Oki C9400 Maintenance Manual
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Oki C9400 Maintenance Manual

Oki C9400 Maintenance Manual

Color led page printer
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Download this manual See also: User Manual, Setup Manual
Oki Data CONFIDENTIAL
C9400/C9200
Color LED Page Printer
MAINTENANCE
MANUAL
ODA/OEL/INT
2002-12-10 Rev.6
1 / 142
41388601TH Rev.6

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Summary of Contents for Oki C9400

  • Page 1: Maintenance Manual

    Oki Data CONFIDENTIAL C9400/C9200 Color LED Page Printer MAINTENANCE MANUAL ODA/OEL/INT 2002-12-10 Rev.6 1 / 142 41388601TH Rev.6...
  • Page 2 Oki Data CONFIDENTIAL Document Revision History Corrected items Person in Rev.No. Date charge Page Description of change 2000-12-05 ISSUE EM3 Murakami 2000-12-13 Correction of errors in K Yamazaki the parts list 2001-05-15 CN11 Kasuya 2001-10-12 K Yamazaki 2002-11-27 K Yamazaki...
  • Page 3 Although reasonable efforts have been taken in the preparation of this manual to assure its accuracy, this manual may still contain some errors and omissions. OKI will not be liable for any damage caused or alleged to be caused, by the customer or any other person using this maintenance manual to repair, modify, or alter C9400/C9200 in any manner.

  • Page 4: Table Of Contents

    Oki Data CONFIDENTIAL CONTENTS 1. SPECIFICATIONS .................... 6 Basic System Configuration ..................... 6 Printer Engine Specifications ................... 7 Option Configuration ......................8 Specifications ........................9 2. PARTS REPLACEMENT ................11 Precautions in Replacing Parts ..................11 Parts Layout ........................13 Replacing Parts ......................
  • Page 5 Image troubleshooting ..................90 6. WIRING DIAGRAM ..................102 Resistance Check ......................102 Parts Layout on Boards ....................107 7. Parts List ...................... 111 Printer Unit Parts List ....................111 C9400/C9200 Finisher for OEL/INT Parts Layout ............131 41388601TH Rev.6...

  • Page 6: Specifications

    Oki Data CONFIDENTIAL SPECIFICATIONS Basic System Configuration The basic system configuration of C9400/C9200 is illustrated in Figure 1.1. 41388601TH Rev.6...

  • Page 7: Printer Engine Specifications

    Oki Data CONFIDENTIAL Printer Engine Specifications The inside of the printer is composed of the followings: • Electrophotographic Processor • Paper Paths • Controller Block (CU and PU) • Operator Panel • Power Units (High-Voltage Unit and Low-Voltage Unit) Figure 1-2 shows the printer configuration.

  • Page 8: Option Configuration

    Oki Data CONFIDENTIAL Option Configuration The followings are available as options on C9400/C9200. 2nd Tray/ 3rd Tray Duplex Unit Large-Capacity Tray Expansion Memory 64/128/256MB Internal Hard Disk Ethernet Board 41388601TH Rev.6...

  • Page 9: Specifications

    Oki Data CONFIDENTIAL Finisher Unit (for C9400/C9200 OEL/INT Version) Specifications Dimensions Height: 460mm Width: 666mm Length: 626mm Weight 72kg Paper Type: Ordinary paper and transparencies (Recommended: ML OHP01) Size: Postal card, Legal 13" or 14", Executive, A4, A5, B5, A6, A3 A3-Nobi, B4 (Only the 1st tray and the front feeder support A6 and postal card sizes.)
  • Page 10 Oki Data CONFIDENTIAL (12) Temperatures and Relative Humidities Temperature Temperature (ºF) Temperature (ºC) Remark 17 to 27ºC (Temperatures to Operating 50 to 89.6 10 to 32 assure full color print quality) Non-Operating 32 to 109.4 0 to 43 Power-off Storage (Max. One Year) -14 to 109.4...

  • Page 11: Parts Replacement

    Oki Data CONFIDENTIAL PARTS REPLACEMENT This section describes the procedure for replacing the parts, assemblies and units in the field. The replacing procedure is given for detachment. To attach, use the reverse procedure. Precautions in Replacing Parts (1) Before replacing the parts, be sure to remove the CA cable and the interface cable.
  • Page 12 Oki Data CONFIDENTIAL [Maintenance Tools] Table 2-1 lists tools necessary to replace the units. Table 2-1 Maintenance Tools Service Tools Q' ty Place of use Remarks No. 1-100 Philips 2~2.5 mm screws screwdriver No. 2-200 Philips 3~5 mm screws screwdriver, Magnetized No.

  • Page 13: Parts Layout

    Oki Data CONFIDENTIAL Parts Layout Figure 2.1 13 / 41388601TH Rev.6...
  • Page 14 Oki Data CONFIDENTIAL [Top Cover Assy] Figure 2.2 14 / 41388601TH Rev.6...
  • Page 15 Oki Data CONFIDENTIAL [Printer Unit-1/2] Figure 2.3 15 / 41388601TH Rev.6...
  • Page 16 Oki Data CONFIDENTIAL [Printer Unit-2/2] Figure 2.4 16 / 41388601TH Rev.6...
  • Page 17 Oki Data CONFIDENTIAL [Cassette Guide Assy (L), (R)] Figure 2.5 17 / 41388601TH Rev.6...
  • Page 18 Oki Data CONFIDENTIAL Figure 2.6 18 / 41388601TH Rev.6...
  • Page 19 Oki Data CONFIDENTIAL [Duplex Unit] Figure 2.7 19 / 41388601TH Rev.6...

