Oki MC760 Maintenance Manual
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Oki MC760 Maintenance Manual

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MC770 / MC780
MPS3537mc / MPS4242mc

Maintenance Manual

040513A

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Summary of Contents for Oki MC760

  • Page 1: Maintenance Manual

    MC770 / MC780 MPS3537mc / MPS4242mc Maintenance Manual 040513A...
  • Page 2 Copyright Information Copyright © 2013 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 Oki Data CONFIDENTIAL Document Revision History Corrected items Person in Rev.No Date Corrected items charge Person in Page Description of change Rev.No Date charge Page Description of change 2013-03-28 Issue P2E1 T. Asaba 45376001TH Rev.1...
  • Page 4 Oki Data CONFIDENTIAL PREFACE This manual provides an overview of method for maintaining the MC760/MC770/MC780. This manual is intended for maintenance staff. For more information about how to operate the MC760/MC770/MC780, please refer to User 's manual. Risk of explosion if battery is replaced by an incorrect type.

  • Page 5: Table Of Contents

    Oki Data CONFIDENTIAL Index 1. Configuration ................6 2.3.2 Document table structure ................43 2.3.2.1 Overview ....................43 1.1 System configuration .................... 7 2.3.2.2 Exposure block ..................44 1.2 The Configuration of printer .................. 8 2.3.2.3 Carraige-Assy drive mechanism ............44 1.3 Optional parts .......................
  • Page 6 Oki Data CONFIDENTIAL 4.2.15 Board MFH ....................82 5.2.1.11 Self-diagnostic function setting ............130 4.2.16 Hopping motor/ Fuse motor ................ 83 5.2.1.12 LED head serial number display ............131 4.2.17 Guide eject Assy/ Color regist Assy/ Board-IBY ......... 84 5.2.1.13 NVRAM parameter setting ..............131 4.2.18 FAN(Fuser) / Belt motor/ High-voltage board/ Cover open switch ....

  • Page 7: 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..............18...

  • Page 8: System Configuration

    1.Configuration Oki Data CONFIDENTIAL 1.1 System configuration Figure 1-1 represents the system configuration of the printer. Clutch solenoid Clutch ID UP BELT sensor Stacker full RFID PCB sensor Paper Option sensor Finisher Unit ADF Relay PCB K LED HEAD Cover...

  • Page 9: The Configuration Of Printer

    1.Configuration Oki Data CONFIDENTIAL 1.2 The Configuration of printer The parts in the MC760/MC770/MC780 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 MFP is shown in Fig 1-2.

  • Page 10: Optional Parts

    1. Configuration Oki Data CONFIDENTIAL 1.3 Optional parts (4) LCF The optional parts for this printer are shown as below. (1) Optional tray(second tray/ third tray/fourth tray*) *fourth tray:not support for Finisher model (2) Spacer (3) Caster Stand 45376001TH Rev.1...

  • Page 11: Specifications

    1. Configuration Oki Data CONFIDENTIAL 1.4 Specifications Fundamental specifications Category Item MC760 MC770 MC780 Operating environment During operation 10 °C to 32 °C,17 °C to 27 °C (Full color Category Item MC760 MC770 MC780 (temperature) print quality assurance temperature) Outside dimensions...
  • Page 12 1. Configuration Oki Data CONFIDENTIAL Printer section specifications Category Item MC760 MC770 MC780 Life Image Simplex Continuous:40K (Target) Category Item MC760 MC770 MC780 drum life 3P/J:30K Print width Print width A4 horizontal 1P/J:18K Engine speed (A4/LT) Monochrome 28/30ppm 36/37ppm 40/42ppm...
  • Page 13 1. Configuration Oki Data CONFIDENTIAL Scanner section specifications Category Item MC760 MC770 MC780 Paper thickness 1st/2nd/3rd/4th tray 64 – 220 g/m Item 64 – 250 g/m Scanner type Legal size flatbed with RADF Duplex 64 – 220 g/m Image sensor...
  • Page 14 1. Configuration Oki Data CONFIDENTIAL Network specifications Item Connection 10Base-T/100Base-TX/1000Base-T Communication protocol TCP/IP V4, TCP/IP V6, NetBIOS over TCP, Ether Talk, NetWare, LPR, Port9100, IPP, FTP, WSD-print, SMTP, POP3, HTTP, SNMPv1, SNMPv3, DHCP, DNS, DDNS, WINS, SLP, Bonjour, SNTP Supported browser Microsoft Internet Explorer Ver.

  • Page 15: Copy Function

    1. Configuration Oki Data CONFIDENTIAL Copy function Categories Specs Copy Resolution Scan: 300x300dpi / 300x600dpi / 600x600dpi Print: 600x600dpi / 600x1200dpi Document Flatbed/RADF A4, A5, A6, B5, Executive, Letter, Legal13, Size Legal13.5, Legal14, Folio Number of Copies 1 to 999 pages Collate(Sort) (No.
  • Page 16 1. Configuration Oki Data CONFIDENTIAL Fax specification Category Item MC770 MC780 Communication Realtime Tx Function Category Item MC770 MC780 Instant Dial Tx (Quick Memory TX) General Function Compatibility ITU-T G3 Realtime Page Print Applicable Network PSTN Reception Country Code Yes (26 Countries)
  • Page 17 1. Configuration Oki Data CONFIDENTIAL Category Item MC770 MC780 Category Item MC770 MC780 Security Function Junk Fax Protection Fax Local Print Activity Report Yes (Transmission /Reception Journal) Memory Only Yes (High security mode) Message Yes (Transmission Report) Function Reception Confirmation...

  • Page 18: Internet Fax

    1. Configuration Oki Data CONFIDENTIAL Internet Fax Category Item MC760 MC770 MC780 Security Junk Fax Function Protection Category Item MC760 MC770 MC780 Memory Only General Compatibility T.37 (Simple Mode) Reception Function T.37 (Direct SMTP Mode)* *by Service Code Setting ID Check TX...

  • Page 19: 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. (Less than 2m is recommended) 1.5.1.1 General of USB interface (Please use the shielded wire for the cable.)

