISU heater installation requires the following parts: ISU heater (P/N 35968060) Two cable holders (P/N M2105410) Procedure 1. Remove the contact glass. 2. Keep the scanner and mirror frame at the machine right. 3.
  • Page 97 CONTENTS 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 ..........3-2-8 1-1-19...

  • Page 98: Maintenance Mode

    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 99: Table Of Contents

    (2) Maintenance function list Section Function Initial Function name value List output Outputting the own-status report ——— Comple- Exiting maintenance mode ——— tion Drive, Moving the scanner to the DF scanning position ——— paper feed Checking drive motor operation ——— Checking the switches in the copier ———...
  • Page 100 Function Initial Section Function name value Optical Adjusting the LSU printing end position in the (cont.) main scanning direction Adjusting home position with the DF Adjusting the shading position Adjusting the magnification in the main scanning direction with the original on the contact glass Adjusting the magnification in the main scanning direction with the original fed from the DF Adjusting the magnification in the auxiliary...
  • Page 101 Section Function Initial Function name value Counts Setting the copy count for waste toner tank replacement Setting the copy limit after the waste toner tank overflow detection Checking and clearing the DF original count ——— Checking and clearing the scan count ———...
  • Page 102 Function Initial Section Function name value User data Setting remote diagnostic transmission ——— (cont.) Data reset Resetting the transmission history ——— System Setting the number of lines to be ignored when settings receiving a fax at 100% magnification Setting the number of lines to be ignored when receiving a fax in auto reduction mode Setting the number of lines to be ignored when receiving a fax (A4R, letter) in auto reduction...
  • Page 103 Section Function Initial Function name value ——— Communi- Setting the waiting period to prevent echo cation problem at the sender ——— setting Setting the waiting period to prevent echo (cont.) problem at the receiver ——— Setting the communication starting speed ———...

  • Page 104: List Output

    Function Initial Section Function name value Modem Adjusting the DTMF (high-frequency group) ——— setting output level (cont.) Adjusting the DTMF (low-frequency group) ——— output level ——— Setting the connection to PBX/PSTN settings ——— Setting PSTN dial tone detection ——— Setting the busy tone detection ———...

  • Page 105: Contents Of Maintenance Functions

    (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 106: Exiting Maintenance Mode

    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. 3-2-9...

  • Page 107: Moving The Scanner To The Df Scanning Position

    Function Description Moving the scanner to the DF scanning position Description Moves the scanner and the mirror frame to the DF scanning positions. Purpose Used when the scanner and mirror frames are to be fastened with pins before moving the machine. Method 1.
  • Page 108 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 (paper switch) On, off B: A3/11" × 17" SIZE (paper size switch 1/2/3/4) "...

  • Page 109: Checking Clutch Operation 1

    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 110: Checking Clutch Operation

    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 111: Setting The Folio Width

    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 112: Adjusting The Amount Of Slack In The Paper Of Drawer

    Function Description Adjusting the amount of slack in the paper of drawer 2 Description Adjusts the amount of slack in the paper when drawer 2 (upper special cassette, optional) is used. Purpose Used when paper from the upper special cassette is missing part of the image or has an irregular image at the leading edge, or when paper is Z-folded.
  • Page 113 Function Description Adjusting the amount of slack in the paper of drawer 4 Description Adjusts the amount of slack in the paper when drawer 4 (lower special cassette, optional) is used. Purpose Used when paper from the lower special cassette is missing part of the image or has an irregular image at the leading edge, or when paper is Z-folded.

  • Page 114: Checking The Switches On Drawer 2

    Function Description Checking the switches on drawer 2 Description Displays the status of the switches on drawer 2 (upper special cassette, optional). Purpose To check the operation of the switches in the upper special cassette (optional). Method 1. Press the start key. 2.

  • Page 115: Checking The Switches On Drawer 3

    Function Description Checking the switches on drawer 3 Description Displays the status of the switches on drawer 3 (middle special cassette, optional). Purpose To check the operation of the switches in the middle special cassette (optional). Method 1. Press the start key. 2.
  • Page 116 Function Description Checking the switches on drawer 4 Description Displays the status of the switches on drawer 4 (lower special cassette, optional). Purpose To check the operation of the switches in the lower special cassette (optional). Method 1. Press the start key. 2.

  • Page 117: Setting The Grid Control Voltage

    Function Description Checking the operation of the cassette drive motor Description With the special cassette (optional) attached, turns the cassette drive motor and paper feed clutch on. Purpose To check the drive system of the special cassette. Method Press the start key. The cassette drive motor is turned on. Completion Press the all clear/reset key.

  • Page 118: Setting The Developing Bias Control Voltage

    Function Description Setting the developing bias control voltage Description Sets the developing bias control voltage. Purpose Used when image contrast is incorrect. 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 119: Adjusting The Toner Control Voltage

    Function Description Adjusting the toner control voltage Description Changes the toner control voltage which was set automatically after replacement (initialization) of the imaging unit. Purpose Used to reset data after the engine PCB is replaced. Change the data when a background appears on the copy image. Method Press the start key.

  • Page 120: Initialization Of Iu

    Function Description Initialization of IU Description Initializes the IU. Purpose Performed when the IU is replaced or maintenance is performed. Method Press the start key. When the IU is initialized, the IU developing count value is reset and "TONER CONTROL :XXX OK" is displayed. * XXX: Value of toner control voltage Completion Press the all clear/reset key.

  • Page 121: Resetting The Fixing Problem Detection

    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 all clear/reset key. The current function is exited. Adjusting the ISU gain Description Displays the ISU gain data in real time.

  • Page 122: Adjusting Home Position With The Df

    Function Description Adjusting home position with the DF Description Adjusts the scanner home position when the sheet-through DF is used. Purpose Do not change the setting; otherwise, the light from the exposure lamp is blocked and image problems, including black lines appearing on the image, may occur.

  • Page 123: Adjusting The Magnification In The Main Scanning

    Function Description Adjusting the magnification in the main scanning direction with the original on the contact glass Adjustment See page 3-3-24. Adjusting the magnification in the main scanning direction with the original fed from the DF Adjustment See page 3-3-46. Adjusting the magnification in the auxiliary scanning direction with the original on the contact glass Adjustment...

  • Page 124: Adjusting Detection Of The Original Width

    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 125: Adjustment

    Function Description Adjusting the start position of image printing Adjustment See page 3-3-8. Adjusting the scanning start position of the original on the contact glass Adjustment See page 3-3-22. Adjusting the scanning start position of the original fed from the DF Adjustment See page 3-3-44.

  • Page 126: Adjusting The Centerline Of Drawer

    Function Description Adjusting the centerline of drawer 2 Description Adjusts the image centerline when paper is fed from the upper special cassette (optional). Purpose Used if the centerline of the original does not agree with that of the copy image when paper is fed from the upper special cassette. Method Press the start key.
  • Page 127 Function Description Adjusting the centerline of drawer 3 Description Adjusts the image centerline when paper is fed from the middle special cassette (optional). Purpose Used if the centerline of the original does not agree with that of the copy image when paper is fed from the middle special cassette. Method Press the start key.

  • Page 128: Adjusting The Centerline Of The Bypass

    Function Description Adjusting the centerline of the bypass Method See page 3-3-7. Adjusting the centerline of the original on the contact glass Method See page 3-3-21. Adjusting the DF original centerline Adjustment See page 3-3-43. Testing the keys Description Types out the keys on the operation panel in the specified order. Purpose To check the key function after replacing the operation unit.
  • Page 129 Function Description Order of pressing the keys (cont.) Note It is not necessary to press the PC on-line key if the destination is set to “OEM4”. Order of Display Indicator pressing Function key FUNCTION PC on-line key ONLINE PC on-line indicator Preset R/E key PRESET Zoom-down key...
  • Page 130 Function Description Order of (cont.) Display Indicator pressing One-touch key 1 ONE TOUCH 1 One-touch key 2 ONE TOUCH 2 One-touch key 3 ONE TOUCH 3 One-touch key 4 ONE TOUCH 4 One-touch key 5 ONE TOUCH 5 One-touch key 6 ONE TOUCH 6 One-touch key 7 ONE TOUCH 7...

  • Page 131: Lighting All The Indicators And Display On The Operation Panel

    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 132: Outputting Test Patterns

    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 A3/LED (11" × 17") or A4R/LET (8 "...

  • Page 133: Outputting Vtc Patterns

    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 Drawer 1...
  • Page 134 Function Description Setting the copy count for waste toner tank replacement Description Sets the number of sheets of paper to be handled by one waste toner tank. Purpose Used to change the time of replacing the waste toner tank. Method Press the start key.

  • Page 135: Setting The Copy Limit After The Waste Toner Tank

    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. Purpose To be set according to user request. Method Press the start key.

  • Page 136: Checking And Clearing The Scan Count

    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. Method 1. Press the start key. 2. Select either the single counter or the double counter using the cursor down key and press the start key.

  • Page 137: Checking And Clearing The Iu Developing Count

    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, the developing count is automatically cleared. Purpose Used to check the time for replacing maintenance parts. Method Press the start key.

  • Page 138: Entering The Service Telephone No

    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 139: Displaying The Engine Rom Version

    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 all clear/reset key.

  • Page 140: Settings

    Function Description Setting auto start Description Turns the auto start function on or off. Purpose No change from the factory default of 1 is necessary. To prevent prob- lems, change the setting to 2. Method Press the start key. The current setting is displayed. COPY AUTO START:1 1:ON 2:OFF...

  • Page 141: Setting Auto Preheat Time

    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 142: Setting Auto Shutoff Time

    Function Description Setting auto shutoff time Description Sets the time to enter shutoff (energy saving) mode after copying is completed. Purpose Used to save energy when the copier is not in frequent use, by decreasing the value. Method Press the start key. The current setting is displayed. Setting 1.

  • Page 143: Setting Operation Under The Toner Empty Condition

    Function Description Setting operation under the toner empty condition Description Switches between single and continuous copies under the toner empty condition. Purpose To be set by the user based on how frequently continuous or single copies are made. Method Press the start key. The current setting is displayed. T.E ACTION:1 1:STOP 2:CONT...