  • Page 20: Replacing Parts

    Oki Data CONFIDENTIAL Replacing Parts This section describes how to replace the parts and assemblies illustrated below. 41531301 41515110 Print Engine Controller PWB (2.3.22) 41502304 × 4 LED Assy (2.3.2) 40737401 Power-Unit AC-DC Switching (115V) (2.3.34) 40737501 Power-Unit AC-DC Switching (230V) (2.3.34) 40737601 HV Power Supply (2.3.35)

  • Page 21: Top Cover

    Oki Data CONFIDENTIAL 2.3.1 Top cover Open the top cover Assy. Remove the nine screws 1 to detach the top cover 2. 21 / 41388601TH Rev.6...

  • Page 22: Led Assy/ Led Assy Spring

    Oki Data CONFIDENTIAL 2.3.2 LED Assy/ LED Assy spring Open the top cove 1. Remove the three cables, and unhook the LED Assy 2 at the two places to demount it (The two springs 3 become detached together with the LED Assy 2).

  • Page 23: Top Cover Unit

    Oki Data CONFIDENTIAL 2.3.3 Top cover unit Remove the top cover (see section 2.3.1). Remove the rear cover (see section 2.3.12). Remove the front cover (see section 2.3.11). Remove the electrical chassis (see section 2.3.21). Unscrew the screws 1 and 2 to remove the limiters (F) 3 and (R) 4.

  • Page 24: Control Panel Assy/ Control Panel Bezel/ Led Control Pwb/ Toner Sensor/Stack Full Sensor/ Control Panel Tape Harness/ Eject Roller

    Oki Data CONFIDENTIAL 2.3.4 Control panel Assy/ Control panel bezel/ LED control PWB/ Toner sensor/ Stack full sensor/ Control panel tape harness/ Eject roller Detach the control panel bezel 1. Remove the screws 2 to demount the control panel 3.

  • Page 25: Top Cover Handle/ Tope Cover Latch/ Top Cover Latch Spring

    Oki Data CONFIDENTIAL 2.3.5 Top cover handle/ Tope cover latch/ Top cover latch spring Remove the two screws 1 to detach the top cover handle 2 and disengage the top cover latch 3 (The two top cover latch springs 4 become detached).

  • Page 26: Eject Guide Assy

    Oki Data CONFIDENTIAL 2.3.6 Eject guide Assy Remove the seven screws 1 to detach the eject guide Assy 2. 26 / 41388601TH Rev.6...

  • Page 27: Cassette Assy/ Blind Cover/ Side Cover R Assy

    Oki Data CONFIDENTIAL 2.3.7 Cassette Assy/ Blind cover/ Side cover R Assy Detach the cassette Assy 1. Disengage the blind cover 2 at the two places to detach it. Unscrew the two screws to remove the stopper 4. Disengage the claw on the left support of the side cover R to detach the side cover R.

  • Page 28: Feed Rollers

    Oki Data CONFIDENTIAL 2.3.8 Feed rollers Remove the cassette. Unlatch and demount the feed rollers 1. 28 / 41388601TH Rev.6...

  • Page 29: Left Side Cover

    Oki Data CONFIDENTIAL 2.3.9 Left side cover Remove the four screws 1 to detach the left side cover 2. 29 / 41388601TH Rev.6...

  • Page 30: Face-Up Tray

    Oki Data CONFIDENTIAL 2.3.10 Face-up tray Open the face-up tray in the arrow direction and move the links 2 out of engagement (at two places each of the links) to detach the face-up tray 1. 30 / 41388601TH Rev.6...

  • Page 31: Front Cover

    Oki Data CONFIDENTIAL 2.3.11 Front cover Open the top cover 1. Disengage the claws and remove the blind cover 2. Unscrew the six screws 4 to detach the front cover 3. 31 / 41388601TH Rev.6...

  • Page 32: Rear Cover

    Oki Data CONFIDENTIAL 2.3.12 Rear cover Open the top cover 1, Remove the five screws 3 and 4 to detach the rear cover 2. 32 / 41388601TH Rev.6...

  • Page 33: Multipurpose Tray Assy/ Multipurpose Tray Cover Assy/ Links/Multipurpose Tray Top Cover/ Multipurpose Tray Drive Gear

    Oki Data CONFIDENTIAL 2.3.13 Multipurpose tray Assy/ Multipurpose tray cover Assy/ Links/ Multipurpose tray top cover/ Multipurpose tray drive gear Remove the rear cover (see section 2.3.12). Remove the front cover (see section 2.3.11). Unscrew the three screws 1 to detach the multipurpose tray top cover 2.

  • Page 34: Drum Contact Assys

    Oki Data CONFIDENTIAL 2.3.14 Drum contact Assys Insert a flatblade screwdriver between the printer case and the drum contact Assy 1 to demount the drum contact Assy. 34 / 41388601TH Rev.6...

  • Page 35: Registration Roller Assy (A)/ Registration Drive Gear (A)

    Oki Data CONFIDENTIAL 2.3.15 Registration roller Assy (A)/ Registration drive gear (A) Remove the front cover (see section 2.3.11). Remove the rear cover (see section 2.3.12). Remove the multipurpose tray (see section 2.3.13). Unscrew the four screws 1 to demount the registration roller Assy (A) 2.