  • Page 20: Specification Of Network Interface

    1. Configuration Oki Data CONFIDENTIAL (2) Cable 1.5.2 Specification of network interface Non-shield twisted-pair cable with RJ-45 connector (Category 6 is recommended) 1.5.2.1 General of network interface Spec. 1.5.2.3 Signal of network interface Network Protocol (1) 10/100Base-T TCP/IP sepc. Network layer ARP, IP, ICMP, IPv6, IPSec Pin No.

  • Page 21: Telephone Line Interface Specification

    1. Configuration Oki Data CONFIDENTIAL 1.5.3 Telephone Line Interface Specification 1.5.4 USB Host Interface 1.5.3.1 Outline of telephone Line Interface 1.5.4.1 Outline of USB Host Interface The machine will reliably communicate with distant stations over voice-level telephone (1) Basic Specification line.

  • Page 22: Specification Of Acc Interface

    1. Configuration Oki Data CONFIDENTIAL 1.5.5 Specification of ACC interface Connecting device Card reader (Option) Connector Printer side: USB A receptacle (female) Downstream port UBA-4R-D14C2-4D(LF)(SN) (JST Mfg. Co.,Ltd) or equivalent Cable side: USB A plug (male) Interface signals Contact No.

  • Page 23: Operating Instructions

    Oki Data CONFIDENTIAL Operating instructions 2.1 Electrophotographic processing mechanism .......23 2.2 Printing process ................27 2.3 Image Scanning process .............38...

  • Page 24: 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 25 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 26 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 27 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 28: 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 29 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 30 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 31 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 32 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 eject roller are driven by the DC motor as shown in 1.
  • Page 33 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 34 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 35 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 36 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 37 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 38 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 37 / 45376001TH Rev.1...

  • Page 39: Image Scanning Process

    2. Operating instructions Oki Data CONFIDENTIAL 2.3 Image Scanning process 2.3.1 Structure and process of RADF 2.3.1.2 Electrical configuration Electrical circuit configuration 2.3.1.1 Cross-section view This Scanner is controlled by the SU board(7SU). The ASIC mounted on the SU board(7SU) control the DC load devices such as motor, solenoid and clutch via the ADF Relation board(7RL), in dependance of the sensor signals and control signals from the CU board not to be shown in the below figure.

  • Page 40: Fundamental Operations

    2. Operating instructions Oki Data CONFIDENTIAL 2.3.1.3 Fundamental operations Overview of operation modes There are four operation modes that are executed by the MFP. The respective operation Drive force trasmission diagram modes are executed in accordance with the instructions given by the connected equipment The MFP is a document feed device of skim reading only.
  • Page 41 2. Operating instructions Oki Data CONFIDENTIAL → Normal direction feed paper and unload paper (single-sided document single sided print) operation Outline of document flow is shown below. Supplement : When a single-sided document is selected, this operation is performed regardless of the same size mixed documents or different sizes mixed documents.
  • Page 42 2. Operating instructions Oki Data CONFIDENTIAL Normal direction feed paper/Inverted unloading of paper (both-sided → document both sided print) operation Outline of document flow is shown below. Supplement : When a both-sided document is selected, this operation is performed regardless of the same size mixed documents or different sizes mixed documents.

  • Page 43: Document Detection

    2. Operating instructions Oki Data CONFIDENTIAL 2.3.1.4 Document detection Detection of final document The document set sensor (PI15) detect if the document that has started of the final document Document present/absent detection has passed the set sensor lever, the detection lever moves together with the light-shielding Document present/absent detection on the document tray is performed by document set plate so that the photo interrupter that has been shutting down the light, passes the light.

  • Page 44: Document Table Structure

    2. Operating instructions Oki Data CONFIDENTIAL 2.3.1.5 Jam detection 2.3.2 Document table structure Document jam is detected by the sensors shown in the illustration.Check timing of the 2.3.2.1 Overview document jam detection has already been memorized in the ROM of the sensor main PCB...

  • Page 45: Exposure Block

    2. Operating instructions Oki Data CONFIDENTIAL 2.3.2.2 Exposure block 2.3.2.3 Carraige-Assy drive mechanism Carriage-Assy drive mechanism Carriage-Assy performs the function of irradiating the lamp light uniformly over a document while moving its position. The carriage-Assy is driven by a belt which is driven by the FB motor. Scanner moves at the scan speed corresponding to the respective magnification ratios that are set with reference to...

  • Page 46: Set Up

    Oki Data CONFIDENTIAL Set up 3.1 Notes and precautions ..............46 3.2 Unpack method ................47 3.3 Setting method ................48 3.4 List of equipments and accessories ..........49 3.5 Assembling method ..............50 3.6 Setting content print (Configuration) ..........64 3.7 Connecting method ..............65 3.8 User used Paper confirmation .............69...

  • Page 47: 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 MFP, please pull out the power plug from the outlet and contact the customer center.It may cause ire.

  • Page 48: Unpack Method

    3. Set up Oki Data CONFIDENTIAL 3.2 Unpack method Personal injuries may occur. B e c a u s e t h e w e i g h t o f t h e M F P i s a p p r o x i m a t e l y 60kg(71kg:Finisher model) (in a state of packing), it needs more than three adults to lift it up.

  • Page 49: Setting Method

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

  • Page 50: 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 MFP.

  • Page 51: Assembling Method

    3. Set up Oki Data CONFIDENTIAL 3.5 Assembling method 3.5.1 Assemble the main body of the MFP (3) Peel off the protection tape (5 places) on the back of the MFP. Remove the protective materials. (1) Peel off the desiccant and the protection tape (three places) and pad on the MFP.
  • Page 52 3. Set up Oki Data CONFIDENTIAL (6) Open the scanner and press down the OPEN button, and open the top cover. (7) Remove the stopper (orange) when pressing down the lever of the fuser unit (blue) in the direction of arrow Note! If you do not use the MFP for a long time or transport it, please use the stopper.
  • Page 53 3. Set up Oki Data CONFIDENTIAL (2) Put the image drum cartridge on the newspaper etc, peel off the tape of Set the image drum cartridge. protection sheet and pull it out in the direction of the arrow. (1) Take the image drum cartridge (four) out slowly.
  • Page 54 3. Set up Oki Data CONFIDENTIAL (4) Return the image drum cartridge back to the MFP. (6) Close the top cover and scanner. Note! If the message of [%COLOR% Waste Toner Full.Replace Toner.] on the control panel doesn't disappear indeinitely, please make sure that the lever of the toner cartridge is fully moved in the direction of the arrow.
  • Page 55 3. Set up Oki Data CONFIDENTIAL (4) Place the paper in the cassette with the side to be printed facing down. Set the paper into the paper cassette. Note! • Place the paper with the top of the page nearest the paper cassette tab.
  • Page 56 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 57 3. Set up Oki Data CONFIDENTIAL Loading Documents on the ADF Loading Documents on the Document Glass (1) Load your documents face up on the ADF. (1) Lift and open the document glass cover. If your documents are portrait, load them with the top edge of the documents in irst.

