Oki C711 Maintenance Manual
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Oki C711 Maintenance Manual

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See also: User Manual , Setup Manual
 
 
 
 
 
 
C711 / MPS711c

Maintenance Manual

020712B
 
 
 
 
 
 

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Summary of Contents for Oki C711

  • Page 1: Maintenance Manual

                C711 / MPS711c Maintenance Manual 020712B            ...
  • Page 2 Copyright Information Copyright © 2007 by Oki Data. All Rights Reserved Disclaimer Every effort has been made to ensure that the information in this document is complete, accurate, and up-to- date. The manufacturer assumes no responsibility for the results of errors beyond its control. The manufacturer also cannot guarantee that changes in software and equipment made by other manufacturers and referred to in this guide will not affect the applicability of the information in it.
  • Page 3 Note! • Manual may be revised and updated at any time without notice. • Unexpected mistakes may exist in the manual. OKI will not assume any responsibility whatsoever for damage to the equipmentrepaired/adjusted/changed by the user etc with this manual.

  • Page 4: Table Of Contents

    Oki Data CONFIDENTIAL Index 1. Configuration ................6 .6 Setting content print (Configuration) ..............57 .7 Connecting method .................... 58 1.1 System configuration .................... 7 .8 User used Paper confirmation ................60 1.2 The Configuration of printer .................. 8 1. Optional parts ....................... 9 4.
  • Page 5 Oki Data CONFIDENTIAL 5.2 Maintenance Utilities ..................94 7.5. Troubleshooting the abnormal images ............182 7.5.4 Network troubleshooting ................189 5. Maintenance menu functions ................96 7.5.4.1 Connection error occurs with the Web browser ......... 189 5..1 Self-diagnostic mode .................. 96 7.5.4.2 Print operation is not possible ............

  • Page 6: Configuration

    Oki Data CONFIDENTIAL Configuration 1.1 System configuration ..............7 1.2 The Configuration of printer ............8 1.3 Optional parts ................9 1.4 Specifications ................10 1.5 Specification of interface..............13...

  • Page 7: System Configuration

    1.Configuration Oki Data CONFIDENTIAL 1.1 System configuration Figure 1-1 represents the system configuration of the printer. Cover Duplex Front Bottom open paper hopping sensor sensor sensor sensor sensor sensor sensor size SW Centronics Duplex (HOST USB) Feed clutch clutch Separator...

  • Page 8: The Configuration Of Printer

    1.Configuration Oki Data CONFIDENTIAL 1.2 The Configuration of printer The parts in the C711n are shown as below. • Electrophotography process mechanism • Paper feed path • Control part (CU part/ PU part) • Operator panel • Power part (High-voltage part/low-voltage part) The Configuration of the printer is shown in Fig 1-2.

  • Page 9: Optional Parts

    1. Configuration Oki Data CONFIDENTIAL 1.3 Optional parts The optional parts for this printer are shown as below. (4) SD memory card (1) Optional tray(second tray/ third tray) (2) Duplex Unit (3) Optional memory 44205401TH Rev.1...

  • Page 10: Specifications

    1. Configuration Oki Data CONFIDENTIAL 1.4 Specifications Division Item Division Item Dimension Width 435mm Power Input power supply (120V)110~127VAC±10%, consumption (230V)220~240VAC±10% Depth 536mm Power save mode Less than 15W Height 389mm Sleep mode About 0.9W (less than 1W) at AC120V...
  • Page 11 1. Configuration Oki Data CONFIDENTIAL Division Item Division Item Operation life Printer operation life 600,000 pieces A4 transvers direction, 5years Paper handling Paper stack capacity Legal /Universal cassette 530 pieces (70kg) (1st tray) Print duty Max 60,000 pages / month...
  • Page 12 1. Configuration Oki Data CONFIDENTIAL Division Item Division Item Option 256/512MB DIMM Status switch/ Paper out Have (can be sensor SD memory card 16GB or 32GB SD memory card Paper low None removed) It is possible to be Toner low...

  • Page 13: Specification Of Interface

    1. Configuration Oki Data CONFIDENTIAL 1.5 Specification of interface 1.5.1 Specification of USB interface (2) Cable The length of the cable: the cable of less than 5m with USB 2.0 spec. 1.5.1.1 General of USB interface (Less than 2m is recommended) (Please use the shielded wire for the cable.)

  • Page 14: Specification Of Network Interface

    1. Configuration Oki Data CONFIDENTIAL 1.5.2 Specification of network interface 1.5.2.2 Connector and cable of network interface (1) Connector 1.5.2.1 General of network interface 100BASE-TX/10 BASE-T (Auto switch, cannot be used simultaneously) Spec. Connector pins array Network Protocol TCP/IP sepc. Network layer...

  • Page 15: Specification Of Acc Interface

    1. Configuration Oki Data CONFIDENTIAL 1.5.3 Specification of ACC interface Connecting device ODC-authorized card reader/writer Maximum current supplied to the printer: 100 mA Connector Printer side: USB A receptacle (female) Downstream port DUSB-ARA42-T11A (DDK product) or equivalent Cable side: USB A plug (male) Cable Hi-Speed USB2.0...

  • Page 16: Specification Of Parallel Interface

    1. Configuration Oki Data CONFIDENTIAL 1.5.4 Specification of parallel interface 1.5.4.4 Signal of interface Name of signal Direction Function Pin NO. 1.5.4.1 General of parallel interface nStrobe (HostClk) TO PRINTER It is a pulse to read data. Data is read by posterior end.

  • Page 17: Operating Instructions

    Oki Data CONFIDENTIAL Operating instructions 2.1 Electrophotographic processing mechanism .......18 2.2 Printing process ................22...

  • Page 18: Electrophotographic Processing Mechanism

    2. Operating instructions Oki Data CONFIDENTIAL 2.1 Electrophotographic processing mechanism (1) Electrophotographic processing (2) Charging The voltage is impressed to the charging roller in contact with the surface of The general of Electrophotography process is described as below. OPC drum, and the surface of OPC drum is charged.
  • Page 19 2. Operating instructions Oki Data CONFIDENTIAL (4) Development (5) Transfer The toner adheres to the electrostatic latent image on the surface of the drum, The paper is overlapped on the surface of the OPC drum, and the electricity is and the electrostatic latent image is changed into the toner image.
  • Page 20 2. Operating instructions Oki Data CONFIDENTIAL (6) Fusing (7) Drum cleaning When the paper passes through the heat roller and backup roller unit, heat and The Unfused toner left on the OPC drum is cleaned up by the drum cleaning...
  • Page 21 2. Operating instructions Oki Data CONFIDENTIAL (9) Belt cleaning The toner left on the transport belt is cleaned up by the belt cleaning blade, and all residual toner is collected in the waste toner box of the transport belt unit.