  • Page 36: Registration Roller Assy (B)

    Oki Data CONFIDENTIAL 2.3.16 Registration roller Assy (B) Remove the cassette Assy. Remove the front cover (see section 2.3.11). Remove the rear cover (see section 2.3.12). Remove the electrical chassis (see section 2.3.21). Remove the registration clutch (see section 2.3.17).

  • Page 37: Registration Clutch, Registration Motor Assy

    Oki Data CONFIDENTIAL 2.3.17 Registration clutch, Registration motor Assy Remove the left side cover (see section 2.3.9). Remove the electrical chassis (see section 2.3.21). Remove the connector and the E ring 1, then screws 3 and 4, and then the earth plate 5.

  • Page 38: Cooling Fan

    Oki Data CONFIDENTIAL 2.3.18 Cooling fan Unhook the connector 1, and remove the screws 2 and the cooling fan 3. air direction 38 / 41388601TH Rev.6...

  • Page 39: Color Registration Sensor Assy

    Oki Data CONFIDENTIAL 2.3.19 Color registration sensor Assy Remove the two screws 1 and the three connectors to demount the color registration sensor Assy 2. Remove the earth plate B 3. 39 / 41388601TH Rev.6...

  • Page 40: Duplex Guide Assy

    Oki Data CONFIDENTIAL 2.3.20 Duplex guide Assy Unlatch and demount the duplex guide Assy 1. Remove the springs 2. Main chassis (L side) 40 / 41388601TH Rev.6...

  • Page 41: Electrical Chassis/ Electrical Chassis Cooling Fan

    Oki Data CONFIDENTIAL 2.3.21 Electrical chassis/ Electrical chassis cooling fan Unscrew the five screws 1 and two screws 2 to remove the plate A 3. Unscrew the thirty-one screws 4 to remove the shield plate B 5. Remove the printer engine controller PWB (see section 2.3.22).

  • Page 42: Printer Engine Controller Pwb

    Oki Data CONFIDENTIAL 2.3.22 Printer engine controller PWB Remove the rear cover (see section 2.3.12). Remove the electrical chassis and the electrical cooling fan (see section 2.3.21). Remove the five screws 1 and all the connectors to demount the printer engine controller PWB 2.

  • Page 43: Printer Unit Chassis

    Oki Data CONFIDENTIAL 2.3.23 Printer unit chassis Unscrew the screw 1 and remove the AC switch Assy 2. Remove the four black screws 3 and six screws 4 to detach the printer unit chassis 5. 43 / 41388601TH Rev.6...

  • Page 44: Entrance Cassette Sensor Actuator

    Oki Data CONFIDENTIAL 2.3.24 Entrance cassette sensor actuator Remove the printer unit chassis (see section 2.3.12). Turn over the main chassis. Remove the two clamps with tweezers to demount the entrance cassette sensor actuator 1. Main chassis 44 / 41388601TH Rev.6...

  • Page 45: Entrance Sensor Pwb

    Oki Data CONFIDENTIAL 2.3.25 Entrance sensor PWB Remove the registration roller Assy (B) (see section 2.3.16). Remove the two screws 1 to demount the entrance sensor PWB 2. 45 / 41388601TH Rev.6...

  • Page 46: Entrance Mt Sensor Actuator And Entrance Belt Sensor Actuator

    Oki Data CONFIDENTIAL 2.3.26 Entrance MT sensor actuator and Entrance belt sensor actuator Remove the entrance sensor PWB (R71) (see section 2.3.25). Unlatch and detach the entrance MT sensor actuator 1. Unlatch and detach the entrance belt actuator 2. 46 /...

  • Page 47: Main Motor Fan/ Fuser Eject Roller

    Oki Data CONFIDENTIAL 2.3.27 Main motor fan/ Fuser eject roller Unscrew the two screws 1 to remove the fan Assy 2. Unscrew the fuser eject roller contact 4. Remove the fuser drive gear 5. Unscrew the fuser drive gear Assy 8.

  • Page 48: Eject Sensor Assy

    Oki Data CONFIDENTIAL 2.3.28 Eject sensor Assy Remove the fuser eject roller (see section 2.3.27). Remove the screw 1 and connector 2 to demount the (red/blue) eject sensor Assy 2. 48 / 41388601TH Rev.6...

  • Page 49: Fuser Latching Handle (L)

    Oki Data CONFIDENTIAL 2.3.29 Fuser latching handle (L) Remove the latching handle spring 1. Unscrew the fuser latching handle (L) 2, 3. 49 / 41388601TH Rev.6...

  • Page 50: Belt Motor Assy

    Oki Data CONFIDENTIAL 2.3.30 Belt motor Assy Remove the fuser latching handle (R) (see section 2.3.21). Unscrew the two screws 1 to detach the two connector 2. Demount the belt motor Assy 3. 50 / 41388601TH Rev.6...

  • Page 51: Fuser Latching Handle (R)

    Oki Data CONFIDENTIAL 2.3.31 Fuser latching handle (R) Remove the printer unit chassis (see section 2.3.23). Remove the E ring 1. Remove the fuser latching handle spring 2 to detach the fuser latching handle (R) 3. 51 / 41388601TH Rev.6...

  • Page 52: Main Motor Assy

    Oki Data CONFIDENTIAL 2.3.32 Main motor Assy Remove the belt motor Assy (see section 2.3.30). Remove all the connector. Remove the two screws 1 to demount the main motor Assy 2. 52 / 41388601TH Rev.6...