  • Page 144: Selecting If Multiple Copying Is Acceptable In

    Function Description Selecting if multiple copying is acceptable in memory copy mode Description Sets if multiple copying is acceptable for a machine with less than 10 MB of bitmap memory when the machine is used in memory copy mode and paper is fed from the DF.

  • Page 145: Initializing Memory

    Function Description Initializing memory 1 Description Writes the backup data of the main PCB to the engine PCB. Purpose Used after replacing the engine PCB. Method 1. Press the start key. The memory is initialized. 2. After initialization, “COMPLETED” is displayed. Completion Press the all clear/reset key.

  • Page 146: Setting The Copy Density Level

    Function Description Setting the copy density level Description Adjust the copy density. Purpose Do not change the setting; otherwise, the entire image may be made lighter or darker and resolution may be lowered. Method Press the start key. The current setting is displayed. Setting 1.

  • Page 147: Tion

    Function Description Initializing all data Description Initializes software switches for each destination and OEM, and all the data in SRAM. It is not necessary to carry out this function in the field. Purpose Used to initialize the all data. Method 1.

  • Page 148: Initializing Permanent Data

    Function Description Initializing permanent data Description Initializes data other than software switches for each destination and OEM; and settings, registrations, counts and machine data in SRAM. Purpose Used when upgrading firmware in the FLASH ROM (main PCB). Method 1. Press the start key. The destination code input display is shown. Default: USA: 181 Europe: 004 There is no operation necessary on this screen.

  • Page 149: Setting Factory Defaults

    Function Description Setting factory defaults Description Initializes data (other than software switches for each destination and OEM, and machine data in SRAM) to the factory defaults . Purpose Used to initialize the above data to the factory defaults. Method 1. Press the start key. Data initialization starts. To cancel data initializa- tion, press the all clear/reset key.

  • Page 150: Initializing The Main Pcb (Mfp)

    Function Description Initializing the main PCB (MFP) Description Writes backup data of the engine PCB to the main PCB after initializing the main PCB for each destination and OEM. Initializes the image memory at the same time. Purpose Used after replacing the main PCB. Method 1.

  • Page 151: Initializing The Administration Password

    Function Description Initializing the administration password Description Initializes the administration password to the factory default, 6482. Purpose Used if the administration password that was changed has been forgotten. Method 1. Press the start key. Initialization of the administration password starts. To cancel initialization, press the all clear/reset key.

  • Page 152: Setting A Telephone Line

    Function Description Setting a telephone line Description Setting the type of a telephone line. Purpose To be set when installing a machine. Method Press the start key. The current setting is displayed. REG LINE TYPE :1 1:DTMF 2:10 3:20 Setting 1.
  • Page 153 Function Description Setting remote diagnostic transmission Description Selects if remote diagnostic transmission is performed. Purpose To perform remote diagnostic transmission. Method Press the start key. The current setting is displayed. REMOTE DIAG:1 1:ON 2:OFF Setting 1. Enter 1 or 2 using the numeric keys to select if remote diagnostic transmission is performed.
  • Page 154 Function Description Setting the number of lines to be ignored when receiving a fax at 100% magnification Description Sets the maximum number of lines to be ignored if the received data volume exceeds the recording capacity when recording the data at 100% magnification.
  • Page 155 Function Description Setting the number of lines to be ignored when receiving a fax in auto reduction mode Description Sets the maximum number of lines to be ignored if the received data volume exceeds the recording capacity when the data is recorded in auto reduction mode.
  • Page 156 Function Description Setting the number of lines to be ignored when receiving a fax (A4R, letter) in auto reduction mode Description Sets the maximum number of lines to be ignored if the received data volume exceeds the recording capacity when the data is recorded in auto reduction mode onto A4R or letter-size paper under the conditions below.
  • Page 157 Function Description Setting how to proceed when memory becomes full during memory transmission Description Sets how to proceed when memory becomes full during memory transmis- sion. Purpose To select between user selection for whether to send only stored data or to cancel transmission user selection, and automatic transmission cancellation.
  • Page 158 Function Description Setting an alarm when reception is completed Description Selects if an alarm rings when reception is completed. Purpose To be set according to user request. Method Press the start key. The current setting is displayed. FINISH ALARM:1 1:ON 2:OFF Setting 1.
  • Page 159 Function Description Selecting if auto reduction in the auxiliary direction is performed Description Selects if auto reduction in the auxiliary direction is performed when receiving or copying a long document. Purpose Set to 2 when reception of a long document at 100% magnification is requested.
  • Page 160 Function Description Setting the date format Description Selects the date format on the respective reports and sender’s information record. Purpose To be set according to user request or respective local date notation customs. Method Press the start key. The current setting is displayed. DATE PATTERN:1 1:YMD 2:MDY 3:DMY Setting...
  • Page 161 Function Description Setting addition of an image to the report Description Selects if an image is added to the communication report. Purpose To be set according to user request. Method Press the start key. The current setting is displayed. ADD IMAGE:1 1:ON 2:OFF Setting...
  • Page 162 Function Description Setting the line-monitoring period Description Sets the period to monitor the line. Purpose According to user request, select whether or not to monitor the line via a speaker during image reception. Method Press the start key. The current setting is displayed. MONITOR PERIOD:1 1:END 2:DIS...
  • Page 163 Function Description Setting if the image scanning quality in fax mode is initialized Description Select if the resolution is to be initialized when fax operation is complete. Purpose To be set according to user request. Method Press the start key. The current setting is displayed. RESO.
  • Page 164 Function Description Setting the recording width for inch specifications Description Sets the facsimile reception processing method when 11" width fax paper is loaded on an inch-specification machine. Purpose Prevents image loss on both sides when receiving an A3 image. Method Press the start key.
  • Page 165 Function Description Setting the number of lines to be ignored in rotation mode Description Sets the maximum number of lines to be ignored when the received data volume exceeds capacity in rotation mode. When the number of the exceeded lines is below the setting, those lines are ignored and the remaining data only is received.
  • Page 166 Function Description Setting fax/copy priority mode Description Selects whether fax or copy mode is on standby after completing operation. Purpose To select the mode that is used more frequently by the user. Method Press the start key. The current setting is displayed. FAX/COPY:1 1:FAX 2:COPY...
  • Page 167 Function Description Setting the number of times of auto redialing Description Sets the number of times of auto redialing. Purpose Used to prevent an error code U00000 or error message “BUSY” from appearing frequently by increasing the setting. Method Press the start key. The current setting is displayed. Setting 1.
  • Page 168 Function Description Setting the number of times of DIS signal reception Description Sets the number of times to receive the DIS signal to once or twice. Purpose Used as one of the correction measures for transmission errors and other problems. Method Press the start key.
  • Page 169 Function Description Setting the waiting period to prevent echo problem at the sender Description Sets the period before a DCS signal is sent after a DIS is received. Purpose Used when problems due to echoes at the sender occur. Method Press the start key.
  • Page 170 Function Description Setting the communication starting speed Description Sets the initial communication speed when starting transmission. When the destination unit has V.34 capability, V.34 is selected for transmission, regardless of this setting. Purpose To be set when installing the machine. Method Press the start key.
  • Page 171 Function Description Setting the reception speed Description Sets the reception speed that the sender is informed of using the DIS or NSF signal. When the destination unit has V.34 capability, V.34 is selected, regardless of the setting. Purpose To be set when installing the machine. Method Press the start key.
  • Page 172 Function Description Setting no-ring reception when using the F network Description Sets if no-ring reception (a fax is received without the machine ringing) is in use. Purpose According to user request, select ring or no-ring reception when using the F network. Note that the F network is available only in Japan and no setting is necessary for other destinations.
  • Page 173 Function Description Setting if V.34 transmission is acceptable Description Select if transmission by V.34 is acceptable. Purpose Depending on the quality of the line to be used, change the setting to 2 if any problems occur during transmission. Method Press the start key. The current setting is displayed. Setting 1.
  • Page 174 Function Description Setting ECM reception Description Selects if ECM reception is available. Purpose To be set to OFF when reduction of transmission costs is of higher priority than image quality. Method Press the start key. The current setting is displayed. ECM RX:1 1:ON 2:OFF...
  • Page 175 Function Description Setting frequency of the CED signal Description Sets frequency of the CED signal. Purpose No change from the factory default is necessary. Method Press the start key. The current setting is displayed. CED FREQENCY:1 1:2100 2:1100 Setting 1. Enter 1 or 2 using the numeric keys to change the setting. Display Description 1: 2100...
  • Page 176 Function Description Setting the reception of short protocol transmission Description Selects if receiving or ignoring transmission using short protocol. Purpose If short protocol transmission is received when an auto switching device is attached to the machine, communication problems, including auto switching inability, sometimes occur.
  • Page 177 Function Description Setting of CNG detection times in the automatic FAX/TEL switching mode Description Sets the detection times of the CNG signal in the automatic FAX/TEL switching mode. Purpose Modification from the factory default setting is not needed. Method Press the start key. The current setting is displayed. NUMBER OF CNG (F/T):1 1:1 TIME 2:2 TIMES...
  • Page 178 Function Description Setting the T0 time-out time Description Sets the time before detecting a DIS after a dialing signal is sent. Purpose Depending on the quality of a exchange, or when the auto select function is selected at the destination unit, a line can be disconnected due to T0 time-out.
  • Page 179 Function Description Setting the continuous detection time for remote switching Description Sets the detection time when continuous detection is selected for remote switching. Purpose To change the setting if malfunction occurs due to external noise during remote switching. Method Press the start key. The current setting is displayed. Setting 1.
  • Page 180 Function Description Setting the T2 time-out time Description Sets the T2 time-out time. The T2 time-out time decides the following. • From CFR signal output to image data reception • From image data reception to the next signal reception • In ECM, from RNR signal output to the next signal reception Purpose Used as one of the correction measures for an error code U01114 and other problems.
  • Page 181 Function Description Setting the Ta time-out time Description In fax/telephone auto select mode, sets the time during which rings to call an operator continue through the connected telephone or speaker of the unit after receiving a call as a fax machine (see the diagram below). A fax signal is received within the Ta set time, or fax mode is selected automati- cally when the time elapses.
  • Page 182 Function Description Setting the Tb time-out time Description In fax/telephone auto select mode, sets the time to start rings to call an operator via the connected telephone or by the unit speaker after receiving a call as a fax machine (see the diagram below). Figure 3-2-5 Tb time-out time Purpose In fax/telephone auto select mode, change the setting when fax reception...
  • Page 183 Function Description Setting the Tc time-out time Description In TAD mode, set the time to check if there are any triggers to shift to fax reception after a connected telephone receives a call. Only the telephone function is available if shifting is not made within the set Tb time. Purpose In TAD mode, change the setting when fax reception is unsuccessful or a telephone fails to receive a call.
  • Page 184 Function Description Setting the modem output level Description Sets the modem output level. Purpose To be set when installing the machine. Method Press the start key. The current setting is displayed as a binary number. SGL LEVEL MODEM XXXX XXXX Output level setting Bit 1 1: –0.25 dB...
  • Page 185 Function Description Adjusting modem output level Description Adjusts the modem output level. Purpose No change is necessary from the factory default. Method Press the start key. The current setting is displayed. Setting 1. Change the setting using the numeric keys. Description Setting range Modem sending level...
  • Page 186 Function Description Setting DTMF (high-frequency group) output level Description Sets the output level of the high-frequency tones of a push-button dial. Purpose Used if problems occur when sending a signal with a push-button dial. Method Press the start key. The current setting is displayed. Setting 1.
  • Page 187 Function Description Adjusting the DTMF (high-frequency group) output level Description Adjusts the output level for the high-frequency tone of a push-button dial. Purpose No change is necessary from the factory default. Method Press the start key. The current setting is displayed. Setting 1.
  • Page 188 Function Description Setting the connection to PBX/PSTN Description Selects if a fax is to be connected to either a PBX or public switched telephone network. Purpose To be set when installing the machine. Method Press the start key. The current setting is displayed. EXCHANGE:1 1:PSTN 2:PBX...
  • Page 189 Function Description Setting the busy tone detection Description When a fax signal is sent, sets whether the line is disconnected immedi- ately after a busy tone is detected, or the busy tone is not detected and the line remains connected until T0 time-out time. Purpose Fax transmission may fail due to incorrect busy tone detection.
  • Page 190 Function Description Adjusting the ratio of make-to-break of 10-PPS dial pulse Description Adjusts the ratio of make-to-break (rate of make in pulse cycle) of 10-PPS dial pulse. Purpose Change the setting if 10-PPS dial pulse transmission problems occur. Method Press the start key. The current setting is displayed. Setting 1.
  • Page 191 Function Description Outputting the setting list Description Outputs a list of software switches, self telephone number, confidential box ID’s 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 192 Function Description Outputting the action list Description Outputs a list of error history, transmission line details, versions 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 193 Function Description Outputting the monitor list Description Outputs a list of destination codes, OEM codes, counts, ROM versions, transmission speeds, resolutions and minimum transmission times. 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 194 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. Performing memory tests Description Performs tests for SRAM and DRAM (image memory and bitmap...
  • Page 195 Function Description Performing optional memory tests Description Performs tests for optional memories (one image memory and two bitmap memories). Purpose Used to check if reading and writing are performed correctly in respective optional memories installed. Method Press the start key. The test is performed and the result is displayed as follows.
  • Page 196 CONTENTS 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 the paper feed pulley ......3-3-3 (2) Detaching and refitting the bypass paper feed pulley ....
  • Page 197 (4) Adjusting the copy center line when the sheet-through DF is used ..................3-3-43 (5) Adjusting the scanning start position when the sheet-through DF is used ................. 3-3-44 (6) Adjusting the scanning end position when the sheet through DF is used ................. 3-3-45 (7) Adjusting magnification .............