  • Page 58: Cable Connect

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

  • Page 59: Turn The Power Off

    3. Set up Oki Data CONFIDENTIAL Turn the power off. When do not use the MFP 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 60: Optional Part Installation And Confirmation

    3. Set up Oki Data CONFIDENTIAL 3.5.3 Optional part installation and conirmation (1)-2. Install the optional tray unit to the MFP. Note! Because the weight of the MFP body is approximately 50kg, it needs more (1) Installation of the optional tray unit (second/ third/ fourth tray/ LCF) than three adults to lift it up.
  • Page 61 For Windows 2000, click on [start] => [Settings] => [printers]. Note! If the content of [tray 2] or [tray 3] is not displayed, reinstall the second tray Click [OKI MC780*¹(*²)] icon with unit. right-click button on your mouse and choose [Properties].
  • Page 62 Oki Data CONFIDENTIAL Open System Preferences and click [Print & Scan]. For Mac OS X Select [OKI-MC780], click [Options & Supplies]. When the optional device has been added into in Mac OS X before installing the Click [Driver]. printer driver, the device information is gotten automatically. However, if the printer Set the following options.
  • Page 63 3. Set up Oki Data CONFIDENTIAL <For e-STUDIO287CS/347CS/407CS> The printer driver setup for recognizing the option drawer unit is required. If the printer driver is not set up, please set up the printer driver completely referring to the user's manual (Setup) irstly, and then inish the following setting procedure.
  • Page 64 3. Set up Oki Data CONFIDENTIAL Open System Preferences and click [Print & Scan]. For Mac OS X Select [TOSHIBA e-STUDIO407CS], click [Options & Supplies]. When the optional device has been added into in Mac OS X before installing the Click [Driver].

  • Page 65: Setting Content Print (Configuration)

    3. Set up Oki Data CONFIDENTIAL 3.6 Setting content print (Configuration) To conirm the MFP operates normally, please print the [Coniguration]. (sample) (1) Set A4 paper in tray. (2) Press the USER FUNCTIONS button of display. (3) Press the LIST button of display.

  • Page 66: Connecting Method

    3. Set up Oki Data CONFIDENTIAL 3.7 Connecting method <USB connection> Connect the computer to the MFP. Note! Please refer to user’s manual for operation environment. (1) Insert the USB cable into the USB interface connector of MFP. (2) Insert the USB cable into the USB interface connector of computer.
  • Page 67 3. Set up Oki Data CONFIDENTIAL < Ethernet cable connection> Note! Refer to user’s manual for operation environment. Prepare for Ethernet cable Note! The Ethernet cable and Hub is not included in MFP. Provide the Ethernet cable and Hub for special user.
  • Page 68 3. Set up Oki Data CONFIDENTIAL < Telephone line cable connection> To connect to public telephone line (To connect to the telephone of the MFP) Connection of the telephone line cable is different in each country and location. Connect the MFP to suit to the environment of each installation location using the following Connect the telephone cable that is connected to the public telephone line (analog) diagram as reference.
  • Page 69 3. Set up Oki Data CONFIDENTIAL To connect to the Optical fiber (IP telephone) To connect to the telephone switch board (PBX), home telephone, or business phone Connect the telephone cable that is connected to the Optical iber (IP telephone) to the [LINE connector] of the MFP.

  • Page 70: 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 71: 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 72: 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 73: Maintenance Tool

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

  • Page 74: Method Of Component Replacement

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

  • Page 75: Fuser Unit

    4. Component replacement Oki Data CONFIDENTIAL 4.2.2 Fuser unit 4.2.3 Right side cover (1) Open the scanner and top cover. (1) Open the scanner and top cover. (2) Loose the two screws (silver, No:42920408) ① and two screws (black,No:42932710) ② .

  • Page 76: Left Side Cover

    4. Component replacement Oki Data CONFIDENTIAL 4.2.4 Left side cover 4.2.5 Scanner unit (1) Open the scanner and top cover. (1) Open the scanner and top cover. (2) Open the feeder unit. (2) Remove the right side cover.(See section 4.2.3) (3) Remove the claw ①...

  • Page 77: Faceup Tray

    4. Component replacement Oki Data CONFIDENTIAL 4.2.6 Faceup tray 4.2.7 Rear cover (1) Draw out the Duplex unit ① . (1) Open the faceup tray. (2) Open the faceup tray ② in the direction of arrow, and unlock the left and right (2) Remove the two screws (silver, No:42920406) ①...

  • Page 78: Led Assy/ Led Assy Spring

    4. Component replacement Oki Data CONFIDENTIAL 4.2.8 LED Assy/ LED Assy spring 4.2.9 CU/PU PCB/Low voltage power supply Warning (1) Open the scanner and top cover. Risk of Electric Shock (2) After removing the cable, as shown in fig 2, push the LED assy ① tightly in the direction of arrow.
  • Page 79 4. Component replacement Oki Data CONFIDENTIAL ⑥ ⑤ ⑦ ×8 ×2 ④ ③ ×4 ② ① ⑨ ×8 ⑧ ⑩ ×2 ⑪ CU PCB PU PCB 78 / 45376001TH Rev.1...

  • Page 80: Stay-R

    4. Component replacement Oki Data CONFIDENTIAL 4.2.10 Stay-R 4.2.11 Plate-Board-R Assy/Guide-Cable Power Low (1) Remove the right side cover. (See section 4.2.3) (1) Remove the right side cover. (See section 4.2.3) (2) Remove the Scanner. (2) Remove the stay-R Assy. (See section 4.2.10) (3) Remove the soft-absorber ①...