  • Page 53: Contact Assy/ Side Plate Assy

    Oki Data CONFIDENTIAL 2.3.33 Contact Assy/ Side plate Assy Remove the printer unit chassis (see section 2.3.23). Remove the four screws 1 to detach the side plate Assy 2. Remove the three screws 3 to detach the contact Assy 4.

  • Page 54: Low Voltage Power Supply

    Oki Data CONFIDENTIAL 2.3.34 Low voltage power supply Remove the printer unit chassis (see section 2.3.23). Unhook the connector 1. Remove the eight screws 2 to demount the low voltage power supply 5. 54 / 41388601TH Rev.6...

  • Page 55: High Voltage Power Supply

    Oki Data CONFIDENTIAL 2.3.35 High voltage power supply Remove the contact Assy (see section 2.3.33). Unhook the connector of the high voltage power supply 1. Remove the two screws 2 to detach the high voltage power supply 1 and the tape harness 55 / 41388601TH Rev.6...

  • Page 56: Main Feed Assy

    Oki Data CONFIDENTIAL 2.3.36 Main feed Assy Remove the printer unit chassis (see section 2.3.23). Remove the low voltage power supply and high voltage power supply (see sections 2.3.34 and 2.3.35). Unscrew the five screws 1 to remove the lower plate 2.

  • Page 57: Fuser Unit

    Oki Data CONFIDENTIAL 2.3.37 Fuser unit Open the top cover 1. Push the right and left fuser levers (blue) 2 in the arrow direction to detach the fuser unit 3. 57 / 41388601TH Rev.6...

  • Page 58: Belt Unit

    Oki Data CONFIDENTIAL 2.3.38 Belt unit Open the top cover 1. Remove the I/D unit. Push the lever (blue) 2 in the arrow direction, raise the handle (blue) and detach the belt unit 58 / 41388601TH Rev.6...

  • Page 59: Duplex Unit

    Oki Data CONFIDENTIAL 2.3.39 Duplex unit Remove the cassette Assy, the front cover and the front cover inner buffle. Unlatch the rear at the right and left and pull the duplex unit 1 toward the front. 59 / 41388601TH Rev.6...

  • Page 60: Cu Assy

    Oki Data CONFIDENTIAL 2.3.40 CU Assy Pulling out Control Board 1. Loosen the two screws 1. 2. Pull the control board 2 out. 3. Place the control board 2 on a flat table. Detaching Fan 1. Remove the connector 3.
  • Page 61 Oki Data CONFIDENTIAL Demounting SWA Board 1. Remove the three screws 6 and screw 7 to detach the fan bracket 8. 2. Remove the screw 9 and four screws 0 to detach the plate support A and the guide rail AB.

  • Page 62: Adjustment

    Oki Data CONFIDENTIAL ADJUSTMENT Adjustments are carried out by key operations on the operator panel. The maintenance menu is included in the general menu of this printer. Choose the maintenance menu for adjustment. Maintenance Menu and Its Functions The general menu has the category, MAINTENANCE MENU.

  • Page 63: Short Plug Settings

    Oki Data CONFIDENTIAL Short Plug Settings The SWA board has two short plugs that can be set as follows: Short Plug (WE1) Sets flash ROM DIMM to connect WE signals. (1-2 Short: Disconnects WE signals; 2-3 Short: Connects WE signals.) The factory-shipped short plug is set to the 2-3 short: Re-programmable the Flash ROM DIMM.

  • Page 64: Adjustment After Part Replacement

    Oki Data CONFIDENTIAL Adjustment after Part Replacement Adjustment to be implemented after each part replacement is described below. Adjustment and correction of color registration are always required for each part replacement. Adjustment Replaced Part LED Head Color balance adjustment Drum Cartridge (Y, M, C, K) Not required.

  • Page 65: Color Balance Adjustment

    Oki Data CONFIDENTIAL Color Balance Adjustment Color balance has been adjusted appropriately when a printer is shipped from the plant. However, it may be out of the appropriate balance during use. In such a case, color balance should be modified.
  • Page 66 Oki Data CONFIDENTIAL 66 / 41388601TH Rev.6...

  • Page 67: Eeprom Replacement After Swa Board And K73 Board Replacement

    Oki Data CONFIDENTIAL EEPROM Replacement after SWA Board and K73 Board Replacement When replacing the SWA Board or K73 Board, the EEPROM used by the user must be removed and re-mounted on the new board (to deliver the user setting and font installment information to the new board).

  • Page 68: Regular Maintenance

    Oki Data CONFIDENTIAL REGULAR MAINTENANCE Parts to be Replaced Regularly It is recommended that a user should replace the parts below regularly according to the replacement standard. (If not replaced, print quality is not assumed or it may result in a failure.)

  • Page 69: Troubleshooting Procedures

    Oki Data CONFIDENTIAL TROUBLESHOOTING PROCEDURES Tips for Troubleshooting Check the basic check points covered in the user’s manual. Gather as much information on the problem from the customer as possible. Perform inspections in conditions close to those in which the problem had occurred.

  • Page 70: Preparation For Troubleshooting

    Oki Data CONFIDENTIAL Preparation for Troubleshooting Operator panel display The failure status of this printer is indicated on the LCD (liquid crystal display) of the Operator panel. Take the proper corrective action according to the message displayed on the LCD.