  • Page 198: 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 199: 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 all clear/reset key. .

  • Page 200: Paper Feed Section

    3-3-2 Paper feed section (1) Detaching and refitting the paper feed pulley Clean or replace the paper feed pulley as follows. Procedure 1. Open the front cover and remove the imaging unit. 2. Detach the right, left and front covers. 3.

  • Page 201: Detaching And Refitting The Bypass Paper Feed Pulley

    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, and pull the pulley off the paper feed shaft. When refitting the pulley, take care to ensure correct orientation. 11.
  • Page 202 2. Open the paper conveying assembly and remove the drawer. 3. Remove the screw and detach the strap from the paper conveying assembly. 4. Remove the E-ring and pin on the machine front holding the paper conveying assem- bly and detach the assembly from the copier. To refit the assembly, insert the pin into the D-shaped cutout in the assembly.
  • Page 203 7. Remove the screw holding each of the bypass lift cam and the bypass paper feed pulley. 8. Remove the two E-rings, the bushing, the bypass lift cam, the two bypass paper feed collars and the bypass paper feed pulley from the bypass shaft. Bypass shaft E-ring Bypass lift cam...

  • Page 204: Adjusting The Centerline Of Printing

    (3) 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. 126 No. 120 (p. 3-3-21) Caution: •...

  • Page 205: Adjusting The Start Position Of Image Printing

    (4) Adjusting the start position of image printing Perform the following adjustment when changing the leading edge margin. No. 106 No. 111 No. 110 (p. 3-3-24) (p. 3-3-22) Caution: When performing this adjustment, all the above maintenance items must be executed in the order indicated.

  • Page 206: Adjusting The End Position Of Image Printing

    (5) Adjusting the end position of image printing Perform the following adjustment if the trailing edge margin is not within the specified range. No. 110 No. 106 No. 111 No. 116 No. 115 (p. 3-3-8) (p. 3-3-24) (p. 3-3-22) (p. 3-3-23) Caution: When performing this adjustment, all the above maintenance items must be executed in the order indicated.

  • Page 207: 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 208: 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 209: Refitting The Scanner Wires

    Wire retainer Scanner wire Round terminal Scanner wire spring Round terminal Screws ISU wire Scanner Mirror frame Figure 3-3-13 Detaching the scanner wire (2-2) Refitting the scanner wires Refitting requires the following tool: Scanner wire drum clip (P/N 35968110) Procedure At the machine rear: 1.
  • Page 210 3. Remove the four screws holding the scanner front and rear rails, and the rails. 4. Remove the E-rings and the bearings holding the scanner drive shaft at the front and rear. 5. Remove the two screws holding the scanner wire drum and pull the scanner drive shaft off the scanner wire drum.
  • Page 211 10. Refit the scanner wire drum and the scanner drive shaft to the machine and secure them with the E-rings. 11. Refit the scanner front and rear rails. 12. Remove the scanner wire drum clip. 13. Place the mirror frame on the scanner rails. 14.
  • Page 212 22. Hold the scanner wires with the wire retainers and tighten the screws. Do not tighten completely. 23. Insert two positioning screws M3 × 16 (P/N B1303160) in the positioning holes in the center of each of the scanner front and rear rails (Figure 3-3-18). Machine rear Wire retainer Positioning screws...
  • Page 213 24. Move the mirror frame until it touches the inner positioning screws (Figure 3-3-18 1). 25. 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 214: 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. Remove the right, left, front and tray covers. 2.

  • Page 215: 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 copy image. If squareness is not obtained, adjust the installation of the ISU.

  • Page 216: Adjusting The Installation Of The Isu

    (4-2) Adjusting the installation of the ISU Caution: Make a test copy after adjusting the installation of the ISU. If a background appears on the copy image, proceed to (5) Adjusting the angle of mirror 3. Procedure Start Enter maintenance mode. Enter 400 with the numeric keys Original Copy...

  • Page 217: Adjusting The Angle Of Mirror 3

    (5) Adjusting the angle of mirror 3 Make the following adjustment if a background appears on the copy image after replacing the scanner wires or mirror 3. Procedure Start Make a test copy using a white Turn the adjusting screw using sheet of original at exp.

  • Page 218: Adjusting The Scanning Centerline Of The Original On The Contact Glass

    (6) 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. 126 (p. 3-3-7) Caution: • When performing this adjustment, all the above maintenance items must be executed in the order indicated.

  • Page 219: Adjusting The Scanning Start Position Of The Original On The Contact Glass

    (7) 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. 116 No.

  • Page 220: Adjusting The Scanning End Position Of The Original On The Contact Glass

    (8) 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. 111 No.

  • Page 221: Adjusting The Magnification

    (9) 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. 104 No. 111 No. 116 (p. 3-3-8) (p. 3-3-9) No. 106 (p. 3-3-22) (p. 3-3-23) Caution: When performing this adjustment, all the above maintenance items must be executed in the order indicated.

  • Page 222: Adjusting The Right And Left Margins

    (10) 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 223: 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 clean- ing blade. Precautions • Avoid direct sunlight and strong lighting when detaching and refitting the drum. •...
  • Page 224 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 3-3-32 Detaching the drum...
  • Page 225 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 226: 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 227: 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. Procedure 1. Open the right side cover. 2. Remove the four screws and the transfer wire holding the transfer roller assembly, and then the assembly.

  • Page 228: 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. Turn the main switch off. 2 . Detach the right, left, front, tray and rear covers. Caution: If the memory board (optional) is attached, remove it before detaching the rear cover.
  • Page 229 5. Remove the 3-pin connector of safety switch 3, the 2-pin connector of the fixing unit thermistor, the 3-pin connector of the eject switch, and the two 1-pin connectors of the fixing heater. 6. Remove the four screws holding the fixing unit on the machine right, and then remove the unit from the machine.

  • Page 230: Replacing The Fixing Heater

    (2) Replacing the fixing heater Take the following steps when replacing the fixing heater. Procedure 1. Remove the fixing unit felt. 2. Remove the two screws holding the fixing unit cover, and then the cover. 3. Remove the 1-pin connector of the fixing heater from fixing unit thermostat 1. 4.