  • Page 81: Top Cover Assy

    4. Component replacement Oki Data CONFIDENTIAL 4.2.12 Top cover Assy (1) Remove the right side cover. (See section 4.2.3) (2) Remove the left side cover. (See section 4.2.4) (3) Remove the rear cover. (See section 4.2.7) (4) Remove the plate shield and take the CU/PU PCB out. (See section 4.2.9) (5) Remove the connectors of the stack full sensor cable and ID-FAN cable, remove the connector and the hanging RFID cable ①...

  • Page 82: Top Cover

    4. Component replacement Oki Data CONFIDENTIAL 4.2.13 Top cover 4.2.14 Frame Assy Top Front (1) Remove the top cover Assy. (See section 4.2.12) (1) Remove the right side cover. (See section 4.2.3) (2) Remove fifteen screws(black, No:42932708) ① , and remove the top cover ② .

  • Page 83: Board Mfh

    4. Component replacement Oki Data CONFIDENTIAL 4.2.15 Board MFH (1) Remove the Frame Assy Top Front. (See section 4.2.14) (2) Disengage the claws(2 places) on the of Board MFH ① and remove the Board MFH ① . 82 / 45376001TH Rev.1...

  • Page 84: Hopping Motor/ Fuse Motor

    4. Component replacement Oki Data CONFIDENTIAL 4.2.16 Hopping motor/ Fuse motor (1) Open the scanner and top cover. (2) Remove the plate shield and take the CU/PU PCB out. (See section 4.2.9) (3) Remove the Plate-Board-R-Assy.(See section 4.2.11) (4) Remove the two screws ① (silver, No:42920428) and connector, and take the low voltage FAN ②...

  • Page 85: Guide Eject Assy/ Color Regist Assy/ Board-Iby

    4. Component replacement Oki Data CONFIDENTIAL 4.2.17 Guide eject Assy/ Color regist Assy/ Board-IBY (1) Remove the left side cover, right side cover, rear cover, top cover Assy. (See section 4.2.4, 4.2.3, 4.2.7, 4.2.12) Claw ② (2) Remove the control PCB and low-voltage power supply. (See section 4.2.9) (3) Remove the connector of belt thermistor, remove the two torsion springs ①...

  • Page 86: Fan(Fuser) / Belt Motor/ High-Voltage Board/ Cover Open Switch

    4. Component replacement Oki Data CONFIDENTIAL 4.2.18 FAN(Fuser) / Belt motor/ High-voltage board/ 4.2.19 MPT Assy Cover open switch (1) Open the MPT Assy ① . (1) Remove the left side cover. (See section 4.2.4) (2) Remove the stoppers (2 places) while pushing the arms (2 places) on MPT (2) Remove the two screw ①...

  • Page 87: Cover Assy Front/ Board-Rsf/Mpt Hopping Roller/ Frame Assy Separator Feeder Assy Regist

    4. Component replacement Oki Data CONFIDENTIAL 4.2.20 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 4.2.9) (3) Disengage the claws of stay L and remove the Cover-Assy-front ① .

  • Page 88: Plate-Driver/ Shaft-Liftup/ Hopping Cover

    4. Component replacement Oki Data CONFIDENTIAL 4.2.21 Plate-Driver/ Shaft-Liftup/ Hopping cover (1) Remove the left side cover, right side cover, rear cover, top cover unit, feeder Assy regist. (See section 4.2.4, 4.2.3, 4.2.7, 4.2.12, 4.2.20) (2) Remove the control PCB. (See section 4.2.9) (3) Remove the guide cable Power Low, low-voltage power supply.

  • Page 89: Plate-Assy-Side R/ Plate-Assy-Side L

    4. Component replacement Oki Data CONFIDENTIAL 4.2.22 Plate-Assy-Side R/ Plate-Assy-Side L 4.2.23 Feed roller (1) Remove the plate driver,shaft-Liftup.(See section 4.2.21) (1) Remove the cassette. (2) Remove the three screws (silver, No:42920406) ① and remove the Plate-Assy- (2) Remove the latch and remove the feed roller (2 pieces) ① .

  • Page 90: Eject Sensor/Micro-Sw

    4. Component replacement Oki Data CONFIDENTIAL 4.2.24 Eject sensor/Micro-SW 4.2.25　Antenna (for wireless model only) (1) Remove the screw (silver, No:42920408) ① . (1) Remove the eject Assy. (See section 4.2.17) (2) Disengage the claws (2 places), and disassemble the Assy into guide eject lower ①...
  • Page 91 4. Component replacement Oki Data CONFIDENTIAL 4.2.26　Finisher (for finisher model only) (1) Open the Scanner and remove the two screws(black, No:42932708) ① . (2) Remove the cover connector ② by push the tab. (3) Disconnect the connector and remove the finisher unit ③ .

  • Page 92: Stapler (For Stapler Model Only)

    4. Component replacement Oki Data CONFIDENTIAL 4.2.27　Stapler (for stapler model only) (1) Remove the plate shield. (See section 4.2.9). (2) Remove the two screws (silver, No:42920406) ① and remove the Staple ② . 91 / 45376001TH Rev.1...

  • Page 93: Tray-Assy-Document/Cover-Adf-R

    4. Component replacement Oki Data CONFIDENTIAL (4) Push the portion A. (Concurrent to push the (3) ) 4.2.28　Tray-Assy-Document/Cover-ADF-R (1) Open the Cover-Assy-top-ADF. (2) Remove the Tray-Assy-Document ① by pull it in the direction arrow. Cover-assy-top-ADF (5) Remove the cover-ADF-R ② in the direction of the arrow.

  • Page 94: Adf-Unit

    4. Component replacement Oki Data CONFIDENTIAL (4) Remove the ADF-unit ③ by insert the flat-blade screwdriver to gap between 4.2.29　ADF-unit ADF-unit ③ and flatbed-unit with pull the cables out of the Frame-Base(ADF) and Hinge. (1) Remove the cover-ADF-R. (See 4.2.24) (2) Detach a connector ①...

  • Page 95: Sheet-Document / Paper-Weight-Assy / Spring-Pw-Adf

    4. Component replacement Oki Data CONFIDENTIAL <Attention of affix the sheet-document> 4.2.30　Sheet-document / Paper-weight-Assy / Spring-PW-ADF (1) Degrease the affix area of ADF-unit. (1) Open the ADF-unit. (2) Remove the peeling-off sheet. (2) Remove the sheet-document ① . (3) Set the sheet-document ① (see the figure below).