  • Page 71: Lcd Message List

    Oki Data CONFIDENTIAL 5.5.1 LCD Message List The printer indicates a Service Call Error message on the LCD as shown below, detecting an unrecoverable error. Service Call nnn : Error Note: nnn is an error code. When the Service Call message is displayed, the error information corresponding to the error code appears on the lower line of the LCD.
  • Page 72 Oki Data CONFIDENTIAL Table 5-1-1 Operator Alarms (2/6) Message Cause Error Description Solutions CU EEPROM Error Service Call Can the printer recover from the error by Replace the EEPROM. (Settings of the 040: Error replacing the EEPROM on the CU board? user must be restored on the new.)
  • Page 73 Oki Data CONFIDENTIAL Table 5-1-1 Operator Alarms (3/6) Message Cause Error Description Solutions Error detected at Engine Service Call Does the error repeat? Replace the engine control board (K73). 106: Error Control Logic. Service Call Error detected at cooling 1) Is the error message displayed? Turn off/on the printer.
  • Page 74 Oki Data CONFIDENTIAL Table 5-1-1 Operator Alarms (4/6) Message Cause Error Description Solutions Service Call Communication 1) Is the error message displayed? Turn off/on the printer. 181: Error failure with an option unit detected by 2) Does the error repeat? Replace the option unit.
  • Page 75 Oki Data CONFIDENTIAL Table 5-1-1 Operator Alarms (5/6) Message Cause Error Description Solutions Paper jam detectedd Check DUPLEX 1) Does misfeed occur in the Duplex unit? Remove the misfed paper and close uring paper feed 372: Paper Jam the cover.
  • Page 76 Oki Data CONFIDENTIAL Table 5-1-1 Operator Alarms (6/6) Message Cause Error Description Solutions Load *** Papers No paper in the 1) No paper in the specified cassette? Load papers in the specified cassette. 491~495: No Cassette 1, 2, 3, 4 or 5 paper in the Tray detected.
  • Page 77 Oki Data CONFIDENTIAL FAN#5 Equipment plane view S/C-120 S/C-51 S/C-121 CUboaud FAN#3 FAN#4 S/C-122 FAN#2 S/C-121 S/C-121 Power Supply Unit High-voltage Power Supply S/C-unspecified FAN#1 Notice: S/C---> Service Call S/C-121 AC SW Figure 5.5.1 A Power Supply-related Error Description Action Error detected at cooling fan for Engine Change FAN#4.
  • Page 78 Oki Data CONFIDENTIAL Numbers are error code Upper cover (no sensor) Punch unit JAM 06 Bin 1 (face up) JAM 03 JAM 02 Punch JAM 01 Sensor JAM 07 Paper Feed Knob Switch Bin 2 (face down) Roller Accumulator Invert...

  • Page 79: Lcd Message Troubleshooting

    Oki Data CONFIDENTIAL 5.5.2 LCD message troubleshooting LCD Message The message on the LCD (liquid crystal display) tells the problem situation of the printer. Implement the appropriate troubleshooting base on the message. Problem Flowchart Number The printer does not work normally after being turned on.
  • Page 80 Oki Data CONFIDENTIAL The printer does not work normally after turned on. • Turn off the printer, wait a few seconds, then turn it on again. • displayed on the LCD (for about 1 second)? • Is the AC cable connected correctly? Connect the AC cable correctly.
  • Page 81 Oki Data CONFIDENTIAL 2-1 Paper Input Jam (1st Tray) • Does the jam occur soon after the printer is turned on? • Yes Is the paper jammed at the entrance cassette sensor or the entrance MT sensor ? * MT : Multipurpose Tray Yes Remove the jammed paper.
  • Page 82 Oki Data CONFIDENTIAL 2-2 Paper Input Jam (Multipurpose Tray (MT)) • Does the paper jam occur immediately after the printer is powered on? • Yes Is the paper jammed at the entrance cassette sensor or the entrance MT sensor ? Yes Remove the paper jam.
  • Page 83 Oki Data CONFIDENTIAL 2-3 Paper Feed Jam • Does the paper jam occur immediately after the printer is powered on? • Yes Is the paper jammed at the entrance belt sensor? Yes Remove the jammed paper. • Does the lever of the write sensor work right? Replace the lever of the write sensor.
  • Page 84 Oki Data CONFIDENTIAL 2-4 Paper Eject Jam • Does the paper jam occur immediately after the printer is powered on? • Yes Is the paper jammed at the ejection sensor? Yes Remove the jammed paper. • Does the lever of the ejection sensor operate normally? Replace the ejection sensor lever.
  • Page 85 Oki Data CONFIDENTIAL 2-5 DUPLEX jam • Does the paper jam occur immediately after the printer is turned on? • Yes Is the paper jammed at the in sensor, rear sensor or front sensor in the DUPLEX unit? Yes Remove the jammed paper.
  • Page 86 Oki Data CONFIDENTIAL Paper Size Error • Is paper in the specified size used? Use paper that complies with the specification. Yes Is the paper jammed at the entrance MT sensor or at the paper width sensor? Yes Remove the jammed paper.
  • Page 87 Oki Data CONFIDENTIAL Image Drum Unit (IDU) Up/Down Error • Turn off the printer, wait a few seconds, then turn it on again. • Does each drum unit rotate properly while printing? Is the resistance of the IDU motor at the rated value (approx. 4.0 Ω)? •...
  • Page 88 Oki Data CONFIDENTIAL Fuser Unit Error • Does the fuser error occur immediately after the printer is turned on? • Yes Does the heat roller thermistor have a open or short circuit? (See Figure 5.1.) (at room temperature 0 °C~ 43 °C, approx. 190 ~ 980 Ω) Yes Replace the fuser unit.
  • Page 89 Oki Data CONFIDENTIAL Fan Motor Error • Does the fan of the low-voltage power supply unit rotate after the printer is turned on? • Yes Does the error recur after the fan of the low-voltage power supply unit has been replaced? •...