  • Page 22: Printing Process

    2. Operating instructions Oki Data CONFIDENTIAL 2.2 Printing process The paper fed from tray 1 or tray 2, tray.3 is transferred by feeder roller, resister roller L, and transfer roller. It is transferred by MPT paper feed roller and resister roller U when the paper is fed from MPT.
  • Page 23 2. Operating instructions Oki Data CONFIDENTIAL (1) Paper feeding from 1st tray (2) Paper feeding from MPT 1. As figure 2-1 shows, a feed motor runs clockwise, a feed clutch engages and 1. As figure 2-3 shows, a feed motor runs counterclockwise, an MPT clutch paper is fed (a feed roller rotates when the feed clutch engages).
  • Page 24 2. Operating instructions Oki Data CONFIDENTIAL (3) Transport belt 1. When the transport belt motor is rotated in the direction of the arrow, the transport belt is driven. As for the belt unit, a transfer roller is set over under each color drum.
  • Page 25 2. Operating instructions Oki Data CONFIDENTIAL (4) Updown operation of ID unit The operation of each ID unit when color printing C-ID unit DOWN 1. The up and down operation of the ID unit is done by driving the liftup motor.
  • Page 26 2. Operating instructions Oki Data CONFIDENTIAL (5) Fuse unit and paper delivery (6) Cover open operation of color blur sensor and density sensor 1. The fuse unit and the delivery roller are driven by the DC motor as shown in 1.
  • Page 27 2. Operating instructions Oki Data CONFIDENTIAL General of color blur correction The color blur correction is operated by reading the pattern for correction printed on the belt with a sensor set in the sensor shutter under the belt unit. Transport belt The pattern is detected by this sensor, and the correction is operated.
  • Page 28 2. Operating instructions Oki Data CONFIDENTIAL Error-confirming method and Error-solving method Use the color blur correction test function in self-diagnostic mode to confirm the error. (See 5.3.1.6) Error solving method • CALIBRATION(L or R), DYNAMICRANGE(L or R) Check 1: When the above display appears, please check the connection of sensor cable (FFC).
  • Page 29 2. Operating instructions Oki Data CONFIDENTIAL General of the density correction The density correction is operated by reading the pattern for correction printed on the belt with a sensor set in the sensor shutter under the belt unit. Transfer belt Density correction auto-start timing •...
  • Page 30 2. Operating instructions Oki Data CONFIDENTIAL Error-confirming method and Error-solving method Toner sensor detection principle Use the density correction test function in self-diagnostic mode to confirm the error. Toner low is detected by the toner sensor (reflect sensor) installed in the equipment.
  • Page 31 2. Operating instructions Oki Data CONFIDENTIAL Counter spec Total printed page MPT printed page Tray 1 printed page Tray 2 printed page Tray 3 printed page Color-printed page number Mono-printed page number number number number number number Description Total printed page...
  • Page 32 2. Operating instructions Oki Data CONFIDENTIAL A4/Letter conversion table The paper is counted up as this sheet. Paper size Simplex Duplex LETTER EXECUTIVE LEGAL14 LEGAL13.5 LEGAL13 COM-9 COM-10 MONARCH CUSTOM LENGTH ≤ 210mm CUSTOM 210mm < LENGTH ≤ 899mm CUSTOM 900mm ≤ LENGTH 32 / 44205401TH Rev.1...

  • Page 33: Set Up

    Oki Data CONFIDENTIAL Set up 3.1 Notes and precautions ..............34 3.2 Unpack method ................35 3.3 Setting method ................36 3.4 List of equipments and accessories ..........37 3.5 Assembling method ..............38 3.6 Setting content print (Configuration) ..........57 3.7 Connecting method ..............58 3.8 User used Paper confirmation .............60...

  • Page 34: Notes And Precautions

    3. Set up Oki Data CONFIDENTIAL 3.1 Notes and precautions • Do not set it in any high-temperature locations or near any heat sources. • If the liquid such as water enters the printer, please pull out the power plug from the outlet and contact the customer center.It may cause fire.

  • Page 35: Unpack Method

    3. Set up Oki Data CONFIDENTIAL 3.2 Unpack method Personal injuries may occur. Because the weight of the printer (without Duplex unit) is approximately 33kg (in a state of packing), it needs more than two adults to lift it up.

  • Page 36: Setting Method

    3. Set up Oki Data CONFIDENTIAL 3.3 Setting method Plan view • Set the printer under these conditions. Surrounding environment: 10~32 Surrounding humidity: 20~80%RH (Relative humidity) 20cm Highest wet bulb temperature: 25 • Protect the printer from dew formation. • Use the humidifier or the static electricity prevention mats etc. when setting the printer in the environment where the humidity is 30% or less.

  • Page 37: List Of Equipments And Accessories

    3. Set up Oki Data CONFIDENTIAL 3.4 List of equipments and accessories • Make sure that the appearance of the equipment is not damaged or dirty etc. Printer software CD-ROM • Make sure that the following accessories are supplied with your printer.

  • Page 38: Assembling Method

    3. Set up Oki Data CONFIDENTIAL 3.5 Assembling method 3.5.1 Assemble the main body of the printer (3) Peel off the protection tape (4 places) on the back of the printer. Remove the protective materials. (1) Peel off the desiccant and the protection tape (four places) on the printer.
  • Page 39 3. Set up Oki Data CONFIDENTIAL (6) Pull the retainer out in the direction of the arrow (1). Return the paper cassette (8) Remove the stopper (orange) when pressing down the lever of the fuser unit to the main body of the printer.
  • Page 40 3. Set up Oki Data CONFIDENTIAL Set the image drum cartridge. (2) Put the image drum cartridge on the newspaper etc, peel off the tape of protection sheet 1 and pull it out in the direction of the arrow. (1) Take the image drum cartridge (four) out slowly.
  • Page 41 3. Set up Oki Data CONFIDENTIAL (5) Return the image drum cartridge back to the printer. (7) Close the top cover. Note! If the message of [%COLOR% Waste Toner Full.Replace Toner.] on the control panel doesn't disappear indefinitely, please make sure that the lever of the toner cartridge is fully moved in the direction of the arrow.
  • Page 42 3. Set up Oki Data CONFIDENTIAL Set the paper into the paper cassette. (4) Place the paper in the cassette with the side to be printed facing down. Note! • Place the paper with the top of the page nearest the paper cassette tab.
  • Page 43 3. Set up Oki Data CONFIDENTIAL Set the paper in multi-paper tray. (4) Place the printed side facing up, and insert the paper along the manual insertion guide straightly until bumping up. (1) Open the multi-paper tray, and open the paper supporter.

  • Page 44: Cable Connect

    3. Set up Oki Data CONFIDENTIAL 3.5.2 Cable connect Connect the power cord. Power condition Note! Confirm that the power switch is turned to OFF " ". (1) Insert the power cord into the printer. • Keep the following items.

  • Page 45: Turn The Power Off

    3. Set up Oki Data CONFIDENTIAL Turn the power off. When you do not use the printer for long time Note! If you turn off the power without properly shutting down, it may cause Please explain to the customer about the following items.

  • Page 46: Optional Part Installation And Confirmation

    3. Set up Oki Data CONFIDENTIAL 3.5.3 Optional part installation and confirmation (1)-2. Install the optional tray unit to the printer. Note! Because the weight of the printer body is approximately 28kg, it needs (1) Installation of the optional tray unit (second/ third tray) more than two adults to lift it up.
  • Page 47 For Windows 2000, click on [start] => [Settings] => [printers]. Click the [C711(PS)] icon with right- c l i ck bu t t o n o n yo u r m o u s e a n d Note! If the content of [tray 2] or [tray 3] is not displayed, reinstall the second tray choose the [Properties].
  • Page 48 Double-click [Applications] for hard disk => [utility] => [print setting utility] ([Applications] => [Utility] => [print Click [C711(**)] (** is PCL or PCL center] in Mac OS X) XPS (printer driver type)) icon with right-click button on your mouse and Select [C711], click [Show info] and choose [Properties].
  • Page 49 3. Set up Oki Data CONFIDENTIAL (2) Installation of Duplex unit (2)-3. Install Duplex Unit This unit is used for printing on two sides of paper. Insert the Duplex unit into the lower part on the back of the printer as far as it will go.
  • Page 50 +512MB (768MB) Open the multi-purpose tray. Notes! • The operation cannot be guaranteed when using an unspecified product. Please use OKI product. • It is recommended to add 256MB optional memory when long size printing. • The slot for memory is one slot.
  • Page 51 3. Set up Oki Data CONFIDENTIAL (3)-3. Remove the side cover. (3)-4. Install the memory. Loose the screw (one place). Discharge any static electricity by Remove the side cover. touching a grounded metal object before taking the memory out of the Pull it outward to remove while holding the package.
  • Page 52 3. Set up Oki Data CONFIDENTIAL (3)-5. Install the side cover. (4) Install the SD memory card. Install the side cover. Fix the side cover with the screw. (one Note! Be careful that the font cannot be downloaded. place) Close the top cover and front cover.
  • Page 53 3. Set up Oki Data CONFIDENTIAL (4)-2. Open the top cover and front cover. (4)-3. Remove the side cover. Loose the screw (one place). Press down the OPEN button, and open the top cover. Remove the side cover. Pull it outward to remove while holding the upper edge of the side cover to lift.
  • Page 54 3. Set up Oki Data CONFIDENTIAL (4)-7. Print the setting content and confirm if the SD memory card is installed Press the SD memory card until it clicks. properly. (4)-5. Install the side cover. Print the setting content with following the procedure in chapter 3.6.
  • Page 55 For Windows 2000, click on [start] choose [Properties]. => [Settings] => [printers]. Choose [get infor mation from Click the [C711(PS)] icon with printer] in [Device options] tab. For right-click button on your mouse (For Windows XP) USB connection, select the option and choose the [Properties].
  • Page 56 => [utility] => [print setting utility] ([Applications] => [Utility] => [print center] in Mac OS X) Select [C711], click [Show info] and open [printer info]. Choose [installable options]. Select the [SD Memor y Card] option, and click [Apply].