  • Page 96: Hinge-Assy-L / Hinge-Assy-R

    4. Component replacement Oki Data CONFIDENTIAL 4.2.31　Hinge-Assy-L / Hinge-Assy-R 4.2.32　ADF-Assy (1) Remove the three screws (black, No:42932708) ① and remove the hinge- (1) Remove the screw (silver, No:42920406) ① and remove the ADF board(7RL) ② . Assy-R ② . (2) Remove the four screws (black, No:42932706) ③ and remove the ADF-assy ④ .

  • Page 97: Guide-Retard / Roller / Motor / Clutch / Solenoid

    4. Component replacement Oki Data CONFIDENTIAL 4.2.33　Guide-Retard / Roller / Motor / Clutch / Solenoid/ Photo-sensor (1) Pull and remove Guide-Cable-ADF ① . Arrow A (2) Remove the E-type retaining ring ② and remove the clutch ③ . (3) Remove the three screws (black, No:42932706) ④ and remove the plate-motor- ADF ⑤...

  • Page 98: Guide-Assy-Retard

    4. Component replacement Oki Data CONFIDENTIAL 4.2.34　Guide-Assy-Retard 4.2.35　Flatbed-Unit (1) Remove the eight claws and remove the Guide-Retard(sub) ① . (1) Remove the five screws (black, No:42932706) ① and remove the cover- Bottom ② . (2) Remove the Cover-Retard(ADF) ② .

  • Page 99: Frame-Assy-Fb

    4. Component replacement Oki Data CONFIDENTIAL 4.2.36　Frame-assy-FB (1) Remove the five screws (silver, No:42920406) ① and remove the five screws (black, No:42932706) ② . (2) And remove the plate-shield-SU ③ . (3) Remove the all SU-board cables. (4) Remove the five screws (silver, No:42920406) ④ and remove the SU-board ⑤ .

  • Page 100: 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 101 4. Component replacement Oki Data CONFIDENTIAL 44259301PA Gear Assy.-HP -1 44259102PA Plate-Assy.-Side R EM-30L Class C Apply a normal amount of MOLYKOTE (EM-30LP) to the Holder-Gear-A whole circle of hatched areas. EM-30L Class C Apply a normal amount of MOLYKOTE (EM-30LP) to the whole circle of hatched areas.
  • Page 102 4. Component replacement Oki Data CONFIDENTIAL -2 44259102PA 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-30LP) to the end surface. Grease prohibition Grease prohibition at the gears...
  • Page 103 4. Component replacement Oki Data CONFIDENTIAL -4 44259101PA Plate-Assy.-Side R -5 44259101PA Plate-Assy.-Side R EM-30LP Class C EM-30LP Class C Apply a normal amount of MOLYKOTE (EM-30LP) to the hatched area. Apply a normal amount of MOLYKOTE EM-30LP Class C (EM-30LP) to bearing portion.
  • Page 104 4. Component replacement Oki Data CONFIDENTIAL 43074904PA Plate-Assy.-Side-L 42071401PA Holder Assy.-Regist-L EM-30LP Class C EM-30LP Class A Apply a normal amount of MOLYKOTE (EM-30LP) to the gear tooth tops. Apply a small amount of MOLYKOTE (EM-30LP) to the hatched areas.
  • Page 105 4. Component replacement Oki Data CONFIDENTIAL 44261901PA Feeder Assy.-Regist 44286901PA Fuser-Assy EM30LP Class C HP-300 Class C Apply a normal amount of MOLYKOTE (EM-30LP) to the hatching areas (Shaft). Apply a normal amount of HP-300 to the hatching areas. Roller-Pressure...
  • Page 106 4. Component replacement Oki Data CONFIDENTIAL 45269001PA Guide-Assy. -Eject-U -1 44257901PA Printer Unit-FX757 EM-30LP Class C Apply a normal amount of MOLYKOTE (EM-30LP) to the tips of terminal. Plate-Assy.-Side-L Plate-Contact-TR Shaft-Assy.-Eject(FD) Application range of grease EM-30LP Class C Apply a normal amount of MOLYKOTE (EM-30LP) to the whole circle of gear teeth.
  • Page 107 4. Component replacement Oki Data CONFIDENTIAL -2 44257901PA Printer Unit-FX757 44342001PA Belt-Assy EM-30LP Class A EM-30LP Class C Apply a small amount of MOLYKOTE Apply a normal amount of MOLYKOTE (EM-30LP) to (EM-30LP) to the inside of Bearing-TR (Belt). EM-30LP Class C the hatched areas.
  • Page 108 4. Component replacement Oki Data CONFIDENTIAL 43917501PA Sensor Assy. -Color Regist 43081301PA Roller-Assy. -Idle(FD) Plate-Sensor-C.Regist EM-30LP Class A Apply a small amount of MOLYKOTE (EM30-LP) 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 109 4. Component replacement Oki Data CONFIDENTIAL 43301601PA Roller-Assy. -BIAS(FU)C -1 43894903PA Cassette-Assy-FX757 Plate-Receive EM-30LP Class B Shaft-Liftup Apply a small amount of MOLYKOTE (EM-30LP) to sliding portions of sheet metal and shaft (the hatched area). Method of amount grease Plate-Receive...
  • Page 110 4. Component replacement Oki Data CONFIDENTIAL ⑭ 4537xxxxYA Scanner-Hinge -2 43894903PA Cassette-Assy-FX757 EM-30LP Class B Apply a small amount of MOLYKOTE (EM-30LP) to the hatched area.(2 palces) EM-D110 Class C Apply a normal amount of MOLYKOTE (EM-D110) to the hatched area.

  • Page 111: 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 112: System Maintenance Menu (For Maintenance Engineer)

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.1 Maintenance Utility The adjustments described in table 5-1 should be made by using Maintenance Utility. Section in Operation from Maintenance operator panel The following details the utility: Option Adjustment Utility (section in this...

  • Page 113: Maintenance Menu Functions

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.2 Maintenance menu functions 5.2.1 Self-diagnostic mode (1) How to select the menu items Menu items can be selected by pressing of [4] or [ ＊ ], or by LEVEL0 XXXX pressing of [2] or [8].
  • Page 114 5. Maintenance Menu Oki Data CONFIDENTIAL (1) How to select the menu items Menu items can be selected by pressing either [2] or [8] key, and executed by pressing [6]. LEVEL1 XXXXX XXXXX Menu items can be entered by pressing of [6] or [4], and can be selected by pressing of [2] or [8].