  • Page 231: 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 232: Replacing Fixing Unit Thermostats 1 And 2

    (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 233: Detaching And Refitting The Heat And Press Rollers And The Heat Roller Separation Claws

    (5) Detaching and refitting the heat and press rollers and the heat roller separa- tion claws Take the following steps when cleaning or replacing the heat and press rollers and the heat roller separation claws. Procedure 1. Remove the fixing heater (see page 3-3-33). 2.
  • Page 234 Detaching the press roller 7. Remove the front and rear bearings and the press roller. Bearing Press roller Bearing Figure 3-3-44 Detaching the press roller Detaching the heat roller separation claws 8. Detach the separation claw springs from the catches to remove all the four heat roller separation claws.

  • Page 235: Detaching And Refitting The Df Forwarding Pulley

    3-3-7 DF (1) Detaching and refitting the DF forwarding pulley Clean or replace the DF forwarding pulley as follows. Procedure 1. Open the DF cover. 2. Remove the two screws holding the DF cover and then the cover. 3. Remove the E-ring and then the DF forwarding pulley from the forwarding pulley shaft.

  • Page 236: Detaching And Refitting The Df Original Feed Pulley

    (2) Detaching and refitting the DF original feed pulley Clean or replace the DF original feed pulley as follows. Procedure 1. Open the DF cover. 2. Remove the two screws holding the DF cover and then the cover. 3. Remove the screw and DF rear cover (see Figure 3-3-48). 4.

  • Page 237: Detaching And Refitting The Df Separation Pulley

    (3) Detaching and refitting the DF separation pulley Clean or replace the DF separation pulley as follows. Procedure 1. Open the DF cover. 2. Remove the two screws holding the DF cover and then the cover. 3. Remove the screw holding the DF rear cover and then the cover. 4.
  • Page 238 7. Remove the stop ring and then the housing coupling. 8. Remove the front and rear pins and then the DF upper housing. 9. Remove the two screws and then the DF original feed guide. DF original feed guide DF lower housing Stop ring DF upper housing Housing coupling...
  • Page 239 10. Remove the two stop rings and bushings from the front and rear of the separation pulley shaft. 11. Remove the E-ring and pin and detach the DF separation pulley from the shaft. 12. Clean or replace the DF separation pulley. 13.

  • Page 240: Adjusting The Copy Center Line When The Sheet-Through Df Is Used

    (4) Adjusting the copy center line when the sheet-through DF is used Perform the following adjustment if there is a regular error between the centers of the original and copy image when the sheet-through DF is used. No. 120 No. 127 (p.

  • Page 241: Adjusting The Scanning Start Position When The Sheet-Through Df Is Used

    (5) Adjusting the scanning start position when the sheet-through DF is used Perform the following adjustment if there is a regular error between the leading edges of the original and the copy image when the sheet-through DF is used. No. 110 No.

  • Page 242: Adjusting The Scanning End Position When The Sheet Through Df Is Used

    (6) Adjusting the scanning end position when the sheet through DF is used Perform the following adjustment if there is a regular error between the trailing edges of the original and copy image when the sheet-through DF is used. No. 110 No.

  • Page 243: Adjusting Magnification

    (7) Adjusting magnification Perform the following adjustment if magnification is not correct when the sheet-through DF is used. Procedure Main scanning direction Start Enter maintenance mode. Enter 400 with the numeric keys Auxiliary and press the start key. scanning direction Press the start key.

  • Page 244: Others

    3-3-8 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 rear cover (two screws). Caution: If the memory board (optional) is attached, remove it before detaching the rear cover.
  • Page 245 CONTENTS 3-4 PCB Initial Settings 3-4-1 Replacing the main PCB ..............3-4-1 3-4-2 Upgrading the firmware in the FLASH ROM (main PCB) ....3-4-4 3-4-3 Replacing the engine PCB ..............3-4-7 3-4-4 Adjustment-free variable resisters (VR) ..........3-4-8 3-4-5 Updating the firmware on the printer board ........3-4-9 1-1-23...

  • Page 246: Replacing The Main Pcb

    3-4-1 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 IC1 (P/N 2AA2935X) Main ROM IC2 (P/N 2AA2936X) Important: Be sure to use the latest versions (the one with the largest number for the last digit X of the part number) of main ROMs IC 1 and 2.
  • Page 247 7. Remove the blanking cover from 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 248 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 function No. 604. 16. Execute function No. 000 to output the own-status report. 17.

  • Page 249: Upgrading The Firmware In The Flash Rom (Main Pcb)

    3-4-2 Upgrading the firmware in the FLASH ROM (main PCB) Perform the steps below when upgrading the firmware in the FLASH ROM (main PCB). Firmware upgrading requires the following tools: Flash tool assembly (P/N 35968010) Main ROM IC1 (P/N 2AA2935X) Main ROM IC2 (P/N 2AA2936X) Important: Be sure to use the latest versions (the one with the largest number for the last digit X of the part number) of main ROMs IC 1 and 2.
  • Page 250 6. Remove the blanking cover from the rear of the copier and insert the flash tool assembly into the top slot. Flash tool assembly Blanking cover Figure 3-4-4 7. Insert the power plug and turn the main switch on. FLASH PUSH START 8.
  • Page 251 11. Remove the flash tool assembly and refit the blanking cover. 12. Turn the main switch on. 13. Enter the maintenance mode. 14. Execute function No. 602. 15. Execute function No. 390. 16. Execute function No. 000 to output the own-status report. 17.

  • Page 252: Replacing The Engine Pcb

    3-4-3 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 de- tected or the toner sensor output voltage has not reached the no-copying level. Reset, if necessary.

  • Page 253: Adjustment-Free Variable Resisters (Vr)

    3-4-4 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 transfer PCB: VR101, VR201, VR301, VR 401 3-4-8...

  • Page 254: Updating The Firmware On The Printer Board

    3-4-5 Updating the firmware on the printer board Perform the steps below when updating the firmware on the printer board. Firmware updating requires the following tools: PC (DOS) Parallel cable File to be downloaded Firmware Procedure Important: Copy the file to be downloaded and firmware to the PC hard disk before starting this procedure.
  • Page 255 3. Remove the eight screws securing the printer board inner cover. Printer board inner cover Figure 3-4-6 4. Connect the PC to the printer board using the parallel cable. 5. Connect the power plug to the wall outlet. 6. Turn the copier main switch on and wait until the machine stabilizes. When the main switch is turned on, the LED on the printer board lights orange.
  • Page 256 7. At the DOS prompt on the PC, enter “copy dnload/b lpt1:” using the PC keyboard. 8 Press the return key. 9. When the LED flashes green, turn the copier main switch off. 10. Turn the copier main switch on and wait until the flashing green LED stays on. 11.

  • Page 257: Self-Diagnosis

    CONTENTS 3-5 Self-Diagnosis 3-5-1 Self-diagnosis ..................3-5-1 (1) Self-diagnostic function ............... 3-5-1 (2) Error code ..................3-5-5 1-1-25...

  • Page 258: Call For Service

    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 Operation unit PCB com- The connec- Check the connection of con- munication problem tors of the nectors of the wires between There is a communication wires between the main PCB and operation problem between the main the main PCB PCB.
  • Page 260 Remarks Code Contents Check procedures/ Causes corrective measures Exposure lamp problem The connec- Check the connection of the The value of the ASIC ad- tors of the connectors of the exposure dress AGCHMAX is 30 or exposure lamp. less when scanning the lamp make white reference data.
  • 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 (2) Error code The error codes are listed on the transmission report, activity report and action list. The codes consist of an error code indication “U” followed by a 5-digit number. The upper three of the five digits indicate general classification of the error and its cause, while the lower two indicate the detailed classification.
  • Page 263 Table of general classification Error code Description U000 No response or busy after the set number of redials. U001 Transmission was interrupted by a press of the stop/clear key. U002 Reception was interrupted by a press of the stop/clear key. U003 Recording paper on the destination unit has run out during transmis- sion.
  • Page 264 Error code Description U022 The host center tried to specify the relay but failed because the specified telephone number was not registered at the relay center. Or, the relay center received a request for relay broadcast, but failed to broadcast because the specified telephone number was not registered at the relay center.
  • Page 265 Error code Description U045 Encrypted reception was interrupted because of a mismatch in encryption keys. U050 In total page numbering mode, set number of pages and number of pages actually sent did not agree. U051 Password check transmission was interrupted because the author- ized ID or telephone number did not agree.
  • Page 266 Table of detailed classification: Errors corresponding to error code U004XX (interrupted phase B) Error code Description U00420 Relay request was received from the host center but interrupted because of a mismatch in authorized ID or telephone number. U00430 Confidential or reverse polling request was received but interrupted because of a mismatch in authorized ID or telephone number on the transmitting unit.
  • Page 267 Table of detailed classification: Errors corresponding to error code U006XX (problem on the unit) Error code Description U00600 DF cover is open. U00601 Document jam or the document length exceeds the maximum. U00602 Image scanning section problem. U00603 No document feed. U00610 Right side cover is open.
  • Page 268 Table of detailed classification: Errors corresponding to error code U008XX (page transmission error) Error code Description U00800 Page transmission error occurred because of reception of a RTN or PIN signal. U00810 Page transmission error reoccurred after retry of transmission in ECM mode.
  • Page 269 Table of detailed classification: Errors corresponding to error code U010XX (G3 transmission) Error code Description U01000 FTT signal was received for a set number of times after TCF signal transmission at 2400 bps. Or, RTN signal was received in response to a Q signal (excluding EOP) after transmission at 2400 bps.
  • Page 270 Error code Description U01021 No relevant signal was received after transmission of an EOR.Q signal, and the preset number of command retransfers was ex- ceeded (ECM). U01022 No relevant signal was received after transmission of an RR signal, and the preset number of command retransfers was exceeded (ECM).
  • Page 271 Error code Description U01047 A DCN or other inappropriate signal was received after transmission of an EOP signal. U01048 A DCN signal was received after transmission of a PRI-EOP signal. U01049 A DCN signal was received after transmission of a CNC signal (between units of our make).
  • Page 272 Table of detailed classification: Errors corresponding to error code U011XX (G3 reception) Error code Description U01100 Function of the unit differs from that indicated by a DCS signal. U01101 Function of the unit (excl. communication mode select) differs from that indicated by an NSS signal. U01102 DTC (NSC) signal was received when no transmission data was in the unit.
  • Page 273 Error code Description U01141 A DCN signal was received after transmission of a DTC signal. U01142 A DCN signal was received after transmission of a DCS or NSS signal. U01143 A DCN signal was received after transmission of an FTT signal. U01144 A DCN signal was received after transmission of a CFR signal.
  • Page 274 Table of detailed classification: Errors corresponding to error code U017XX (V.34 transmission) Error code Description U01700 A communication error occurred in phase 2 (line probing). U01720 A communication error occurred in phase 4 (modem parameter exchange). U01721 Operation was interrupted due to the absence of a common communication speed between units.
  • Page 275 CONTENTS 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..............3-6-5 (5) A white line appears longitudinally..........3-6-6 (6) A black line appears longitudinally.
  • Page 276 (5) Operation unit PCB ..............3-6-32 (6) NCU PCB .................. 3-6-33 3-6-4 Electrical problems ................3-6-35 • Main body ..................3-6-35 (1) The machine does not operate when the main switch is turned on................... 3-6-35 (2) The drive motor does not operate..........3-6-35 (3) The scanner motor does not rotate.
  • Page 277 (5) Multiple sheets of paper are fed at one time......3-6-44 (6) Paper jams................3-6-44 (7) Toner drops on the paper conveying path......... 3-6-45 (8) Abnormal noise is heard............3-6-45 • DF ....................3-6-46 (1) No original feed................. 3-6-46 (2) An original jams.