  • Page 57: Setting Content Print (Configuration)

    3. Set up Oki Data CONFIDENTIAL 3.6 Setting content print (Configuration) To confirm the printer operates normally, please print the [Configuration]. (C711n sample) (1) Set A4 paper in tray. (2) Press the button for several times so that [Print Information] is displayed, and press down the button.

  • Page 58: Connecting Method

    3. Set up Oki Data CONFIDENTIAL 3.7 Connecting method <USB connection> Connect the computer to the printer. Note! Please refer to user’s manual for operation environment. (1) Insert the USB cable into the USB interface connector of printer. (2) Insert the USB cable into the USB interface connector of computer.
  • Page 59 3. Set up Oki Data CONFIDENTIAL < Ethernet cable connection> < Parallel connection> Note! Refer to user’s manual for operation environment. Prepare for Parallel cable Note! The parallel cable is not included in printer. Provide it for special user. Prepare for Ethernet cable Note! The Ethernet cable and Hub is not included in printer.

  • Page 60: User Used Paper Confirmation

    3. Set up Oki Data CONFIDENTIAL 3.8 User used Paper confirmation Load the paper used by user, set the media type/weight, print the setting content/demo, and confirm if the toner is chipped off. settings of control panel [Thickness of Media weight...

  • Page 61: Component Replacement

    Oki Data CONFIDENTIAL Component replacement In this chapter, the procedures for replacement of part and assembly and unit are described. The replacement procedure is described by removal of the parts. Please install the new parts with following the replacement procedure in reverse order.

  • Page 62: Precautions On Component Replacement

    4. Component replacement Oki Data CONFIDENTIAL 4.1 Precautions on component replacement (1) Remove the AC cord and the interface cable before replacing the parts. (2) Do not disassemble it if the printer works normally. (a) Remove the AC cord according to the following procedure.

  • Page 63: Maintenance Tool

    4. Component replacement Oki Data CONFIDENTIAL [Maintenance tool] The required tools for using the maintenance utility are shown in Table 4-1-2. The required tools for replacing the PCB and the unit are shown in Table 4-1-1. Table 4-1-2 required tools...

  • Page 64: Method Of Component Replacement

    4. Component replacement Oki Data CONFIDENTIAL 4.2 Method of component replacement In this chapter, the replacement of parts and assemblies is described by the disassemble (3) Rotate the lock lever (blue, 2 places) of the belt unit in the direction of arrow figures.

  • Page 65: Fuser Unit

    4. Component replacement Oki Data CONFIDENTIAL 4.2.2 Fuser unit 4.2.3 Left side cover (1) Open the top cover. (1) Open the top cover. (2) Push up the fix lever of fuser unit in the direction of arrow, and remove the fuser (2) Open the feeder unit.

  • Page 66: Right Side Cover

    4. Component replacement Oki Data CONFIDENTIAL 4.2.4 Right side cover 4.2.5 Faceup tray (1) Open the top cover. (1) Draw out the Duplex unit (2) Open the feeder unit. (2) Open the faceup tray in the direction of arrow, and unlock the left and right pins while bending.

  • Page 67: Rear Cover

    4. Component replacement Oki Data CONFIDENTIAL 4.2.6 Rear cover 4.2.7 LED Assy/ LED Assy spring (1) Open the faceup tray. (1) Open the top cover (2) Remove the two screws (silver, No:42920406). (2) After removing the cable, as shown in fig 2, push the LED assy tightly in the direction of arrow.

  • Page 68: Control Pcb

    4. Component replacement Oki Data CONFIDENTIAL 4.2.8 Control PCB ID-FAN Cable Stack Full Sensor Cable RFID Cable ID Motor Cable MPT Clutch, Regist Clutch (1) Open the top cover. Control Panal Paper Size Sensor Cable Toner (2) Remove the right side cover. (See section 4.2.4)

  • Page 69: Top Cover Assy

    4. Component replacement Oki Data CONFIDENTIAL 4.2.9 Top cover Assy (1) Remove the left side cover. (See section 4.2.3) (2) Remove the right side cover. (See section 4.2.4) (3) Remove the rear cover. (See section 4.2.6) (4) Remove the plate shield and take the control PCB out. (See section 4.2.8)

  • Page 70: Top Cover

    4. Component replacement Oki Data CONFIDENTIAL 4.2.10 Top cover 4.2.11 Control panel Assy (1) Remove the top cover Assy. (See section 4.2.9) (1) Open the top cover. (2) Remove ten screws (Black, No:42932708), and remove the top cover (2) Insert the minus driver into the upper side of the slit (3 places) to disengage the...

  • Page 71: Board Prg/ Lcd

    4. Component replacement Oki Data CONFIDENTIAL 4.2.12 Board IBG/ LCD (1) Remove the control panel Assy. (See section 4.2.11) (2) Remove the screws (black, No:42932708) (2 places), remove the connector and cable of LCD and remove the Board IBG (3) Remove the screws (black, No:42932708)

  • Page 72: Frame Panel Assy

    4. Component replacement Oki Data CONFIDENTIAL 4.2.13 Frame panel Assy (8) Remove the lever lock , compression spring , torsion spring , button switch , cable Assy from the frame panel (1) Open the top cover. (2) Open the feeder unit.

  • Page 73: Low Voltage Power Supply/Low Voltage Fan/ Hopping Motor/ Fuse Motor

    4. Component replacement Oki Data CONFIDENTIAL 4.2.14 Low voltage power supply/Low voltage FAN/ Hopping motor/ Fuse motor Warning Risk of Electric Shock There is a risk of electric shock during replacement of the low voltage power supply. Use insulating gloves or avoid direct contact with any conducting part of the power supply, and caution should be exercised during replacement.

  • Page 74: Guide Eject Assy/ Color Regist Assy/ Board-Pry

    4. Component replacement Oki Data CONFIDENTIAL 4.2.15 Guide eject Assy/ Color regist Assy/ Board-PRY (1) Remove the left side cover, right side cover, rear cover, top cover Assy. (See section 4.2.3, 4.2.4, 4.2.6, 4.2.9) (2) Remove the control PCB and low-voltage power supply. (See section 4.2.8, 4.2.14(3))

  • Page 75: Fan(Fuser) / Belt Motor/ High-Voltage Board/Cover Open Switch

    4. Component replacement Oki Data CONFIDENTIAL 4.2.16 FAN(Fuser) / Belt motor/ High-voltage board/ 4.2.17 MPT Assy Cover open switch (1) Open the MPT Assy (1) Remove the left side cover. (See section 4.2.3) (2) Remove the stoppers (2 places) while pushing the arms (2 places) on MPT...

  • Page 76: Cover Assy Front/ Board-Rsf/Mpt Hopping Roller/Frame Assy Separator/ Feeder Assy Regist

    4. Component replacement Oki Data CONFIDENTIAL 4.2.18 Cover Assy front/ Board-RSF/MPT hopping roller/ Frame Assy separator/ Feeder Assy regist (1) Open the top cover. (2) Remove the plate shield and remove the connector. (See section 4.2.8) (3) Disengage the claws of stay L (4) Remove the motor cover.

  • Page 77: Board-Prz/ Liftup Motor/ Hopping Motor//Paper End Sensor/Hopping Sensor

    4. Component replacement Oki Data CONFIDENTIAL 4.2.19 Board-PRZ/ Liftup motor/ Hopping motor/ Paper end sensor/ Hopping sensor ×10 (1) Remove the left side cover, right side cover, rear cover, top cover unit, feeder Assy regist. (See section 4.2.3, 4.2.4, 4.2.6, 4.2.9, 4.2.18) ViewA (2) Remove the control PCB.