  • Page 115: Ordinary Self-Diagnostic Mode (Level)

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.2.1.2 Ordinary self-diagnostic mode (level 1) 5.2.1.2.1 How to enter the self-diagnostic mode (level 1) Menu items of the ordinary self-diagnostic mode are shown below. While pressing the [6] and [8] keys, simultaneously, turn on the power to enter...

  • Page 116: Switch Scan Test

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.2.1.3 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 [2], [8] key until "SWITCH SCAN" is displayed in the upper row of the display area. (Pressing the [2] key increments the test item and pressing the [8] key decrements the test item.)
  • Page 117 5. Maintenance Menu Oki Data CONFIDENTIAL Table 5-2 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 118: Motor Clutch Test

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.2.1.4 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 [2], [8] key until "MOTOR&CLUTCH TEST" is displayed in the upper row of the display area.
  • Page 119 5. Maintenance Menu Oki Data CONFIDENTIAL Table 5-3 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 120: Test Print

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.2.1.5 Test print Display Setting value Function PRINT EXECUTE – Pressing the [6] key starts print/Pressing the [#] key This self-diagnostic menu is used to print the test pattern that is built inside PU. Other test terminates print.
  • Page 121 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 [6] key and the test print is executed with the setting value that has been set by steps 2 and 3.
  • Page 122 5. Maintenance Menu Oki Data CONFIDENTIAL Pattern 14 Pattern 15 Pattern 8 Pattern 9 Pattern 16 Pattern 17 Pattern 10 Pattern 11 Pattern 19 Pattern 12 Pattern 13 Pattern 18 121 / 45376001TH Rev.1...
  • Page 123 5. Maintenance Menu Oki Data CONFIDENTIAL Pattern 26 Pattern 20 Pattern 21 Pattern 22 Pattern 23 Pattern 24 Pattern 25 122 / 45376001TH Rev.1...
  • Page 124 5. Maintenance Menu Oki Data CONFIDENTIAL • During printing, the following messages are displayed. • Displays are switched by pressing the [2] key. P=*** ETMP=***UTMP=*** W=*** REG=****EXT=*** P : Number of test print copies (unit: copies) ETMP : Hopping motor constant speed correction parameter...
  • Page 125 5. Maintenance Menu Oki Data CONFIDENTIAL • Displays are switched by pressing the [2] 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 [2] key.

  • Page 126: Color Registration Correction Test

    5. Maintenance Menu Oki Data CONFIDENTIAL When the [#] key is pressed while test is in progress (while the [DATA] lamp is 5.2.1.6 Color registration correction test 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 127: Density Correction Test

    5. Maintenance Menu Oki Data CONFIDENTIAL Repeat steps 2 and 3 as required. 5.2.1.7 Density correction test Pressing the [4] 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 128 5. Maintenance Menu Oki Data CONFIDENTIAL When the [#] key is pressed while test is in progress (while the [DATA] lamp is Pressing the [4] key terminates the test. (Returns to the status of step 1.) lighting), the screen returns to the state of step 2.

  • Page 129: Consumable Item Counter Display

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.2.1.8 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 130: Number Of Print Copies Counter Display

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.2.1.9 Number of print copies counter display 5.2.1.10 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 131: Self-Diagnostic Function Setting

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.2.1.11 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 132: Led Head Serial Number Display

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.2.1.12 LED head serial number display 5.2.2 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 133: Functions Of Keys At Power On

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.2.3 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 134: How To Enter The Scanner Maintenance Menu

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.2.4 How to enter the Scanner Maintenance Menu (1) Press the [6] key & [8] key when the MFP power is turned on. (2) Press the [1] key when the "Select Number" is displayed.
  • Page 135 5. Maintenance Menu Oki Data CONFIDENTIAL (3) Display "Scanner Maint" as the Scanner Maintenace Menu show below. Default Default Default Value Item1 Item2 Item3 Item4 value value value Notes (Step) Scanner Adjust Scan Side Reg. +42 ~ 0 Adjust the scanning start position of main scanning direction when book scanning.

  • Page 136: Setups Upon Completion Of Part Replacement

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.3 Setups upon completion of part replacement The adjustments that are required upon completion of part replacement are described 5.3.1 Precautions when replacing the PU board 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 137 5. Maintenance Menu Oki Data CONFIDENTIAL When access to the EEPROM of the board to remove is impossible. section 2.4.1.1.10.4) When the board is replace with the new board, the new board has been set If the SERVICE CALL 104 [Engine EEPROM Error] is displayed on the operator in the Factory working mode.

  • Page 138: Density Control Manual Setting

    5. Maintenance Menu Oki Data CONFIDENTIAL 5.4 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 139: Periodic Maintenance

    Oki Data CONFIDENTIAL Periodic Maintenance 6.1 Cleaning ..................139 6.2 How to clean the LED lens array ..........140 6.3 How to clean the pickup roller ............142 6.4 How to clean the paper feed rollers for MP Tray ......143 6.5 How to clean the rollers in the ADF ...........144 6.6 How to clean the document glass ..........145...

  • Page 140: Cleaning

    6. Periodic Maintenance Oki Data CONFIDENTIAL 6.1 Cleaning Clean inside and outside of the MFP 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 141: How To Clean The Led Lens Array

    6. Periodic Maintenance Oki Data CONFIDENTIAL 6.2 How to clean the LED lens array If the white banding, white stripe (white drop-out, light printing) in the vertical direction Perform cleaning of the LED head. occurs on the print surface, clean the LED lens array.
  • Page 142 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 143: 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 144: How To Clean The Paper Feed Rollers For Mp Tray

    6. Periodic Maintenance Oki Data CONFIDENTIAL 6.4 How to clean the paper feed rollers for MP Tray (1) Open the MP tray. (3) Wipe the paper feed roller with a soft cloth lightly moistened with water. Feed roller Multi-paper tray (4) Close the cover of the paper feed roller.