  • Page 278: 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 279: Paper Creases

    (13) Paper creases. (14) Offset occurs. (15) Image is partly missing. See page 3-6-10. See page 3-6-10. 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 3-6-11.
  • Page 280 (1) No image appears Causes (entirely white). 1. No transfer charging. 2. No developing bias voltage is output. Causes Check procedures/corrective measures 1. No transfer charging. A. Broken transfer wire. Repair or replace the wire. B. Poor contact in the high-voltage Check for continuity across the terminals.
  • Page 281 (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 282 (3) Image is too light. Causes 1. Misadjusted exposure level. 2. Insufficient toner. 3. Deteriorated developer. 4. Dirty or deteriorated drum. Causes Check procedures/corrective measures 1. Misadjusted exposure level. Adjust exposure level (see page 3-2-49). 2. Insufficient toner. If the display shows the message requesting toner replenishment, replace the cartridge.
  • Page 283 (5) A white line appears Causes longitudinally. 1. Dirty or flawed charger wire. 2. Foreign matter in the imaging unit. 3. Flawed drum. Causes Check procedures/corrective measures 1. Dirty or flawed charger wire. Clean the charger wire or, if it is flawed, replace it.
  • Page 284 (7) A black line appears Causes laterally. 1. Flawed drum. 2. Dirty developing section in the imaging unit. Causes Check procedures/corrective measures 1. Flawed drum. Replace the drum (see page 3-3-26). 2. Dirty developing section in the Clean the developing section in the imaging imaging unit.
  • Page 285 (9) Black dots appear on Causes the image. 1. Dirty or flawed drum. 2. Deformed or worn cleaning blade. Causes Check procedures/corrective measures 1. Dirty or flawed drum. Clean the drum or, if it is flawed, replace it (see page 3-3-26). 2.
  • Page 286 (11) The leading edge of Causes the image is consist- 1. Misadjusted scanning start position for the original ently misaligned with on the contact glass. the original. Causes Check procedures/corrective measures 1. Misadjusted scanning start Readjust the scanning start position for the position for the original on the original on the contact glass (see page 3-3- contact glass.
  • Page 287 (13) Paper creases. Causes 1. Paper curled. 2. Paper damp. Causes Check procedures/corrective measures 1. Paper curled. Check the paper storage conditions. 2. Paper damp. Check the paper storage conditions. (14) Offset occurs. Causes 1. Defective cleaning blade. Causes Check procedures/corrective measures 1.
  • Page 288 (15) Image is partly missing. Causes 1. Paper damp. 2. Paper creased. 3. Drum condensation. 4. Flawed drum. Causes Check procedures/corrective measures 1. Paper damp. Check the paper storage conditions. 2. Paper creased. Replace the paper. 3. Drum condensation. Clean the drum (see page 3-3-29). 4.
  • Page 289 (17) Image is out of focus. Causes 1. Defective image scanning unit. Causes Check procedures/corrective measures 1. Defective image scanning unit. Replace the image scanning unit. (18) Image center does not Causes align with the original 1. Misadjusted image center line. center.
  • Page 290 (19) Image is not square. Causes 1. Squareness adjusted (laser scanner unit positioned) incorrectly. 2. Image scanning unit positioned incorrectly. Causes Check procedures/corrective measures 1. Squareness adjusted (laser Adjust the squareness (installation position scanner unit positioned) incor- of the laser scanner unit; see page 3-3-18). rectly.
  • Page 291 (20) There is a regular error Causes between the centers of 1. Misadjusted DF center line. the original and copy image when using the sheet-through DF. Causes Check procedures/corrective measures 1. Misadjusted DF center line. Readjust the DF center line when using the sheet-through DF (see page 3-3-43).

  • Page 292: Paper Misfeeds

    3-6-2 Paper misfeeds • Main body Problem Causes/check procedures Corrective measures A piece of paper torn from copy Check visually and remove it, if A paper jam in paper is caught around the reg- any. the paper feed istration switch. or conveying Defective registration switch.
  • Page 293 Problem Causes/check procedures Corrective measures Check if the paper feed clutch Check and repair if necessary. A paper jam in malfunctions. the drawer is Electrical problem with the pa- See page 3-6-37. indicated dur- per feed clutch. ing copying. Check if the bypass paper feed Check and replace the de- A paper jam in pulley is deformed.
  • Page 294 Problem Causes/check procedures Corrective measures Check if the heat roller separa- Clean or replace the heat roller A paper jam in tion claws are extremely dirty or separation claws (see page the eject sec- deformed. 3-3-36). tion is indi- Check if the upper eject pulley Check and repair if necessary.

  • Page 295: Initialization Ends

    • DF Problem Causes/check procedures Corrective measures A piece of paper torn from an Check visually and remove it, if An original original is caught around the DF any. jams in the DF timing switch. simultane- Defective DF timing switch. With 5 V DC present at ously when CN13-17 on the engine PCB of...

  • Page 296: Pcb Terminal Voltages

    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 297 Terminals (CN) Voltage Remarks 24 V DC 24 V DC supply for EPCB, output 24 V DC 24 V DC supply, input 24 V DC 24 V DC supply for EPCB, output 24 V DC 24 V DC supply for EPCB, output 5 V DC 5 V DC supply for EPCB, output 5 V DC...

  • Page 298: Main Pcb

    (2) Main PCB L1007 C1514 C1510 C1301 R1501 R1502 R1025 R1026 R1337 C1108 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 299 Terminals (CN) Voltage Remarks 5/0 V DC (pulse) EPCB control signal, input (SVCLK) 5/0 V DC (pulse) EPCB control signal, input (SVD0) 5/0 V DC (pulse) EPCB control signal, input (SVD1) 5/0 V DC (pulse) EPCB control signal, input (SVD2) 5/0 V DC (pulse) EPCB control signal, input (SVD3) 5/0 V DC (pulse)
  • Page 300 Terminals (CN) Voltage Remarks 1-12, 14 NCUPCB analog signal, input (MODTXD) 2-19, 20 5/0 V DC (pulse) NCUPCB control signal, output (DCCUT L)* NCUPCB control signal, output (EARTM L)* 2-19, 20 5/0 V DC (pulse) NCUPCB control signal, output (KMUTE)* 2-10 2-19, 20 5/0 V DC (pulse)

  • Page 301: Engine Pcb

    (3) Engine PCB CN14 CN15 CN16 IC35 8HD185 • • • • • • • • • • • • • • • • • • • • CN19 • • • • • • • • • • • •...
  • Page 302 Terminals (CN) Voltage Remarks 24 V DC 24 V DC supply, input 24 V DC 24 V DC supply for PSPCB, output 24 V DC 24 V DC supply, input 24 V DC 24 V DC supply, input 21-1 5 V DC 5 V DC supply, input 21-1 5 V DC...
  • Page 303 Terminals (CN) Voltage Remarks 21-1 5/0 V DC (pulse) BYPPSSW (1) return signal, input 21-1 5/0 V DC (pulse) BYPPSSW (2) return signal, input 21-1 5/0 V DC (pulse) BYPPSSW (3) return signal, input 24 V DC 24 V DC supply for HVTPCB, output 0/17.7 V DC HVTPCB (MC) on/off, output 0/15.7 V DC...
  • Page 304 Terminals (CN) Voltage Remarks 12-1 12-5, 6 24 V DC 24 V DC supply for MOTPCB, output 12-2 12-5, 6 24 V DC 24 V DC supply for MOTPCB, output 12-3 12-4 5 V DC 5 V DC supply for MOTPCB, output 12-7 12-5, 6 5/0 V DC (pulse)
  • Page 305 Terminals (CN) Voltage Remarks 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 16-12 5/0 V DC (pulse) CCDPCB control signal, output [S/H (SP1)] 16-13 16-14 5/0 V DC (pulse) CCDPCB control signal, output (CP1)
  • Page 306 Terminals (CN) Voltage Remarks 18-27 18-22 0/5 V DC STFSW2* on/off, input 18-28 18-22 0/5 V DC STFSW3* on/off, input 18-29 18-22 5/0 V DC (pulse) STMOTPCB* STDM drive pulse signal, output 19-1 21-1 5/0 V DC (pulse) MPCB control signal, output (SVCLK) 19-3 21-1 5/0 V DC (pulse)

  • Page 307: Motor Pcb

    (4) Motor PCB E C B 494VO BD 3 TR1 R1 E C B LS07 LS04 • • STK8711BMK4 J12 CON1 3592814 REV : 1 3-6-30...
  • Page 308 Terminals (CN) Voltage Remarks 5/0 V DC DFM/SM selection signal, input (MOTSEL) Motor control voltage, input (SMREF) 5/0 V DC (pulse) Motor coil energization pulse signal, input (MOT _B) 5/0 V DC (pulse) Motor coil energization pulse signal, input (MOT B) 5/0 V DC (pulse) Motor coil energization pulse signal, input (MOT _A)

  • Page 309: Operation Unit Pcb

    (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 310: Ncu Pcb

    (6) NCU PCB 120 V specifications .PC1 – MCN3 MCN2 MCN1 Vout+ Vout– 230 V specifications MCN1 MCN2 3-6-33...
  • Page 311 Terminals (CN) Voltage Remarks 1-19, 20 5/0 V DC (pulse) MPCB control signal, output (ONHOOK1 L) 1-19, 20 5/0 V DC (pulse) MPCB control signal, output (ONHOOK2 L) 1-19, 20 5/0 V DC (pulse) MPCB control signal, input (TELSEL L)* MPCB control signal, input (KCMCNT)* 1-19, 20 5/0 V DC (pulse)

  • Page 312: Electrical Problems

    3-6-4 Electrical problems • Main body Problem Causes Check procedures/corrective measures No electricity at the Measure the input voltage. The machine power outlet. does not oper- The power cord is Check the contact between the power plug ate when the not plugged in and the outlet.