  • Page 78: Feed Roller

    4. Component replacement Oki Data CONFIDENTIAL 4.2.20 Feed roller (1) Remove the cassette. (2) Remove the latch and remove the feed roller (2 pieces) . ×4 E Ring (RE3-SK) Side plate Assy Latch 78 / 44205401TH Rev.1...

  • Page 79: Shaft Eject Assy (Fu)/ Shaft Eject Assy

    4. Component replacement Oki Data CONFIDENTIAL 4.2.21 Shaft eject Assy (FU)/ Shaft eject Assy(FD/ Eject sensor (1) Remove the eject Assy. (See section 4.2.15) (2) Disengage the claws (2 places), and disassemble the Assy into guide eject lower and guide eject upper...

  • Page 80: Oiling Spots

    4. Component replacement Oki Data CONFIDENTIAL 4.3 Oiling spots This chapter shows the oiling spots. Do not oil the other spots that are not shown here. It is not necessary to inject the machine-oil during disassembling. However, please add the specified oil when you wipe the oil off.
  • Page 81 4. Component replacement Oki Data CONFIDENTIAL 44259301PA Gear Assy.-HP -1 44259101PA Plate-Assy.-Side R EM-30L Class C Apply a normal amount of MOLYKOTE (EM-30L) to the Holder-Gear-A whole circle of hatched areas. EM-30L Class C Apply a normal amount of MOLYKOTE (EM-30L) to the whole circle of hatched areas.
  • Page 82 4. Component replacement Oki Data CONFIDENTIAL -2 44259101PA Plate-Assy.-Side R -3 44259101PA Plate-Assy.-Side R EM-30L Class C Grease prohibition at the posts Apply a normal amount of MOLYKOTE (EM-30L) to the end surface. Grease prohibition Grease prohibition at the gears...
  • Page 83 4. Component replacement Oki Data CONFIDENTIAL -4 44259101PA Plate-Assy.-Side R -5 44259101PA Plate-Assy.-Side R EM-30L Class C EM-30L Class C Apply a normal amount of MOLYKOTE (EM-30L) to the hatched area. Apply a normal amount of MOLYKOTE EM-30L Class C (EM-30L) to bearing portion.
  • Page 84 4. Component replacement Oki Data CONFIDENTIAL 43074904PA Plate-Assy.-Side-L 42071401PA Holder Assy.-Regist-L EM-30L Class C EM-30L Class A Apply a normal amount of MOLYKOTE (EM-30L) to the gear tooth tops. Apply a small amount of MOLYKOTE (EM-30L) to the hatched areas.
  • Page 85 4. Component replacement Oki Data CONFIDENTIAL 44261901PA Feeder Assy.-Regist 44286901PA Fuser-Assy EM30L Class C HP-300 Class C Apply a normal amount of MOLYKOTE (EM-30L) to the hatching Apply a normal amount of HP-300 to the hatching areas. areas (Shaft). Roller-Pressure...
  • Page 86 4. Component replacement Oki Data CONFIDENTIAL 44263501PA Guide-Assy. -Eject-U -1 44257901PA Printer Unit-PX757 EM-30L Class C EM-30L Class C EM-30L Class C Apply a normal amount of Apply a normal amount of MOLYKOTE (EM-30L) Apply a normal amount of MOLYKOTE MOLYKOTE (EM-30L) to to the tips of terminal.
  • Page 87 4. Component replacement Oki Data CONFIDENTIAL -2 44257901PA Printer Unit-PX757 44342001PA Belt-Assy EM-30L Class A EM-30L Class C Apply a small amount of MOLYKOTE Apply a normal amount of MOLYKOTE (EM-30L) to (EM-30L) to the inside of Bearing-TR (Belt). EM-30L Class C the hatched areas.
  • Page 88 4. Component replacement Oki Data CONFIDENTIAL 43917501PA Sensor Assy. -Color Regist 43081301PA Roller-Assy. -Idle(FD) Plate-Sensor-C.Regist EM-30L Class A Apply a small amount of MOLYKOTE (EM30-L) Exploded View to the hatched areas (Both side, 8 places). Method of amount grease The surface of Cover-Sensor-C.Regist Gear Assy.-Shutter...
  • Page 89 4. Component replacement Oki Data CONFIDENTIAL 43301601PA Roller-Assy. -BIAS(FU)C -1 43894903PA Cassette-Assy-PX757 Method of amount grease EM-30L Class S After assemble to , apply a minimum amount of MOLYKOTE (EM-30L) to the sliding portions of (the hatched areas). Not allowed to stain the area with grease.
  • Page 90 4. Component replacement Oki Data CONFIDENTIAL -2 43894903PA Cassette-Assy-PX757 90 / 44205401TH Rev.1...

  • Page 91: Maintenance Menu

    Oki Data CONFIDENTIAL Maintenance Menu Adjustment of this printer can be performed from the Maintenance Utilities by entering the corresponding menu from the keyboard of the operator panel. This printer contains the maintenance menu in addition to the normal operation menus. Select an appropriate menu in accordance with the objective of adjustment.

  • Page 92: System Maintenance Menu (For Maintenance Engineer)

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.1 System maintenance menu (for maintenance engineer) While pressing the MENU+ and MENU- keys, turn on the power to enter the maintenance menu. Item Value Category Function (1st Line) (2nd Line) The menu indications are shown in English only regardless of the destination of the printer.
  • Page 93 5. Maintenance Menu Oki Data CONFIDENTIAL Item Value Category Function (1st Line) (2nd Line) Change Changes the password. When the ENTER switch is pressed after entering Password in this menu, the messages "NEW PASSWORD" and "VERIFY PASSWORD" are displayed enabling user to enter a new password.

  • Page 94: Maintenance Utilities

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.2 Maintenance Utilities The maintenance utilities enables user to perform the adjustment shown in Table 5-2. Maintenance Operation on the Utilities operator panel (Item Details of the maintenance utilities are available in the following documents.
  • Page 95 5. Maintenance Menu Oki Data CONFIDENTIAL Maintenance Operation on the Maintenance Operation on the Utilities operator panel (Item Utilities operator panel (Item Item Adjustment contents Operation number corresponds Item Adjustment contents Operation number corresponds Manual item to that of the...

  • Page 96: Maintenance Menu Functions

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.3 Maintenance menu functions 5.3.1 Self-diagnostic mode (1) How to select the menu items LEVEL0 Menu items can be selected by long pressing of [BACK] or XXXX [ONLINE], or by short pressing of [MENU+] or [ONLINE].
  • Page 97 5. Maintenance Menu Oki Data CONFIDENTIAL (1) How to select the menu items Menu items can be selected by pressing either [MENU+] or [MENU-] key, and executed by pressing [ENTER]. LEVEL1 XXXXX XXXXX Menu items can be entered by pressing of [ENTER] or [BACK], and can be selected by pressing of [MENU+] or [MENU-].

  • Page 98: Ordinary Self-Diagnostic Mode (Level 1)

    5.3.1.2 Ordinary self-diagnostic mode (level 1) 5.3.1.2.1 How to enter the self-diagnostic mode (level 1) Note! For C711, password is required to enter the system maintenance menu Menu items of the ordinary self-diagnostic mode are shown below. mode. Refer to Table 5-1 (C711)

  • Page 99: Switch Scan Test

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.3.1.3 Switch scan test This self-diagnostic menu is used to check the entry sensor and the switch. Enter the self-diagnostic mode (level 1) and press the MENU+, MENU- key TONER SNS C TONER SNS M until "SWITCH SCAN"...
  • Page 100 5. Maintenance Menu Oki Data CONFIDENTIAL Table 5-3 SWITCH SCAN details <Item having no function> Asterisk mark (*) is displayed in the lower row of display area. * 1: “L” is displayed when the cover is opened. Display area, upper row...