  • Page 145: How To Clean The Rollers In The Adf

    6. Periodic Maintenance Oki Data CONFIDENTIAL 6.5 How to clean the rollers in the ADF (4) Wipe the document feeding rollers with a soft cloth lightly moistened with water. If the document feeding rollers in the ADF are contaminated with ink, toner particles or Wipe the whole surface of the roller while turning it with your hand.

  • Page 146: How To Clean The Document Glass

    6. Periodic Maintenance Oki Data CONFIDENTIAL 6.6 How to clean the document glass It is recommended to clean the document glass once a month to maintain image quality of the printouts. (1) Open the document glass cover. (2) Wipe the document holding pad, document glass and ADF document glass surface with a soft cloth lightly moistened with water.

  • Page 147: How To Clean Inside Of Mfp

    6. Periodic Maintenance Oki Data CONFIDENTIAL 6.7 How to clean inside of MFP Clean inside of the MFP. (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 148 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 149: Troubleshooting And Repair Procedure

    Oki Data CONFIDENTIAL Troubleshooting and repair procedure 7.1 Before starting the repair work ..........149 7.2 Confirmation items before taking corrective action against abnormalities ................149 7.3 Precautions when taking corrective action against abnormality 149 7.4 Preparation for troubleshooting ..........149 7.5 Troubleshooting method ............150 7.6 Fuse check ................200...

  • Page 150: 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 151: Error Code List

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5 Troubleshooting method When a trouble occurs in this printer, perform troubleshooting by following the steps 7.5.1 Error code list described below. Note! For the error codes not described in this manual, refer to the Software Guide.
  • Page 152 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Error Code Details Error Code Details C0A5 Fan Motor Error5(Engine Fan Motor Error) C91D Engine Error1 C0A6 Fan Motor Error6(Duplex Fan Motor Error) C91C Engine Error2 C446 Upper heater temperature low C91B...
  • Page 153 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Error Code Details Error Code Details D304 Yellow toner is empty F104 HDD data error D361 Standard Bin (Face Down Bin) Full F105 HDD other error C260 Ramp error F350 Slog board abnormality...

  • Page 154: Printer Error Troubleshooting

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.2 Printer error troubleshooting Contents Code nnn Indicates that jam has occurred Error during feeding paper from the MP Contents Code nnn E120 tray. Additional paper is detected when a Error Error E120: MP Tray paper jam has occurred.
  • Page 155 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Error code Cause Error details Remedial measure Error code Cause Error details Remedial measure CE52 This error can easily occur After leaving a C5A1 Read/write Turn off the power condensation when a printer is brought in to...
  • Page 156 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Error code Cause Error details Remedial measure Error code Cause Error details Remedial measure C3EA~ The ID unit Is the ID unit installed normally? Re-install the ID unit. C41E Compensation Is the error message displayed?
  • Page 157 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Error code Cause Error details Remedial measure Error code Cause Error details Remedial measure C56A Option unit Turn on the power C4E3 Fuser motor Fuser does not rotate normally. Check if the I/F error again.
  • Page 158 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Error code Cause Error details Remedial measure Error code Cause Error details Remedial measure C5A3 Tray3 Software Error Change the Tray3 E13A Tray1 paper remaining Take out the Board jammed paper. Change the sensor...
  • Page 159 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Note! ・Service calls C41E error, C41B error, C41D error, C37C error and C37D Error code Cause Error details Remedial measure 　error; These errors can occur when the printer temperature is below 0...

  • Page 160: Scanner Error Troubleshooting

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.3 Scanner error troubleshooting System Spec. Code Category Cause Error details Measure System Spec. E722 Error ADF document Regist paper sensor stuck jam/detection Open the ADF cover, Code Category Cause Error details Measure of out-of-spec oversized documents –...
  • Page 161 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL System Spec. System Spec. Code Category Cause Error details Measure Code Category Cause Error details Measure E728 Error ADF document Detection of chattering of a sensor Open the ADF cover, C280 ServiceCall Scanner home The home position sensor does not Power cycle the unit.

  • Page 162: Preparation For Troubleshooting

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (8-5) Paper is not supplied from the Duplex unit to the regist roller....183 7.5.4 Preparation for troubleshooting Paper size error (error code E061, E062, E063, E064, E065) ......183 LCD display error ....................162 (9-1) Jam occurs when paper end is located near the IN1 sensor.

  • Page 163: Lcd Display Error

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (1) LCD display error Action to be taken Check item Check work Memo For the numbers from ① through  after name of the respective connectors, at NG refer to section 7.5.4 (19) "Wiring diagram".

  • Page 164: Abnormal Operations Of Printer After The Power Is Turned On

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (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 165: 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 166 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL JAM location of occurrence outline chart (3) Paper Jams When paper jams occur or paper remains in the printer, "Paper Jam", or "Paper Remain" is displayed on the operation panel. A method to remove the paper is displayed, remove the paper in the printer according to...
  • Page 167 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 168 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (3) Slowly pull out the jammed paper. Open Cover Open Cover If you see the top edge of paper If you do not see the top edge of paper Paper Remain Paper Jam...
  • Page 169 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (3) Uninstall the four image drum cartridges and put them on a flat table. Open Cover Open Cover Starter toner cartridge Paper Remain Paper Jam Top Cover Top Cover Image drum cartridge When the above messages are displayed.
  • Page 170 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). Lock lever of the fuser unit (Blue) Pull up the jammed paper slowly while pushing the jam release lever of the fuser unit.
  • Page 171 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 172: Document Jam

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL If the edge of the document can been seen under the paper guide, lift the paper Document Jam guide and then pull out the document. In the Duplex Paper Path (1) While opening the ADF cover, pull out the document from the duplex paper path.

  • Page 173: Paper Feed Jam (Error Code E130: 1St Tray)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (3) Paper feed jam (error code E130: 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 174 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 175: Feed Jam (Error Code E202)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (4) Feed jam (error code E202) (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 176: Paper Feed Jam (Error Code E120: Multipurpose Tray)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (5) Paper feed jam (error code E120: 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 177: Jam Occurs Immediately After Paper Feed Is Started

    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 178: Paper Running Jam (Error Code E010)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (6) Paper running jam (error code E010) (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 179: 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 180: 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. 7.5.4. (7) Paper unloading jam (error code E020) (7-1) Paper unloading jam occurs immediately after the power is turned on. Action to be taken...