  • Page 313: Cooling Fan Motor 1 Does Not Rotate

    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 con- terminals.
  • Page 314 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 315: The Exposure Lamp Does Not Turn Off

    Problem Causes Check procedures/corrective measures 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 oper- registration clutch terminals.

  • Page 316: Triggered; C60)

    Problem Causes Check procedures/corrective measures (13) Broken wire in the Check for continuity across the heater. If The fixing fixing heater. none, replace the fixing heater (see page heater does 3-3-33). not turn on Fixing unit thermo- Check for continuity across each thermostat. (C60).
  • Page 317 Problem Causes Check procedures/corrective measures (16) Broken transfer See page 3-6-3. Transfer wire. charging is not Poor contact in the performed high-voltage trans- (C52). former PCB con- nector terminals. Defective main PCB. Defective engine PCB. Defective high- voltage transformer PCB. (17) Poor contact in the Check the developing bias wire.
  • Page 318 Problem Causes Check procedures/corrective measures (19) Original is not Check the original and set it correctly. The original placed correctly. size is not Poor contact in the Check for continuity across the connector detected cor- original size switch terminals. If none, replace them. rectly.

  • Page 319: Displayed When It Is Already Closed

    Problem Causes Check procedures/corrective measures (23) A piece of paper Check and remove if any. A paper jam is torn from copy pa- indicated on per is caught the message around the regis- display imme- tration switch or diately after eject switch.
  • Page 320 • DF Problem Causes Check procedures/corrective measures Broken DF motor Check for continuity across the coils. If none, The DF motor coil. replace the DF motor. does not oper- The connector ter- Check for continuity across the connector ate. minals of the DF terminals of the DF motor.