  • Page 101: Motor Clutch Test

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.3.1.4 Motor clutch test This self-diagnostic menu is used to test the motor and clutch. 1. Enter the self-diagnostic mode (level 1) and press the MENU+, MENU- key until Color registration (REGIST) shutter "SWITCH SCAN" is displayed in the upper row of the display area.
  • Page 102 5. Maintenance Menu Oki Data CONFIDENTIAL Table 5-4 Unit name display Drive restriction condition Remarks ID MOTOR To be driven when all of the ID (K/Y/M/C) are − removed. BELT MOTOR To be driven when all of the ID (K/Y/M/C) are −...

  • Page 103: Test Print

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.3.1.5 Test print Display Setting value Function PRINT EXECUTE – Pressing the ENTER key starts print/Pressing the This self-diagnostic menu is used to print the test pattern that is built inside PU. Other test CANCEL key terminates print.
  • Page 104 5. Maintenance Menu Oki Data CONFIDENTIAL While the message "PRINT EXECUTE" that is set by the operation specified in step 2 is being displayed, press the ENTER key and the test print is executed with the setting value that has been set by steps 2 and 3.
  • Page 105 5. Maintenance Menu Oki Data CONFIDENTIAL • During printing, the following messages are displayed. • Displays are switched by pressing the MENU+ key. P=*** ETMP=***UTMP=*** W=*** REG=****EXT=*** P : Number of test print copies (unit: copies) ETMP : Hopping motor constant speed correction parameter...
  • Page 106 5. Maintenance Menu Oki Data CONFIDENTIAL • Displays are switched by pressing the MENU+ key. TR1:k**y**m**c** TR2:k**y**m**c** TRl : Transfer voltage parameter VTR1 table ID number [unit: HEX) TR2 : Transfer voltage parameter VTR2 table ID number [unit: HEX) • Displays are switched by pressing the MENU+ key.

  • Page 107: Color Registration Correction Test

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.3.1.6 Color registration correction test When the [CANCEL] key is pressed while test is in progress (while the [ON LINE] lamp is lighting), the screen returns to the state of step 2. This self-diagnostic menu item is used for the color registration error adjustment and to <<During execution of REG ADJ RESULT>>...

  • Page 108: Density Correction Test

    5. Maintenance Menu Oki Data CONFIDENTIAL Repeat steps 2 and 3 as required. 5.3.1.7 Density correction test Pressing the [BACK] terminates the test. (Returns to the status of step 1.) This self-diagnostic menu item is used to test the density correction function of a printer, Color registration correction test items and to refer to result of the test execution.
  • Page 109 5. Maintenance Menu Oki Data CONFIDENTIAL When the [CANCEL] key is pressed while test is in progress (while the [ON Pressing the [BACK] key terminates the test. (Returns to the status of step 1.) LINE] lamp is lighting), the screen returns to the state of step 2.

  • Page 110: Consumable Item Counter Display

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.3.1.8 Consumable item counter display Display area, Display area, Format Unit Details upper row lower row This self-diagnostic menu is used to display the consumption status of the consumable K-STC MODE ********TIMES Times Number of print dot counts of the items.

  • Page 111: Number Of Print Copies Counter Display

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.3.1.9 Number of print copies counter display 5.3.1.10 Switching between the Factory mode and the Shipping mode This self-diagnostic menu is used to display status of the number of copies of a printer. This self-diagnostic menu item is used to switch between the Factory mode and the Shipping mode.

  • Page 112: Self-Diagnostic Function Setting

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.3.1.11 Self-diagnostic function setting Operation at the Display Setting value Function setting value This self-diagnostic menu is used to set valid/invalid of the error detection by the various ID UNIT ENABLE Checks Valid/Invalid of ID installation check sensors.

  • Page 113: Led Head Serial Number Display

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.3.1.12 LED head serial number display 5.3.2 Various prints with the printer as a standalone unit This self-diagnostic menu item is used to check whether the downloaded LED head data Menu map print matches the serial number of the actual LED head.

  • Page 114: Functions Of Keys At Power On

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.3.3 Functions of keys at power on Functions of the respective keys when the printer power is turned on are displayed below. Each of the following keys becomes valid if the key is kept pressed until "RAM Check" is displayed in the upper row of LCD and the several asterisk (*) marks are displayed in the lower row.

  • Page 115: Setups Upon Completion Of Part Replacement

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.4 Setups upon completion of part replacement 5.4.1 Precautions when replacing the CU/PU board The adjustments that are required upon completion of part replacement are described below. Replacement parts Adjustment contents W h e n a c c e s s t o t h e E E P RO M o f t h e b o a r d t o r e m ove i s p o s s i bl e.
  • Page 116 5. Maintenance Menu Oki Data CONFIDENTIAL When access to the EEPROM of the board to remove is impossible. (2) Switching to the Shipping mode (Maintenance Utilities Operation Manual section 2.4.1.1.10.4) If the SERVICE CALL 104 [Engine EEPROM Error] or 40 [EEPROM Error] is...

  • Page 117: Density Control Manual Setting

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.5 Density control manual setting When a printer is shipped from the factory, the automatic density correction mode has been set in "Automatic". If a printer is used after the density correction mode is set to "Manual", density may change during usage of a printer.

  • Page 118: Printer Boot Menu List

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.6 Printer boot menu list While pressing the SET button, turn on the power to display the Boot Menu. Category Item Setting value Function Security Job Limitation Off Limits the job to accept. The encrypted Memo To display the Boot Menu, entry of password is required.
  • Page 119 5. Maintenance Menu Oki Data CONFIDENTIAL Category Item Setting value Function Storage Check File Execute Resolves the un-match between the actual (free) Setup System space and displayed free space of file system, and recovers the control data (FAT information.) Check All...

  • Page 120: Periodic Maintenance

    Oki Data CONFIDENTIAL Periodic Maintenance 6.1 Cleaning ..................121 6.2 How to clean the LED lens array ..........122 6.3 How to clean the pickup roller ............124 6.4 How to clean inside of printer ............125...

  • Page 121: Cleaning

    6. Periodic Maintenance Oki Data CONFIDENTIAL 6.1 Cleaning Clean inside and outside of the printer with clean dry cleaning cloth and small vacuum cleaner (hand cleaner) as required. Note! Be careful not to touch the image drum terminals, the LED lens array and the LED head connectors.

  • Page 122: How To Clean The Led Lens Array

    6. Periodic Maintenance Oki Data CONFIDENTIAL 6.2 How to clean the LED lens array Perform cleaning of the LED head. If the white banding, white stripe (white drop-out, light printing) in the vertical direction occurs on the print surface, clean the LED lens array.
  • Page 123 6. Periodic Maintenance Oki Data CONFIDENTIAL (3) Wipe the lens surface (at the four positions) of the LED head with soft tissue paper gently and lightly. Note! Do not use the solvents such as methyl alcohol or thinner for cleaning the LED head lens because they can damage the LED head.

  • Page 124: How To Clean The Pickup Roller

    6. Periodic Maintenance Oki Data CONFIDENTIAL 6.3 How to clean the pickup roller If the vertical banding in the vertical direction occurs on the print surface, clean the pickup (3) Clean the separation roller of the paper tray with a clean cloth wrung out roller.

  • Page 125: How To Clean Inside Of Printer

    6. Periodic Maintenance Oki Data CONFIDENTIAL 6.4 How to clean inside of printer Clean inside of the printer. (3) Remove the image drum cartridge. 1. Remove the four image drum cartridges and place them on a flat workbench. Toner can adhere to the metal shaft located in between the fuser and the cyan image 2.
  • Page 126 6. Periodic Maintenance Oki Data CONFIDENTIAL (4) Remove the fuser unit. (5) Clean the metal shaft with soft clean cloth or soft tissue paper. Personal injuries may occur. The fuser unit gets very hot. Be very careful not to touch the fuser unit with your hands.

  • Page 127: Troubleshooting And Repair Procedure

    Oki Data CONFIDENTIAL Troubleshooting and repair procedure 7.1 Before starting the repair work ..........128 7.2 Confirmation items before taking corrective action against abnormalities ................128 7.3 Precautions when taking corrective action against abnormality 128 7.4 Preparation for troubleshooting ..........128 7.5 Troubleshooting method ............129 7.6 Fuse check ................202...