  • Page 181: 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 182: 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. 7.5.4. (8) Two-sided printing jam (error code: E580, E520, E110, E570) (8-1) Two-sided printing jam occurs immediately after the power is turned on.

  • Page 183: 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 184: 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. 7.5.4. (9) Paper size error (error code E061, E062, E063, E064, E065) (9-1) Jam occurs when paper end is located near the IN1 sensor.

  • Page 185: Id Unit Up/Down Error (Service Call Ce7A)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (10) ID unit Up/Down error (Service call CE7A) Action to be taken Check item Check work at NG (10-1) Error occurs during the Up movement of the ID unit (10-1-3) Sensor check...

  • Page 186: Fuser Unit Error (Error C41A,C41B,C449,C446,C41C,C41D,C468,C466)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (11) Fuser unit error (error C41A,C41B,C449,C446,C41C,C41D,C468,C466) 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 187: Motor Fan Error (Error Code C0A2, C0A1, C0A5, C0A6)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (12) Motor fan error (error code C0A2, C0A1, C0A5, C0A6) (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 188: Print Speed Is Slow. (Performance Is Low.)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (13) Print speed is slow. (Performance is low.) 7.5.4. (14) Option unit cannot be recognized. (13-1) Print speed decreases. (14-1) Duplex unit cannot be recognized. Action to be taken Action to be taken...

  • Page 189: Led Head Cannot Be Recognized. (Error Code Ce82, Ce83, Ce84, Ce85)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (15) LED head cannot be recognized. (error code CE82, CE83, CE84, CE85) Action to be taken Check item Check work at NG (15-1) Service call CE82 to CE85 (LED HEAD Missing)

  • Page 190: Toner Cartridge Cannot Be Recognized. (Error Code C3B3,C3A3,C393,C383)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (16) Toner cartridge cannot be recognized. (error code C3B3,C3A3,C393,C383) 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 191: Error Caused By The Defective Mechanism

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL (16-3) Error caused by the defective mechanism 7.5.4. (17) Fuse cut error (error codes C3EA,C3EB,C3EC,C3ED,,C3E2,C4C0) (17-1) Fuse cut error Action to be taken Check item Check work at NG Action to be taken...

  • Page 192: Humidity Sensor Error (Error Code Ce51)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (18) Humidity sensor error (error code CE51) 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 193: Wiring Diagram

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.4. (19) Wiring diagram Scan sensor Duplex unit Cover open Front Bottom Regist sensor sensor sensor sensor sensor HOP sensor Printer main unit Reverse sensor Clutch Cover Open sensor ADF Relay Paper Set sensor...

  • Page 194: Troubleshooting The Abnormal Images

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.5 Troubleshooting the abnormal images Color has faded-out and blurred entirely. (Refer to Figure 7-2A.) .......194 (1-1) Color are faded-out and blurred...............194 Stain on white print (Refer to Figure 7-2B.) ............195 (2-1) Stain on white print (Partial stain) .............195...

  • Page 195: Color Has Faded-Out And Blurred Entirely. (Refer To Figure 7-2A.)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.5.(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 196: Stain On White Print (Refer To Figure 7-2B.)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.5.(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 197: White Print (Refer To Figure 7-2C.)

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.5.(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 198: Black Banding/Black Streaking In Vertical Direction

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.5.(4) Black banding/black streaking in vertical direction 7.5.5.(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 199: Heavy Color Registration Error

    7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL 7.5.5.(6) Heavy color registration error 7.5.5.(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 200 7. Troubleshooting and repair procedure Oki Data CONFIDENTIAL Charge roller Ground Developer roller Toner feed roller Figure 7-3 199 / 45376001TH Rev.1...

  • Page 201: 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 PU/SU control board and high voltage power supply board. (Refer to Table 7-6.) Table 7-6 Fuse error...

  • Page 202: 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. TRAY1~4 Cassette: none Legal 14" Legal 13.5" Legal 13" Letter Executive Blank Folio Not used Not used Not used...

  • Page 203: Connection Diagrams

    Oki Data CONFIDENTIAL Connection diagrams 8.1 Resistance value check .............203 8.2 Parts location ................207...

  • Page 204: 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 203 / 45376001TH Rev.1...
  • Page 205 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 204 / 45376001TH 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: 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 207 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 208: Parts Location

    8. Connection diagrams Oki Data CONFIDENTIAL 8.2 Parts location (1) CU PCB Component side Soldering side 207 / 45376001TH Rev.1...
  • Page 209 8. Connection diagrams Oki Data CONFIDENTIAL (2) PU PCB Soldering side Component side 208 / 45376001TH Rev.1...
  • Page 210 8. Connection diagrams Oki Data CONFIDENTIAL (3) Rellay PCB Component side FUSER DENS Rellay PCB　IBY 44559899 Soldering side BFUSE BFUCUT 209 / 45376001TH Rev.1...
  • Page 211 8. Connection diagrams Oki Data CONFIDENTIAL (4) Duplex Print Control PCB Component side Soldering side 210 / 45376001TH Rev.1...
  • Page 212 8. Connection diagrams Oki Data CONFIDENTIAL (5) Second Tray Control PCB Soldering side Component side 211 / 45376001TH Rev.1...
  • Page 213 8. Connection diagrams Oki Data CONFIDENTIAL (6) Toner Low Sensor PCB (7) Entrance Sensor PCB SSNS (8) Color Adjustment Sensor PCB 212 / 45376001TH Rev.1...
  • Page 214 8. Connection diagrams Oki Data CONFIDENTIAL (9) High-Voltage Power Supply PCB (10) Low-Voltage Power Supply PCB TR-K TR-Y TR-M TR-C 213 / 45376001TH Rev.1...
  • Page 215 8. Connection diagrams Oki Data CONFIDENTIAL (11) ID unit (12) Transfer belt unit ID unit (for consumable parts) Transfer belt unit (for consumable parts) Contactor point Contactor point Fuse Fuse Toner Low Sensor PCB (PRZ PCB) Relay PCB Contactor point...
  • Page 216 8. Connection diagrams Oki Data CONFIDENTIAL (13) SU Board Soldering side Component side 215 / 45376001TH Rev.1...
  • Page 217 8. Connection diagrams Oki Data CONFIDENTIAL (14) Environment SNS (15) SU connection board 216 / 216 45376001TH Rev.1...

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