  • Page 321: Mechanical Problems

    3-6-5 Mechanical problems • Main body Problem Causes/check procedures Corrective measures Check if the paper feed pulley If dirty, clean with isopropyl al- No primary or bypass paper feed pulley is cohol. paper feed. dirty with paper powder. Check if the paper feed pulley Replace any deformed or worn or bypass paper feed pulley is pulley (see page 3-3-3, 4).
  • Page 322 Problem Causes/check procedures Corrective measures Check if the contact between If there is any 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 323 • DF Problem Causes/check procedures Corrective measures The surfaces of the DF forward- Clean with isopropyl alcohol if No original ing pulley or DF separation pul- they are dirty. feed. ley are dirty with paper powder. An original outside the specifi- Use an original conforming to An original cations is used.
  • Page 324 CONTENTS 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 Power source PCB (120 V area) ..............3-7-6 Power source PCB (230 V area) ..............
  • Page 325 Engine PCB 9/12 ..................3-7-45 Engine PCB 10/12 ..................3-7-46 Engine PCB 11/12 ..................3-7-47 Engine PCB 12/12 ..................3-7-48 NCU PCB (120 V area) ................3-7-49 NCU PCB (230 V area) ................3-7-50 Operation unit PCB ..................3-7-51 Connection diagram ..................3-7-52 1-1-32...
  • Page 326 Timing chart No. 1 From main switch on to stabilization MSW: ON Secondary stabilization 165°C/329°F fixing temperature Primary stabilization 130°C/266°F fixing temperature 1.5 s CN1-4 DB REM CN8-9 100 ms 100 ms CN2-1 5 – 15 s Full speed Half CFM1 CN8-17 30 –...
  • Page 327 Timing chart No. 2 Printing the image onto a sheet of paper fed from the drawer or bypass table START KEY Chatter removal 100 ms 20 ms × 4 50 ms CN17-3 MSYNC CN17-1 CN2-2 100 ms At least 500 ms and after the laser diode has been turned on. DB REM CN8-9 50 ms ×...
  • Page 328 Timing chart No. 3 Initial operation of the DF and scanner MSW: ON Fwd. rotation CN12-7– CN12-12 992 P Rev. rotation 40 ms 1000 P Fwd. rotation CN12-7– CN12-12 800 P Rev. rotation 40 ms CN14-1– CN14-2 1000 ms SHPSW CN13-7 3-7-3 PointSource Ai1810F...
  • Page 329 Timing chart No. 4 Scanning operation 1: original placed on the contact glass SCAN signal 560 – Fwd. SM CN12-7 – 800 P 992 P CN12-12 Rev. 100 ms 40 ms 2500 P EL CN14-1 CN14-2 20 ms 50 ms 120 ms SVSYNC During scanning: 446 –...
  • Page 330 Timing chart No. 5 Scanning operation 2: original placed on the DF Scan signal 560 – Fwd. rotation 800 P SM CN12-7– 992 P CN12-12 58 – 154 P Rev. rotation 150 P 2500 P Fwd. rotation CN12-7– CN12-12 Rev. rotation 50 ms CN14-1–...
  • Page 331 Power source PCB (120 V area) F101 D101 FB102 +24 V R103 2 CN3 +24 V IN F102 3 CN3 C104 R106 +24 V D103 F103 4 CN3 C101 +24 V 5 CN3 Q101 PC1_2 NTH1 6 CN3 +5 V C202 R201 7 CN3 FB201...
  • Page 332 Power source PCB (230 V area) F101 D101 FB102 +24 V R103 2 CN3 +24 V IN F102 3 CN3 C104 R106 +24 V D103 F103 4 CN3 C101 +24 V 5 CN3 Q101 PC1_2 NTH1 6 CN3 +5 V C202 R201 7 CN3 FB201...
  • Page 333 Main PCB AD(15:0) '004_03A' AB(23:1) SPKENB_ R141 '004_02A' '007_01G' R140 SPSEL1 '007_01G' R139 SPSEL2 '007_01G' SPSEL3 R138 '007_01H' POLE2_ '027_01F' POLE1_ '027_01F' R136 ASTB_ ASTB '004_03D' R135 '004_03D' WRL_ CPUX1 R134 '028_09A' '004_03D' R133 WRH_ '004_03D' R102 R132 IORD_ '004_03D' D8H16L IORD R131...
  • Page 334 Main PCB CPDBUS(208:1) '004_01A' IODIR IDB13 READY0 IDB14 REFR00 IDB15 DACK10 DACK00 RAS0 IORD0 IOWR0 WRL0 WRH0 AST0 AB23 AB22 AB21 AB20 IA10 AB19 IA11 AB18 IA12 AB17 IA13 AB16 IA14 AD15 IA15 AD14 IA16 IA17 IA18 AD13 IA19 AD12 IA20 AD11 IA21...
  • Page 335 Main PCB CPDBUS(208:1) '003_11A' MAB(9:0) IAB(23:0) AB(23:16) SAB(15:1) '011_02D' '010_09C' '002_02A.005_01B' '005_01B' AD(15:0) SDB(15:0) '002_02A' '005_01A' R211 R242 R286 R212 R243 R287 R213 R244 R288 R214 R245 R289 R215 R246 R290 R216 R247 R291 R217 R248 R218 R249 R292 R250 R293 R219 R251...
  • Page 336 Main PCB SDB(15:0) '004_05A.006_02A' AB(23:16) '004_04A.006_2A' SAB(15:1) '004_04A.006_02A' 4M MASK ROM 512K×16 EEPROM VCC2 VCC1 R309 CSCG '004_05F' C301 C302 GND6 BYTE GND5 GND4 GND3 C303 C304 GND2 GND1 GND2 BYTE GND1 RESET_ '004_09F.006_08G' CSFLM_ '004_05F' '004_03D.006_02D' WRFLM_ '004_05F' CG ROM & FLASH MEM 3-7-11 PointSource Ai1810F (MCA) S/M...
  • Page 337 Main PCB SDB(15:0) '005_01A.007_01A' AB(23:16) '005_01B.023_05A' SAB(15:1) RIC-4513 '005_01B.007_01A' IC81 32×8 SRAM 32K×8 SRAM RTCD '002_10D' DATA STDP RTCCLK '002_10D' C402 RTCCE '002_10D' R411 R412 R413 L401 L402 VCC2 C401 C407 VCC1 CSSRM '004_05F' WRSRML_ '004_05F' WRSRMH_ '004_05F' '005_01F.007_01D' R404 R410 R404 IC34...
  • Page 338 Main PCB SDB(15:0) '006_02A.022_01A' SAB(15:1) '006_02A.022_01A' IK×16 DRAM +5V_B L501 DMRAS_ '023_11E' VCC3 DMCASOH_ '023_11C' VCC2 CASU DMCASOL_ '023_11E' C508 C509 C510 CASL VCC1 '006_02C.023_05E' GND3 GND2 GND1 74HC08 WRL_ '004_03D' WRDRM WRH_ '023_05E' '004_03D' IC74 +12V IC10 R501 CN11 ANA MPX PW AMP BEEP...
  • Page 339 Main PCB IODB(15:0) '009_02A' IC11 IOAB(10:1) '009_02A' 28.8K Modem C620 C621 C622 C623 CSMDM_ '004_05E' SIORD_ '004_05E.009_02B' SIOWR_ '004_05E.009_02B' RESETM_ INTMOM '002_10G' '002_02D' C616 R607 IC12 DSPRST DSPIRO CLKIN C615 IACKIN TMODD R608 MODRXD '027_01D' R604 R603 R602 R612 RXRD_DSR TXRD_RI L601 C612...
  • Page 340 Main PCB IODB(15:0) '008_02A.010_01A' IC82 IOAB(10:1) '008_029.010_01A' JBIG/JPEQ CEP CSOM_ '004_05F' SIORD_ '008_02B.010_01C' SIOWR_ '008_02C.010_01C' RESET_ '006__08G.010_01C' BUS16 TEST1 TEST0 CLK16M INTQM '004_09F.010_01B' INTR '002_02D' MCLK DACK1_ R701 DREQ1 '004_03E' DREQ '002_02C' DACK PD31 YCC11 PD30 YCC10 PD29 YCC9 YCC8 PD28 YCC7 PD27...
  • Page 341 Main PCB IODB(15:0) '009_02A.012_02A' IOAB(10:1) '009_02A.012_02A' IOA3 IOD15 IOA2 IOD14 IOA1 IOD13 IOA0 IOD12 IOD11 IC13 IOD10 IOD9 ACEE IOD8 IOD7 IOD6 CLK16M '009_02C.012_02C' IOD5 IOD4 RESET_ '009_02C.012_09B' IOD3 IOD2 CSACE_ IOD1 '004_05E' SIORD_ '009_02B.014_02D' IORD IOD0 SIOWR_ IORW '009_02B.012_09B' INTACE '002_02D' DACK0_...
  • Page 342 Main PCB IDB(15:0) '010_01E.012_02F' BMOB(15:0) '026_02A' IC84 R820 R819 R818 R817 R816 R815 R814 R813 IC83 R812 R811 R810 R805 R806 R807 R808 R809 RMDIR '004_09E' BMEN_ '004_09E' MAB(9:0) '004_10A.026_02A' IC14 1M×16 DRAM IC83 IC84 L801 C821 C820 IRAS0_ '004_10C.026_02E' VCC3 ICAS0_ '004_10C'...
  • Page 343 Main PCB IODB(15:0) '010_01A.014_02B' IOAB(10:1) CSRC_ '004_05E' '010_01A.014_02A' RDRC_ '004_06G' SIOWR_ '010_01C.014_02D' RESET_ '010_01C.014_02D' INTRC_ IRQL '002_02D' CLK16M CLKI6M '010_01B.018_10D' BREQ1_ TST5 IMBREQL '004_10D' BACK1_ TST4 IMBACKL '004_10D' TST3 IMA23 TST2 IMA22 IC16 TST1 IMA21 TST0 IMA20 RCSC IAS_ '004_07F.018_10D' IMASL IMA19 IWR_...
  • Page 344 Main PCB FIPBUS(208:1) '014_01A' FI4D2 FI4D3 FI4D4 WR2L FI4D5 DE2L FI4D6 FI4D7 SA212 SA211 SHSYNCL SA210 SYSYNCL SA29 FHSYNCL FYSYNCL SA28 RRS2L SA27 WRS2L SA26 SA25 SA24 EK0D0 IC17 EK0D1 SA23 EK0D2 SA22 EK0D3 SA21 SA20 EK0D4 EK0D5 SD17 EK0D6 SD16 EK0D7 SD15...
  • Page 345 Main PCB FIPBUS(208:1) '013_11A' FS1A(12:0) IOAB(10:1) '016_02A' '012_02A.018_02A' EK0D(7:0) FI0D(7:0) '016_05E' '015_01B' R933 R941 R905 R942 R934 R906 R943 R935 R907 R936 R944 R908 R945 R937 R909 R946 R938 R910 IODB(15:0) R939 R947 '012_02A.018_02B' R911 EKID(7:0) FI1D(7:0) R940 R948 R912 '016_08E' '015_04B' R913...
  • Page 346 Main PCB FI1D(7:0) FI2D(7:0) FI3D(7:0) FI4D(7:0) FI0D(7:0) '014_07B' '014_07C' '014_07D' '014_07E' '014_07A' IC18 IC19 IC20 IC21 5048×16 LINE 5048×16 LINE 5048×16 LINE 5048×16 LINE RSTR RSTR RSTR RSTR WRST WRST WRST WRST L902 L903 L904 L905 RCLK VCC2 RCLK VCC2 RCLK VCC2 RCLK...
  • Page 347 Main PCB IC22 IC23 FS1D(7:0) FS2D(7:0) 32K×8 SRAM '014_05C' 32K×8 SRAM '014_05E' FS1A(12:0) FS2A(12:0) '014_05A' '014_05D' L906 L907 C944 C945 FRDS1_ FRDS2_ '014_05D' '014_05F' FWRS1_ FWRS2_ '014_05D' '014_05F' IC25 5048×16 LINE IC24 EK0D(7:0) EK1D(7:0) ESVD(7:0) '014_11B' '024_02A' '014_11A' FIDIN(7:0) 8K×8 LINE '014_02D' FRRES2_ FMREFIP...