  • Page 128: Before Starting The Repair Work

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.1 Before starting the repair work (1) Confirm the basic check/inspection points described in User’s Manual. (2) Get the information/status from client at the time when the trouble has occurred as much in details as possible (3) Create the status close to the user’s status when the trouble has occurred, and...

  • Page 129: Troubleshooting Method

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5 Troubleshooting method 7.5.1 LCD message list When a trouble occurs in this printer, perform troubleshooting by following the steps described below. Initializing Trouble occurs Panel display Inspection LINE Details (The mark indicates no...
  • Page 130 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Panel display Panel display Inspection Inspection LINE Details LINE Details (The mark indicates no (The mark indicates no lamp lamp lamp lamp message in the upper row.) message in the upper row.) Checking Sectors Displays that a sector of SD Card is being checked.
  • Page 131 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Normal Panel display Inspection Remedial LINE Details (The mark indicates no lamp measure Panel display lamp Inspection Remedial message in the upper row.) LINE Details (The mark indicates no lamp measure lamp message in the upper row.)
  • Page 132 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Panel display Panel display Inspection Remedial Inspection Remedial LINE Details LINE Details (The mark indicates no (The mark indicates no lamp measure lamp measure lamp lamp message in the upper row.) message in the upper row.)
  • Page 133 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Warning Panel display Inspection Remedial LINE Details Panel display (The mark indicates no lamp measure Inspection Remedial lamp message in the upper row.) LINE Details (The mark indicates no lamp measure lamp message in the upper row.)
  • Page 134 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Panel display Panel display Inspection Remedial Inspection Remedial LINE Details LINE Details (The mark indicates no (The mark indicates no lamp measure lamp measure lamp lamp message in the upper row.) message in the upper row.)
  • Page 135 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Panel display Panel display Inspection Remedial Inspection Remedial LINE Details LINE Details (The mark indicates no (The mark indicates no lamp measure lamp measure lamp lamp message in the upper row.) message in the upper row.)
  • Page 136 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Panel display Panel display Inspection Remedial Inspection Remedial LINE Details LINE Details (The mark indicates no (The mark indicates no lamp measure lamp measure lamp lamp message in the upper row.) message in the upper row.)
  • Page 137 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Panel display Panel display Inspection Remedial Inspection Remedial LINE Details LINE Details (The mark indicates no (The mark indicates no lamp measure lamp measure lamp lamp message in the upper row.) message in the upper row.)
  • Page 138 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Panel display Panel display Inspection Remedial Inspection Remedial LINE Details LINE Details (The mark indicates no (The mark indicates no lamp measure lamp measure lamp lamp message in the upper row.) message in the upper row.)

  • Page 139: Operator Alarm

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL If a printer detects an un-recoverable error, the following service call error is displayed on Inspection the LCD. Display on operator panel LINE Contents Code nnn lamp lamp Service call Change Paper in MPTray...
  • Page 140 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Inspection Inspection Display on operator panel LINE Contents Code nnn Display on operator panel LINE Contents Code nnn lamp lamp lamp lamp Change Paper in MPTray Blink Indicates that the paper size of the tray...
  • Page 141 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Inspection Inspection Display on operator panel LINE Contents Code nnn Display on operator panel LINE Contents Code nnn lamp lamp lamp lamp Install Paper Cassette Blink Indicates that paper feeding is not...
  • Page 142 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Inspection Inspection Display on operator panel LINE Contents Code nnn Display on operator panel LINE Contents Code nnn lamp lamp lamp lamp Open Cassette Blink Additional paper is detected when a Error...
  • Page 143 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Inspection Inspection Display on operator panel LINE Contents Code nnn Display on operator panel LINE Contents Code nnn lamp lamp lamp lamp Install Duplex Unit Blink Indicates that the Duplex unit is...
  • Page 144 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Inspection Inspection Display on operator panel LINE Contents Code nnn Display on operator panel LINE Contents Code nnn lamp lamp lamp lamp Check Data Indicates that an error has occurred Error Turn off power...
  • Page 145 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Table 7-1-2 Service Call Error List Display Cause Error details Remedial measure Display Cause Error details Remedial measure Restart the printer. Engine I/F Is the CU/PU assembly installed Re-install the Error. normally? CU/PU assembly 072: Error.
  • Page 146 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Display Cause Error details Remedial measure Display Cause Error details Remedial measure Service call Parameter Either EEPROM or Flash ROM Turn the printer Service call Environment Turn off the power integrity cannot read/write normally.
  • Page 147 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Display Cause Error details Remedial measure Display Cause Error details Remedial measure Service call The ID unit Is the ID unit installed normally? Re-install the ID Service call Thermistor Is the error message displayed?
  • Page 148 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Display Cause Error details Remedial measure Display Cause Error details Remedial measure Service call The backup Turn on the power Re-start the printer. CU program Illegal processing is executed After turning off...
  • Page 149 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Display Cause Error details Remedial measure Display Cause Error details Remedial measure Re-start the printer. Duplex Fan error inside the Duplex unit. Check if the Duplex Service call Detection An unsupported toner cartridge...

  • Page 150: Preparation For Troubleshooting

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2 Preparation for troubleshooting (8-4) Two-sided printing jam occurs during transporting paper inside the Duplex unit................170 LCD display error ....................149 (8-5) Paper is not supplied from the Duplex unit to the regist roller....170 (1-1) LCD does not display anything.

  • Page 151: Lcd Display Error

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (1) LCD display error Action to be taken Check item Check work at NG Memo For the numbers from through after name of the respective connectors, refer to section 7.5.2 (19) "Wiring diagram".

  • Page 152: Please Wait

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (1-4) "RAM check in progress" or "Initializing" display is kept appearing. Action to be taken Check item Check work at NG Action to be taken Check item Check work at NG (1-1-5) LSI operation check (1-4-1) Operator Panel display freezes.

  • Page 153: Abnormal Operations Of Printer After The Power Is Turned On

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (2) Abnormal operations of printer after the power is turned on (2-2) Abnormal sound is heard. (2-1) Any operation does not start at all. Action to be taken Check item Check work...

  • Page 154: Bad Odors Are Generated

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (2-3) Bad odors are generated. Action to be taken Check item Check work at NG Action to be taken Check item Check work at NG (2-2-3) Check the jumping phenomena of gear tooth. (Abnormal load of the consumable item)
  • Page 155 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (3) Paper Jams JAM location of occurrence outline chart When paper jams occur or paper remains in the printer, "Paper Jam", or "Paper Remain" is displayed on the operation panel. By pressing the Help button, a method to remove the paper is displayed, remove the...
  • Page 156 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (3) Return the tray to the printer. Open Cassette Open Cassette Paper Remain Paper Jam [Tray Name] [Tray Name] When the above messages are displayed. Tray1 is applied here as an example.
  • Page 157 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (4) Close the front cover. Open Cover Open Cover Paper Remain Paper Jam Front Cover Front Cover When the above messages are displayed. (1) Open the multipurpose tray. Front cover (5) Close the multipurpose tray.
  • Page 158 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (3) 2Uninstall the four image drum cartridges and put them on a flat table. Open Cover Open Cover Paper Remain Paper Jam Top Cover Top Cover When the above messages are displayed.
  • Page 159 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (b) If you do not see the top edge of paper Set the fuser unit in the printer body and fold backward the lock lever (2 levers). Pull up the jammed paper slowly while pushing the jam release lever of the fuser Lock lever of the fuser unit (Blue) unit.
  • Page 160 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (3) Close the Duplex unit cover. Check Duplex Unit Check Duplex Unit Paper Remain Paper Jam When the above messages are displayed. (1) Hold and press down the jam release lever of the Duplex unit to open the Duplex unit cover.

  • Page 161: Paper Feed Jam (Error Code 391: 1St Tray)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (3) Paper feed jam (error code 391: 1st tray) (3-2) Jam occurs immediately after the paper feed is started. (1st tray) (3-1) Jam occurs immediately after the power is turned on. (1st tray)
  • Page 162 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Action to be taken Action to be taken Check item Check work Check item Check work at NG at NG (3-2-4) Check the system connection (3-2-6) Check the system connection Paper feed motor Check the connection condition of the cable.