  • Page 90: Image Troubleshooting

    Oki Data CONFIDENTIAL 5.5.3 Image troubleshooting When the printout images are not satisfactory as shown below, follow the troubleshooting procedures given in this section. Printout problem Flowchart No. Light or blurred images, or images in inappropriate color tone (Figure 5.2- A ) Dark background (Figure 5.2- B )
  • Page 91 Oki Data CONFIDENTIAL Light or blurred images or images in inappropriate color tone on the whole printout area (Figure 5.2- A ) • Is toner low? (Is the message "Toner Low" displayed?) Yes Supply toner. • Is the specified paper used? Use the specified paper.
  • Page 92 Oki Data CONFIDENTIAL Dark background (Figure 5.2- B ) • Was each ID exposed to external light for a long time? Yes Replace the ID unit. Note: Reset the counter after replacement. • Are the rollers in the fuser unit contaminated? Yes Replace the fuser unit.
  • Page 93 Oki Data CONFIDENTIAL Blank paper (Figure 5.2- C ) • Is each LED head assembly connected to the junction board (Y71 PWB) and Engine board (K73 PWB)correctly? Check the cable connection the LED assembly with the junction board (Y71 PWB) and engine board.
  • Page 94 Oki Data CONFIDENTIAL Band/stripes in black or color in the longitudinal direction (Figure 5.2- D ) • Is each LED head assembly connected to the junction board (Y71 PWB) correctly? Connect the LED head assembly to the junction board correctly.
  • Page 95 Oki Data CONFIDENTIAL Band/stripes in white or irregular color in the longitudinal direction (Figure 5.2- F ) • Is each LED head lens contaminated? Yes Clean the LED head lens. • Is each LED head assembly connected to the junction board (Y71 PWB) correctly? Connect the LED head assembly to the junction board (Y71 PWB) correctly.
  • Page 96 Oki Data CONFIDENTIAL Poor fusing (Images are blurred or peeled off when touched with a hand.) • Is the specified paper used? Use the proper paper. • Is the contact of the fuser unit connected correctly? Connect the contact of the fuser unit properly.
  • Page 97 Oki Data CONFIDENTIAL Cyclical printout defects (Figure 5.2- E ) Cycle Defective Part Solution 94.3 mm Image Drum Replace the ID unit. 49.6 mm Developing Roller Replace the ID unit. 67.6 mm Toner Supply Roller Replace the ID unit. 44.0 mm Charge Roller Replace the ID unit.
  • Page 98 Oki Data CONFIDENTIAL Missing characters • Is each LED head lens contaminated? Yes Clean the lens of LED head. • Is each LED head assembly connected to the junction board (Y71 PWB) correctly? Check the cable connection, and connect the LED head to the junction board correctly.
  • Page 99 Oki Data CONFIDENTIAL Color Misalignment • Is any of the following gears broken? (Gear assy of ID unit, Multipurpose Tray, belt unit and belt motor) Yes Replace the broken gear assembly. • Is each LED head unit connected to the junction board (Y71 PWB) correctly? Connect the LED head unit correctly with the junction board.
  • Page 100 Oki Data CONFIDENTIAL Printout colors different from the original • Is each LED head lens contaminated? Yes Clean the LED head lens. • Is each LED head assembly connected to the junction board (Y73 PWB) correctly? Check the cable connection (between each LED head and the junction board) and connect the LED assy to the junction board correctly.
  • Page 101 Oki Data CONFIDENTIAL Ground Charge Roller Developing Roller Toner Supply Roller Figure 5.3 101 / 41388601TH Rev.6...

  • Page 102: Wiring Diagram

    Unit Circuit Diagram Illustration Resistance Yellow Orange Between pins 1 and 2: 7.9Ω Transfer Belt Motor Between pins 3 and 4: 7.9Ω Black Black Between pins 1 and 2: 2.4Ω Main Motor (Y) Between pins 3 and 4: 2.4Ω Between pins 1 and 2: 2.4Ω Main Motor (M) Between pins 3 and 4: 2.4Ω...
  • Page 103 Unit Circuit Diagram Illustration Resistance Between pins 1 and 2: 2.4Ω Main Motor (C) Between pins 3 and 4: 2.4Ω Between pins 1 and 2: 2.4Ω Main Motor (B) Between pins 3 and 4: 2.4Ω Between pins 1 and 2: 7.9Ω Between pins 3 and 4: 7.9Ω...
  • Page 104 Unit Circuit Diagram Illustration Resistance Yellow Orange Between pins 1 and 2: 7.9Ω Fuser Motor Between pins 3 and 4: 7.9Ω Black Black Between pins 1 and 2: 7.9Ω or 8.4Ω Feeder Motor Between pins 3 and 4: 7.9Ω or 8.4Ω Yellow Orange Between pins 1 and 2: 23Ω...
  • Page 105 Unit Circuit Diagram Illustration Resistance CN-1 Geared Motor CN-2 +32 V Yellow FANALM-N CU Low-voltage Ejection Fuser Fan Black +32 V Yellow FANALM-N Low-voltage Absorption Black...
  • Page 106 Unit Circuit Diagram Illustration Resistance +5 V White FANALM-N CU Board Black +5 V Yellow ID and Fuser Black 1 Upper roller 2 Lower roller Thermostat Thermostat Between pins a and b: Heater Heater Between pins c and d: 231.4kΩ Between pins e and f: 231.4kΩ...