  • Page 348 Main PCB VCBUS(208:1) '018_01A' IMWAITL FFR15 TST6 FFR16 FFR17 FF6RCK IMA0 FF5PRSL IMA1 FF6WCK IMA2 FF6WRSL IMA3 IMA4 IMA5 FF600 IMA6 FF601 IMA7 FF602 FF603 IMA8 FF604 IMA9 FF605 IMA10 FF6I0 IC17 IMA11 FF6I1 IMA12 FF6I2 IMA13 FF6I3 IMA14 FF6I4 IMA15 FF6I5 SRAMRDL...
  • Page 349 Main PCB VCBUS(208:1) '017_11A' IAB(23:0) '012_09F' IOAB(10:1) VFIPD(7:0) '014_02A.022_10A' '019_02A' R1002 R1003 VFI1WRS_ FNIT1 '020_02F' '014_02F' VFI1RRS_ R1004 '020_02F' VFI1WCK R1005 R1027 FHSYNC_ '020_02F' '014_02F' VFI1RCK R1006 R1028 FVSYNC_ '020_02F' '014_02F' R1007 VFI2WRS_ R1008 VMREOUT_ '020_02F' IODB(15:0) '023_01E' VFI2RRS_ R1009 '014_02B.022_05A' VNITIOUT '020_02E'...
  • Page 350 Main PCB IDB(5:0) '012_02F.020_02A' IC29 IC27 VFIDPDD(7:0) VFIPD(7:0) '018_07A' IC40 × 8 LINE × 8 LINE VF6I(5:0) VF6O(5:0) '018_07C' '018_07D' VFO1RE_ '018_07C' VF6RRS_ VFO1RRS_ RRST '018_07E' RRST L1003 '018_07B' L1001 VF6WRS_ VFO1WRS_ WRST '018_07E' WRST '018_07B' C1028 C1026 VF6RCK RCLK '018_07E' RCLK VF6WCK...
  • Page 351 Main PCB VFI2D(7:0) '018_09D' IC31 VF1DB(7:0) IDB(15:0) '019_07A' IC42 × 8 LINE RRST L1005 WRST C1033 RCLK WCLK VFI1D(7:0) '018_09C' IC32 IC43 × 8 LINE RRST L1006 VLICK WRST '018_09B' VLIEN2_ C1034 '018_09C' VLIEN1_ RCLK '018_09B' WCLK VFI2RRS_ '018_09B' VFI2WRS_ '018_09B' VFI2RCK '018_09B'...
  • Page 352 Main PCB VSD(7:0) '018_05D' VSA(14:0) '018_05B' IC33 32K × 8 SRAM L1007 VCSS_ '018_05E' VRDS_ C1038 '018_05E' VWRS_ '018_05E' VC SRAM 3-7-27 PointSource Ai1810F (MCA) S/M...
  • Page 353 Main PCB IODB(15:0) SDBI(15:0) SAB(15:1) '007_91A_023_01A' '018_02B.025_08C' '007_01A.023_05B' IC85 IC46 IOAB(10:1) '018_02A.025_08C' R1135 R1116 R1136 R1115 R1137 R1114 R1138 R1113 R1139 R1112 R1140 R1111 R1141 R1110 R1142 R1109 GND GND IC45 IC47 R1143 R1108 R1144 R1107 R1123 R1145 R1106 R1122 R1146 R1105 R1147...
  • Page 354 Main PCB OMD(15:0) SDB(15:0) BUCAS0 022_01A' '024_08B' '029_09B' BUCAS1 '029_09B' IC51 SCASH(4:0) '004_03E' R1201 IC54 IC57 OMA(18:1) R1202 AB(23:16) '006_02A' '024_08G' R1203 R1219 DMC AS4H_ R1237 '024_08E' R1204 SAB(15:1) R1220 '022_07A' R1205 R1221 DMC AS3H_ R1238 '024_08E' R1206 R1222 R1248 R1207 R1223 R1249...
  • Page 355 Main PCB ENGINE OPTION MEM. R1302 '+5V_B' ESVCLK R1301 '016_02G_025_06D' SVCLK ESVD(7:0) '016_02E_025_06C' R1303 SVD0 R1304 SVD1 R1335 R1305 SVD2 R1306 SVD3 CSSEL_ '004_05F. 029_02F' R1307 OMD(15:0) SVD4 '023_04A' R1308 SVD5 R1309 SVD6 R1310 SVD7 ECPRDY '018_09E' CPRDY R1312 _PRINT R1311 EPVSYNC_ '022_07F'...
  • Page 356 Main PCB OPTION PCB R1411 DMREOUT_ '023_01E' R1412 DCLK '023_01E' R1405 ONITIOUT_ '023_01E' ESVD(7:0) '024_02A' IODB(15:0) '022_06A' IOAB(10:0) '022_10A' OPTIM '022_03E' ESCTNHI '024_01G' ESVCLK '024_02A' ESVSYNC_ '024_01D' ESHSYNC_ '024_01D' OLSUOUT_ '022_10F' OPHSYNC_ '022_10F' OPHSYNC_ '022_10F' OPVCLK '022_10F' OPRD_ '022_10F' OPWR_ '022_10F' OPEXCS_ '022_10E'...
  • Page 357 Main PCB BMDB(15:0) '011_07A' MAB(9:0) '011_02D' BITMAP MEM. BITMAP MEM. R1415 R1413 R1414 R1416 IRAS0_ '011_02G' ICAS1_ '004_10C' ICAS2_ '004_10C' ICAS3_ '004_10C' ICAS4_ '004_10C' BIT MAP MEM.I/F IWR_ '018_10D' IRD_ '018_10D' 3-7-32 PointSource Ai1810F (MCA) S/M...
  • Page 358 Main PCB KPSDO '002_10E' IC60 A_+5V KPSCLK OPCB POWER '002_10E' IC60 R1501 C1501 C1502 L1501 KPSD1 R1502 L1502 '002_02F' STATUS L1503 +12V IC60 SCLK L1504 –12V KPS1G1 L1505 '002_10C' SIG1 L1506 KPS1G0 24VIN '002_10C' SIG2 C1503 C1504 GND GND C1505 C1506 R1503 R1504...
  • Page 359 Main PCB L1603 R1603 CPUX1 '002_02B' R1604 IC61 IC61 R1601 IC61 R1609 R1602 IC62 L1605 R1605 CLK16M L1601 '018_10D' C1602 C1603 C1601 R1610 R1607 L1606 L1607 RI606 FXTAL '014_07F' C1604 R1608 L1608 L1609 IC61 IC62 C1605 C1606 IC61 IC62 IC61 CLOCK GEN.
  • Page 360 Main PCB R1706 BUCAS0 '023_08A' IC68 R1707 BUCAS1 '023_08A' IC68 +5V_B IC63 C1703 +5V_B +5V_B IC65 IC65 C1701 R1701 BURAS '023_08E' BUSEL R1702 '023_08F' +5V_B C1702 +5V_B +5V_B +5V_B L1704 L1705 IC64 IC65 C1706 IC68 +5V_B C1704 IC64 IC64 C1705 RASCON1 '002_10E' REFRQ...
  • Page 361 Main PCB BCC2 CN10 BUBUT R1801 IC71 C1810 R1806 IC69 R1805 +5V_B IC69 IC69 BCHG R1803 2 D3 '002_08E' RESET '029_02F' R1804 IC69 IC72 C1615 DC-DC Conv. C1805 +12V R1807 C1806 C1807 IC70 R1808 GND GND – C1804 R1810 R1811 R1802 C1803 IC70...
  • Page 362 Engine PCB REF5V R245 C121 IC34 R445 IC38 R244 _MSRY C122 R446 _CPUADJUST VREF C125 R186 AVSS _ONW R441 _RESETOUT IC41 R442 R187 φ φ C152 AD11 1 R288 R289 XIOCS R443 SYNC AD12 2 R308 R290 _VTCCS R444 AD13 3 R309 R291 _AGC1CS...
  • Page 363 Engine PCB IC17 /RESET φ FXECLK XIOINT /LDS /XIOCS R117 R175 R147 R174 R146 R173 R145 R172 R144 R171 R143 R170 R142 *CN20-1 *CN20-2 SOUT *CN20-3 SCLK *CN20-4 CKCHG *CN20-5 * Not installed 3-7-38 PointSource Ai1810F (MCA) S/M...
  • Page 364 Engine PCB _LDS IC22 IC23 IC26 _OE1 IC26 _OE2 _OE3 IC24 _OE4 R157 ADCCLK1 ADCCLK1 ADCCLK ADCCLK2 R158 R159 ADIN1 ADIN2 R160 R161 R454 ID10 R455 ID20 R162 R453 ID11 R456 ID21 IC22 R163 R452 ID12 R457 ID22 R164 R451 ID13 R458 ID23...
  • Page 365 Engine PCB VTC5V _PVD0 VTC5V _RES R297 C142 C143 R296 R248 C123 C124 VTC5V VTC5V VTC5V _CPRDY R249 _LDout /LDout /LDON R250 R314 LBON R502 _ADJUST PWMD0 /ADJUST R251 PWMD1 DACLK R252 PWMD2 DALD R503 PWMD3 _CPULDON R504 _PRDY PWMD4 PWMD5 PMCLK R253...
  • Page 366 Engine PCB SVD4 SVD3 SVD5 SVD2 SVD6 SVD1 SVD7 SVD0 SHD5V SHD5V C164 _RSTWR C141 C140 C150 SVCLK R284 _SVSYNC SHD5V R324 _SHSYNC _PHSYNC SHD5V R316 C156 R315 SHD5V IC39 C155 C149 R485 WRD0 WWD0 WRD1 R486 WWD1 C163 WRD2 R487 WWD2 WRD3...
  • Page 367 Engine PCB *TP2 IC13 R113 IC18 ADIN1 – *C50 – *R95 *TP1 *R71 R176 IC11 R139 – R166 _CLAMP IC26 *TP3 R106 IC20 R115 IC12 R119 ADIN2 *C93 R110 R135 – R114 – R120 R105 *R124 R136 R179 IC19 R140 R141 R153 –...
  • Page 368 Engine PCB CN1-1 24VIN 24VIN CN1-2 24V-2 CN5-1 24VR CN4-1 CN1-3 24VOUT 24VOUT 24VOUT IC46 R388 CN4-2 _FEED.CL 24V-3 CN5-2 R387 PFCL 24V-2 CN1-4 CN4-3 EJOP SSW3 CN4-4 *D37 24V-2 CN5-3 FET6 CN1-5 24V-3 24VIN IC48 CN4-5 24VIN R383 CN5-4 _REG.CL R390 CN4-6...
  • Page 369 Engine PCB * D15 * R328 SCAN0 CN6-1 _SCAN0 * R436 * D40 _SCAN4 SCAN4 CN8-1 SCAN4 CN9-1 _SCAN4 PSSW1 CN6-2 CN9-2 _SENS3 _SENS0 DEV A BYPPSW1 CN8-2 CN6-3 _SENS0 CN9-3 _SENS4 DEV B _SENS1 BYPPSW2 CN8-3 SCAN0 CN6-4 _SENS1 CN9-4 _SENS5 DEV C...
  • Page 370 Engine PCB CN10-1 CN13-1 EL REM1 CN14-1 _INVERTER CN10-2 R429 ODSW CN13-2 _ORGSW R430 EL REM2 CN14-2 CN10-3 OSSW _TBLSZ1 CN13-3 CN14-3 24V-2 CN10-4 ISUH REM CN13-4 CN14-4 CN10-5 FET1 24V-2 _LMPHT R431 CN13-5 24V-2 CN10-6 R432 CN14-5 CN10-7 _TBLSZ2 CN14-6 CN10-8 CN13-6...
  • Page 371 Engine PCB CN16-1 *CN22-1 24V-2 CN18-1 *R57 CN16-2 CN18-2 24V-2 R367 IC46 *CN22-2 _YOBI1 IC44 IC37 IC30 IC44 CN16-3 CN18-3 _PFCL1F STPFCL1 *IC5 IC46 *R55 CN16-4 STPFCL2 CN18-4 _PFCL2F C177 C137 C107 R363 *CN22-3 _YOBI2 IC46 IC44 CN16-5 CCDCLK1 *IC5 CCDCLK1 STPFCL3 CN18-5...
  • Page 372 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 CN19-3 SVD0 SVD0 _PHSYNC _PHSYNC CN19-18 CN19-33 _STS R338 R395...
  • Page 373 Engine PCB IC15 φ *R107 _TIMER *R96 _TIMERCS R108 IC28 *IC21 DALD DACLK *L10 DBVR SMVR *C53 *C52 *R150 _LMPHT *R81 R109 CW_CCW 3 _ 4 REF5V _ MO _RES TKVR CLK_OUT *R125 – OUT1 GRIDVR *R126 OUT2 IC29 R156 R155 OUT3 *R128...
  • Page 374 NCU PCB (120 V area) MCN1-3 CN1-4 PLSDIL L MCN1-4 OUT1 CN1-1 ONHOOK1 L ACIN CN1-2 ONHOOK2 L OUTAC OUT2 ACOUT IC3b CN1-12 RXIN _ N EXTEL1 MCN2-3 CN1-7 MODTXD EXTEL2 MCN2-4 CN1-19 TEL L1 CN1-5 MODRXD CN1-20 MCN3-3 CH1 COM 3 IC2a TEL L2 MCN3-4...
  • Page 375 NCU PCB (230 V area) OUT1 AC IN MCN1-3 CN1-1 ONHOOK 1 OUT AC MCN1-4 OUT2 ONHOOK 2 CN1-2 AC OUT CN1-3 KCTCNT TR10 CN1-11 OFFHOOK L TTEL 1 MCN1-2 MCN1-5 TTEL 2 IC2a CN1-12 RXIN_H TEL L1 MCN2-3 TEL L2 MCN2-4 ANALOG MPX CN1-5...
  • Page 376 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 377 Connection diagram CORES A to G are for 230V specifications only. +12V LIVE -12V VOLUME ( CN2 ) ( CN3 ) 2 PG 24VIN RELAY 3 H REM 24VIN RY24V 24VIN 4 R REM INLET 24V-2 24VOUT ( CN5 ) PSPCB CORE 24V-3...
  • Page 378 MITA COPYSTAR SOUTH AMERICA S.A. Av. Mitre 1345 Florida (1602) Pcia, Buenos Aires, Argentina. TEL : (54) 11-4730-1070 FAX : (54) 11-4760-2071 ©1999 MITA INDUSTRIAL CO., LTD. MITA and are registered trademarks of MITA INDUSTRIAL CO., LTD. Printed in U.S.A.

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