  • Page 163: Feed Jam (Error Code 380)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (4) Feed jam (error code 380) (4-2) Jam occurs immediately after the paper feed is started. (4-1) Jam occurs immediately after the power is turned on. Action to be taken Check item...

  • Page 164: Paper Feed Jam (Error Code 390: Multipurpose Tray)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (5) Paper feed jam (error code 390: Multipurpose tray) Action to be taken Check item Check work at NG (5-1) Jam occurs immediately after the power is turned on. (Multipurpose tray)

  • Page 165: Multipurpose Tray

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (5-2) Jam occurs immediately after paper feed is started. (Multipurpose tray) Action to be taken Check item Check work at NG Action to be taken Check item Check work at NG (5-2-3) Motor operation check...

  • Page 166: Paper Running Jam (Error Code 381:)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (6) Paper running jam (error code 381:) (6-2) Jam occurs immediately after a paper is taken into printer. (6-1) Jam occurs immediately after the power is turned on. Action to be taken...

  • Page 167: Jam Occurs In The Middle Of Paper Running Path

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (6-3) Jam occurs in the middle of paper running path. Action to be taken Check item Check work at NG Action to be taken Check item Check work at NG (6-2-4) Check the system connection...

  • Page 168: Jam Occurs Immediately After Paper Has Reached The Fuser

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (6-4) Jam occurs immediately after paper has reached the fuser. 7.5.2. (7) Paper unloading jam (error code 382) (7-1) Paper unloading jam occurs immediately after the power is turned on. Action to be taken...

  • Page 169: Paper Unloading Jam Occurs After A Paper Is Taken Into Printer

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Action to be taken Action to be taken Check item Check work Check item Check work at NG at NG (7-1-4) Check the system connection (7-2-2) Check condition of the mechanical parts...

  • Page 170: Paper Unloading Jam Occurs In The Middle Of Paper Running Path

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (7-3) Paper unloading jam occurs in the middle of paper running path. 7.5.2. (8) Two-sided printing jam (error code: 370, 371, 372, 373, 383) (8-1) Two-sided printing jam occurs immediately after the power is turned on.

  • Page 171: Two-Sided Printing Jam Occurs During Taking In The Paper Into Duplex Unit

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (8-2) Two-sided printing jam occurs during taking in the paper into Duplex unit. Action to be taken Check item Check work at NG Action to be taken Check item Check work at NG...

  • Page 172: Two-Sided Printing Jam Occurs During Transporting Paper Inside The Duplex Unit

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (8-4) Two-sided printing jam occurs during transporting paper inside the Duplex unit. 7.5.2. (9) Paper size error (error code 400) (9-1) Jam occurs when paper end is located near the IN1 sensor.

  • Page 173: Id Unit Up/Down Error (Service Call 140 To 143)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (10) ID unit Up/Down error (Service call 140 to 143) Action to be taken Check item Check work at NG (10-1) Error occurs during the Up movement of the ID unit...

  • Page 174: Fuser Unit Error (Error 170 To 177)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (11) Fuser unit error (error 170 to 177) Action to be taken Check item Check work at NG (11-1) Error occurs immediately after the power is turned on. (11-2-2) Temperature increase of fuser unit...

  • Page 175: Motor Fan Error (Error Code 122, 127, 128, 918, 051)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (12) Motor fan error (error code 122, 127, 128, 918, 051) (12-3) All fans of the printer do not rotate. (12-1) The low voltage power supply fan does not rotate immediately after the power is turned on.

  • Page 176: Print Speed Decreases

    (14-1-1) Duplex board Media Weight that is Check if the wrong Media Weight has been Correct the Duplex unit Check if the Duplex unit of C711 specification is Replace the specified for the print specified or not. Media Weight. being used or not.

  • Page 177: Led Head Cannot Be Recognized. (Error Code 131, 132, 133, 134)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (15) LED head cannot be recognized. (error code 131, 132, 133, 134) Action to be taken Check item Check work at NG (15-1) Service call 131 to 134 (LED HEAD Missing)

  • Page 178: Toner Cartridge Cannot Be Recognized. (Error Code 540, 541, 542, 543)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (16) Toner cartridge cannot be recognized. (error code 540, 541, 542, 543) Note! Toner sensor operation check method using the SWITCH SCAN function of the self-diagnostic mode. (16-1) Error caused by the consumable items.

  • Page 179: Error Caused By The Defective Mechanism

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (16-3) Error caused by the defective mechanism 7.5.2. (17) Fuse cut error (error codes 150 to 155) (17-1) Fuse cut error Action to be taken Check item Check work at NG Action to be taken...

  • Page 180: Humidity Sensor Error (Error Code 123)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (18) Humidity sensor error (error code 123) Action to be taken Check item Check work at NG (18-1) Humidity sensor error (18-1-2) Environment condition Action to be taken Check item Check work...
  • Page 181 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2. (19) Wiring diagram Duplex unit Cover open Front Bottom Cover open Internal Fuser sensor sensor sensor sensor switch thermistor FAN1 Printer main unit RFID Antenna Board-POL Fuser SNS03 SNS12 SNS4 DUPLEX clutch...

  • Page 182: Troubleshooting The Abnormal Images

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.3 Troubleshooting the abnormal images Color has faded-out and blurred entirely. (Refer to Figure 7-2A.) .......181 (1-1) Color are faded-out and blurred...............181 Stain on white print (Refer to Figure 7-2B.) ............182 (2-1) Stain on white print (Partial stain) .............182...

  • Page 183: Color Has Faded-Out And Blurred Entirely. (Refer To Figure 7-2A.)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.3.(1) Color has faded-out and blurred entirely. (Refer to Figure 7-2A.) Action to be taken Check item Check work at NG (1-1) Color are faded-out and blurred. (1-1-5) ID unit installation condition...

  • Page 184: Stain On White Print (Refer To Figure 7-2B.)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.3.(2) Stain on white print (Refer to Figure 7-2B.) (2-2) Stain on white print (overall stain) (2-1) Stain on white print (Partial stain) Action to be taken Check item Check work at NG...

  • Page 185: White Print (Refer To Figure 7-2C.)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.3.(3) White print (Refer to Figure 7-2C.) Action to be taken Check item Check work at NG (3-1) White print over entire page (3-1-3) High voltage terminal Action to be taken Check item...

  • Page 186: Black Banding/Black Streaking In Vertical Direction

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.3.(4) Black banding/black streaking in vertical direction 7.5.3.(5) Cyclic abnormality (Refer to Figure 7-2E.) (4-1) Thin vertical line (with color) (Refer to Figure 7-2D.) (5-1) Cyclic abnormality occurs in vertical direction Action to be taken...

  • Page 187: Heavy Color Registration Error

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.3.(6) Heavy color registration error 7.5.3.(7) Entirely black print (6-1) Display of the message "Color adjustment is in progress" appears only short time. (7-1) All black print over entire page Action to be taken...
  • Page 188 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Charge roller Ground Developer roller Toner feed roller Figure 7-3 188 / 44205401TH Rev.1...

  • Page 189: Network Troubleshooting

    Refer to section "7.5.4.1.5 Check the key exchange type of the certificate". (5) Check the Utilities. Check setting of the Check the setting items of the OKI LPR Utilities. Set the OKI LPR OKI LPR Utilities. Utilities setting items correctly.
  • Page 190 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4.1.1 Is the certificate created? 7.5.4.1.2 Is the SSL/TLS setting set to [ON]? Log-on in as the administrator, and select "Security" "Encryption (SSL/TLS)". Log-on in as the administrator, and select "Security" "Encryption (SSL/TLS)".
  • Page 191 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4.1.3 Check version number of the Web browser For Netscape Launch the web browser and select "HELP" "Netscape". Check version number of the Web browser in use. Recommended version is Netscape 6 and higher.
  • Page 192 "Standard". Either, upgrade the browser until it supports 128 bits (high encryption) or set the printer encryption strength to "Weak". Press the "Oki Device Setup" button, or alternately select "Setup" "Oki Device Setup", and open the setup screen. Input the administrator password and open the setup screen as an administrator.
  • Page 193 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Check the "Encryption Strength". A message prompting your confirmation will be displayed. Click "Yes". (NIC reboots in order to reflect the setup value.) If the printer is displayed in the printer list, the setup is complete with success.
  • Page 194 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Solution: Set the encryption strength to "Weak". How to change encryption strength with Telnet Note! Telnet cannot be used if it remains in the default setting. To change the encryption strength, Telnet must be set to Enable.