  • Page 107: Parts Layout On Boards

    Oki Data CONFIDENTIAL Parts Layout on Boards Print Engine Controller PWB (K73) 107 / 41388601TH Rev.6...
  • Page 108 Oki Data CONFIDENTIAL Main Controller PWB: SWA PUIF PCICU CENT 108 / 41388601TH Rev.6...
  • Page 109 Oki Data CONFIDENTIAL LED Control PWB (Y71-2 PWB) (4) Duplex Control PWB (V73- PWB) SNS1 Control Panel PWB (X71- PWB) 109 / 41388601TH Rev.6...
  • Page 110 Oki Data CONFIDENTIAL N71-PWB JODEN Entrance Sensor PWB (R71- PWB) INSNS2 INSNS1 WRSNS (8) Paper Size Sensing PWB PXC (B73- PWB) CN11 Sensor PWB (A73-PWB) LIFT (10) Option I/F PWB (C73-PWB) MAIN1 SAVIF 110 / 41388601TH Rev.6...

  • Page 111: Parts List

    Oki Data CONFIDENTIAL PARTS LIST Printer Unit Parts List Figure 7-1-1/3 111 / 41388601TH Rev.6...
  • Page 112 Oki Data CONFIDENTIAL Figure 7-1-2/3 112 / 41388601TH Rev.6...
  • Page 113 Oki Data CONFIDENTIAL Board Assy.-CU(Maintenance) 34 [41848502] consists of a set of a bracket to support Motor Fan 37 (41410201), a sheet metal to secure PCB Assy-SWA 26 (41716819, 41716820), a gasket bonded to that sheet metal, and screws (attached to the assembly).
  • Page 114 Oki Data CONFIDENTIAL Main Assembly Table 7-1-1/3 Recommended Q’ty/Year Patrs No. Name Q’ty Remarks /Unit 1000 2000 41481201 Cover Assy-R 41484905 Cassette Assy OEL/APS 41484906 Cassette Assy ODA ECO-C9400-054 41353701 Cover-Front-CS 41277901 Cover-Blank 41276401 Cover-Front OEL/APS 41749602 Cover-Assy-Front ODA ECO-C9400-054...
  • Page 115 Oki Data CONFIDENTIAL Table 7-1-2/3 Recommended Q’ty/Year Patrs No. Name Q’ty Remarks /Unit 1000 2000 41514705 ID-Y Type C3 ODA Consumable 41514706 ID-M Type C3 ODA Consumable 41514707 ID-C Type C3 ODA Consumable 41514708 ID-K Type C3 ODA Consumable 41514709...
  • Page 116 Oki Data CONFIDENTIAL Table 7-1-3/3 Recommended Q’ty/Year Patrs No. Name Q’ty Remarks /Unit 1000 2000 41716819 PCB Assy-SWA 1200dpi 41716820 PCB Assy-SWA 600dpi 8164323M0000 EEPROM(CU) 41469504 Board-TNY 41437418 Board-Memory 64MB ODA 600dpiSimplex 41437414 Board-Memory 64MB OEL 600dpiSimplex 41437410 Board-Memory 64MB...
  • Page 117 Oki Data CONFIDENTIAL Figure 7-2 117 / 41388601TH Rev.6...