  • Page 195: Print Operation Is Not Possible

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4.2 Print operation is not possible 7.5.4.2.1 Check OS (Operating System) If print operation is not possible by using the encrypted IPP printer, check the followings. The IPP print (encryption) function is supported by Windows 2000, Windows XP, Windows 2003 Server and Windows Vista only.

  • Page 196: Cannot Create Certificate

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4.3 Cannot create Certificate 7.5.4.4 Installation of Certificate is not possible When Certificate cannot be created, the following causes are probable. Take an When installation of Certificate fails, the following causes are probable.
  • Page 197 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4.4.2 "Network card is initialized" Press the "General" tab of the displayed Certificate information, and press "Install Certificate" button. If network card is initialized (to default setup) while creation of Certificate of certifying authority is in progress (during the period starting from creation of CSR up until installation of Certificate), the setup information of the Certificate is deleted.

  • Page 198: Other Questionnaires

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4.5 Other questionnaires 7.5.4.5.6 The error message "The security certificate was issued by a company you have not chosen to trust. View the certificate to Other probable questionnaires are described below. determine whether you want to trust the certifying authority" is displayed.
  • Page 199 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Press the "General" tab of the displayed Certificate information, and press The "Certificate Import Wizard" is displayed. Install Certificate in accordance "Install Certificate" button. with the displayed procedure. Select "Automatically select the certificate store based on the types of certificate".
  • Page 200 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4.6 Restrictions when using Internet Explore 7 Solution : When "Continue browsing this site (not recommended)" is clicked on the warning screen, the web page will be displayed. Several restrictions are imposed when using Internet Explore 7. This is because security However, it has no effect on the web page function.

  • Page 201: Network Function Restrictions On Sleep Mode

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4.7 Network function restrictions on Sleep mode 7.5.4.7.3 Disabled discovery and setting options Network functions restrict the Sleep mode of each printer as follows. By using any of the following functions or protocols, printers in the Sleep mode cannot be...

  • Page 202: Fuse Check

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.6 Fuse check If the following error is issued, check the corresponding fuse of the CU/PU control board and high voltage power supply board. (Refer to Table 7-6.) Table 7-6 Fuse error...

  • Page 203: Paper Cassette Switches Versus Paper Size Correspondence Table

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.7 Paper cassette switches versus Paper size correspondence table Dial display size Bit No. TRAY1~3 Cassette: none Legal 14" Legal 13.5" Legal 13" Letter Executive Blank Blank Not used Not used Not used...

  • Page 204: Connection Diagrams

    Oki Data CONFIDENTIAL Connection diagrams 8.1 Resistance value check .............205 8.2 Parts location ................209 8.3 F/W version number ..............218...

  • Page 205: Resistance Value Check

    8. Connection diagrams Oki Data CONFIDENTIAL 8.1 Resistance value check Unit Electrical circuit diagram, connection Part outside view Resistance value Transport belt Between pin-1 and pin-2: 3.4Ω motor Between pin-3 and pin-4: 3.4Ω ID motor Across both ends of IP2 and IP3: 1Ω or less 205 / 44205401TH Rev.1...
  • Page 206 8. Connection diagrams Oki Data CONFIDENTIAL Unit Electrical circuit diagram, connection Part outside view Resistance value Between pin-1 and pin-2: 6.1Ω ID up/down motor Between pin-3 and pin-4: 6.1Ω Fuser unit motor Across both ends of IP1 and IP2: 1Ω or less 206 / 44205401TH Rev.1...
  • Page 207 8. Connection diagrams Oki Data CONFIDENTIAL Unit Electrical circuit diagram, connection Part outside view Resistance value Between pin-1 and pin-2: 3.4Ω Feed motor Between pin-3 and pin-4: 3.4Ω Both-sided print Between pin-1 and pin-2: 3.2Ω motor Between pin-3 and pin-4: 3.2Ω...
  • Page 208 8. Connection diagrams Oki Data CONFIDENTIAL Unit Electrical circuit diagram, connection Part outside view Resistance value Upper roller heater #1 Between pins -1 and -6: Several ohms to several ten ohms B - 6 Between pins -1 and -6: Several ohms to several ten ohms...

  • Page 209: Parts Location

    8. Connection diagrams Oki Data CONFIDENTIAL 8.2 Parts location (1) CU/PU PCB Component side C110 C105 HEAD3 HEAD2 HEAD1 HEAD0 R256 STKFL IDFAN RFID SDCARD OSC3 R240 FET2 R269 IC25 IC26 IC24 R204 R205 R206 IC22 R217 R218 IC23 CD1ZA2...
  • Page 210 8. Connection diagrams Oki Data CONFIDENTIAL Soldering side BF524 BF540 BF532 BF523 BF539 BF531 BF538 BF530 BF522 BF537 BF529 BF521 RM531 BF516 Q504 R631 R633 R632 RM534 BF515 BF528 BF520 BF536 BF514 BF519 RM528 BF535 BF527 BF513 RM530 Q502 BF534...
  • Page 211 8. Connection diagrams Oki Data CONFIDENTIAL (2) Rellay PCB Component side FUSER DENS Soldering side BFUSE BFUCUT 211 / 44205401TH Rev.1...
  • Page 212 8. Connection diagrams Oki Data CONFIDENTIAL (3) Both-sided Printing Control PCB Component side Soldering side MAIN1 D510 FET502 R542 R541 C535 R544 R543 R501 J520 R511 J503 R506 Q502 R557 R556 TR502 R555 R554 R553 R552 J514 C504 J505 R524...
  • Page 213 8. Connection diagrams Oki Data CONFIDENTIAL (4) Second Tray Control PCB Soldering side Component side MAIN1 D510 FET502 R542 R541 C535 R544 R543 MAIN2 R501 J520 R511 J503 R506 Q502 R557 R556 C519 TR502 C518 R555 C517 R554 C516 R553...
  • Page 214 8. Connection diagrams Oki Data CONFIDENTIAL (5) Control Panel PCB (6) Toner Low Sensor PCB SSNS R644 R540 R602 R603 R605 R606 Q502 R611 R612 R614 R613 R624 R625 R622 R620 R518 R623 R621 Q503 R648 R649 R618 R647 R619...
  • Page 215 8. Connection diagrams Oki Data CONFIDENTIAL (7) Entrance Sensor PCB (9) High-Voltage Power Supply PCB (8) Color Adjustment Sensor PCB TR-K TR-Y TR-M TR-C 215 / 44205401TH Rev.1...
  • Page 216 8. Connection diagrams Oki Data CONFIDENTIAL (10) Low-Voltage Power Supply PCB (11) ID unit ID unit (for consumable parts) Contactor point Fuse Toner Low Sensor PCB (PRZ PCB) Contactor point ID unit 216 / 44205401TH Rev.1...
  • Page 217 8. Connection diagrams Oki Data CONFIDENTIAL (12) Transfer belt unit Transfer belt unit (for consumable parts) Contactor point Fuse Relay PCB Contactor point Transfer belt unit Fuse 217 / 44205401TH Rev.1...

  • Page 218: F/W Version Number

    8. Connection diagrams Oki Data CONFIDENTIAL 8.3 F/W version number 8.3.1 ROM control number CU F/W NIC F/W PU F/W nameplate 44267202FY02 44267202FY03 44267202FY04 version Date Remarks number File File File Rev. Rev. fill-out Rev. Page Rev. Rev. version 2009.10.21 D1.01...

  • Page 219: Rom Version Check And Display

    8. Connection diagrams Oki Data CONFIDENTIAL 8.3.2 ROM version check and display 8.3.3 PCB Maintenance Indication Stamp (1) Perform the menu map printing and confirm that the F/W version number has The specified article numbers are stamped in the PCB Maintenance Indication column on been upgraded.

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