  • Page 118: Top Cover Assembly

    Oki Data CONFIDENTIAL Table 7-2 Top Cover Assembly Recommended Q’ty/Year Parts No. Name Q’ty Remarks /Unit 1000 2000 41484401 Cover Assy-Stacker 41502301 LED Assy 1200dpi ODA/OEL/APS 41502302 LED Assy 600dpi ODA/OEL/APS 40861001 LED Assy Spring 41257902 LED control PWB 41349801...
  • Page 119 Oki Data CONFIDENTIAL Figure 7-3-1/2 119 / 41388601TH Rev.6...
  • Page 120 Oki Data CONFIDENTIAL Figure 7-3-2/2 120 / 41388601TH Rev.6...
  • Page 121 Oki Data CONFIDENTIAL Table 7-3-1/2 Printer Unit Chassis Recommended Q’ty/Year Parts No. Name Q’ty Remarks /Unit 1000 2000 41189701 Drum contact Assy 41483201 Registration Roller Assy (A) 41483301 Registration Roller Assy (B) 40845401 Registration Drive Gear (A) 41628401 Registration Drive Gear (A)
  • Page 122 Oki Data CONFIDENTIAL Table 7-3-2/2 Recommended Q’ty/Year Parts No. Name Q’ty Remarks /Unit 1000 2000 41303401 PWR Unit-ACDC Switch 120V 41303501 PWR Unit-ACDC Switch 230V 40737601 Power Unit(High-Voltage) 2381018P0002 HV Tape Harness 2381003P0030 HV Tape Harness ECO-C9400-070 41500101 Power Supply Insulation 4PB4013-3100P006 Screw (M3×6)
  • Page 123 Oki Data CONFIDENTIAL Figure 7-4-1/2 123 / 41388601TH Rev.6...
  • Page 124 Oki Data CONFIDENTIAL Figure 7-4-2/2 124 / 41388601TH Rev.6...
  • Page 125 Oki Data CONFIDENTIAL Table 7-4 Paper Tray Guide Recommended Q’ty/Year Parts No. Name Q’ty Remarks /Unit 1000 2000 41481301 Guide-Assy-R-1st 41481701 Roller-Feed 41766501 Roller-Feed 41488401 Roller-Feed-A3 41529101 Motor-Pulse(Hop) 41713601 Motor-Pulse(Hop) 41685401 Motor-Pulse(Hop) 41515701 Board-A73 41503001 Gear Assy-Clutch(2pin) 41502601 Rubber Foot...
  • Page 126 Oki Data CONFIDENTIAL Figure 7-5 126 / 41388601TH Rev.6...
  • Page 127 Oki Data CONFIDENTIAL Table 7-5 Duplex Unit Recommended Q’ty/Year Parts No. Name Q’ty Remarks /Unit 1000 2000 41178201 Duplex Unit 41178203 Duplex Unit 41178207 Duplex Unit 4PB4043-4718P001 Screw (SP3×10) 4PB4083-2500P008 Screw (T3×8) 4PB4013-3100P006 Screw (M3×6) 127 / 41388601TH Rev.6...
  • Page 128 Oki Data CONFIDENTIAL Figure 7-6-1/2 128 / 41388601TH Rev.6...
  • Page 129 Oki Data CONFIDENTIAL These parts are not attached to the lowest tray. Figure 7-6-2/2 129 / 41388601TH Rev.6...
  • Page 130 Oki Data CONFIDENTIAL Table 7-6 High Capacity Tray Unit, 2nd/3rd Tray Unit Recommended Q’ty/Year Parts No. Name Q’ty Remarks /Unit 1000 2000 41481301 Guide R Assy 41546901 Guide Assy.-R-1st 41546903 Guide Assy.-R-1st 41481701 Roller-Feed 41766501 Roller-Feed 41488401 Roller-Feed (A3) 41529101...

  • Page 131: C9400/C9200 Finisher For Oel/Int Parts Layout

    Oki Data CONFIDENTIAL C9400/C9200 Finisher for OEL/INT Parts Layout Part No. Name 41999549 Left Panel Upper 41999555 Left Panel Lower Assy 41999556 Cover T 41999558 Cover F 41999559 Cover R 131 / 41388601TH Rev.6...
  • Page 132 Oki Data CONFIDENTIAL 3, 3-a, 3-b, 3-c, 3-d, 3-e 3 Staple Unit 3-a Stapler 3-b Cover Staple B 3-c Cover Staple A 132 / 41388601TH Rev.6...
  • Page 133 Oki Data CONFIDENTIAL 3-d Lever B 3-e Staple Cartridge Part No. Name 41999552 Left Panel Upper 41999554 Decurl Assy Staple Unit 41999572 Stapler 41999573 Cover Staple B 41999574 Cover Staple A 41999575 Lever B 41999576 Staple Cartridge 133 / 41388601TH Rev.6...
  • Page 134 Oki Data CONFIDENTIAL Part No. Name 41999517 Punch Drive Assy 41999520 Spring B 41999523 Spring I 41999577 Cover-PWB-A 134 / 41388601TH Rev.6...
  • Page 135 Oki Data CONFIDENTIAL Part No. Name 41999514 Punch Unit Assy(2 Holes) 41999515 Punch Unit Assy(3 Holes) 41999516 Punch Unit Assy(4 Holes) 41999521 Exit Guide Straight Assy 135 / 41388601TH Rev.6...
  • Page 136 Oki Data CONFIDENTIAL Part No. Name 41999553 Power Supply Plate Assy 41999504 Bracket I Assy 41999530 Gear(Z16) 136 / 41388601TH Rev.6...
  • Page 137 Oki Data CONFIDENTIAL Dup Switch Part No. Name 41999529 Upper Side Harness Assy 41999548 PWB Plate Assy 41999551 PWB-A Assy * Set Dup switch on PWB-A Assy as the following table according to the specification of Punch Unit Assy. DS-1:ON...
  • Page 138 Oki Data CONFIDENTIAL Part No. Name 41999506 Tension D Assy 41999508 Hook R Assy 41999519 Timing Belt A 41999533 Wire 41999534 Spring C 41999537 Electric Drive Clutch 41999538 Pully 41999540 Pully T56 41999541 Timing Belt B 41999542 Spring D 41999544...
  • Page 139 Oki Data CONFIDENTIAL Part No. Name 41999505 Hook F Assy 41999507 Upper Limit Sensor Assy 41999509 Elevate Motor Assy 41999535 Timing Belt 60S3M408 41999536 Solenoid Assy 41999539 Flange 139 / 41388601TH Rev.6...
  • Page 140 Oki Data CONFIDENTIAL Part No. Name 41999510 Exit Guide Invert Assy 41999511 Gate 41999513 Roller F 140 / 41388601TH Rev.6...
  • Page 141 Oki Data CONFIDENTIAL Part No. Name 41999531 Tractor Motor 41999569 Putting Roller 141 / 41388601TH Rev.6...
  • Page 142 Oki Data CONFIDENTIAL Part No. Name 41999501 Jogging Assy 41999502 Guide Stack Assy 41999503 Center Guide Assy 41999524 Dust Box Plate Assy 41999525 Edging T 142 / 142 41388601TH Rev.6...

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C9200

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