Oki MC873dn Maintenance Manual
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Oki MC873dn Maintenance Manual

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MC873dn / ES8473 MFP
Maintenance Manual
041315A

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Summary of Contents for Oki MC873dn

  • Page 1 MC873dn / ES8473 MFP Maintenance Manual 041315A...
  • Page 2 Copyright Information Copyright © 2015 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 • Unexpected mistakes may exist in the manual. Caution for used batteries are as follows; do not recharge, force open, OKI will not assume any responsibility whatsoever for damage to the heat or dispose of in fire. equipmentrepaired/adjusted/changed by the user etc with this manual.

  • Page 4: Table Of Contents

    CONTENTS Oki Data CONFIDENTIAL CONTENTS 1. CONFIGURATION ..............1-1 2.5 Troubleshooting method ...................2-3 2.5.1 Panel messages list ...................2-3 1.1 System configuration ..................1-2 2.5.2 Inspection List ..................2-29 1.2 Structure of MFP .....................1-4 2.5.3 Fax Error List ....................2-36 1.3 Offer of Options ....................1-5 2.5.4 Email/Internet FAX/FAX Server Error List ..........2-39...
  • Page 5 CONTENTS Oki Data CONFIDENTIAL 3.4.10 Factory-Shipping mode switching ............3-34 4.2.10.10 Guide Assy.-Top / Board Assy.-6JC ..........4-24 3.4.11 Self-diagnostic function setting ..............3-35 4.2.10.11 Guide-Assy-Retard .................4-25 3.4.12 LED head serial number display ..............3-36 4.2.10.12 Flatbed-Unit ..................4-25 3.4.13 Drum Manual Cleaning ................3-36 4.2.10.13 Frame-assy-FB ................4-26 3.4.14 Functions of buttons after power-on ............3-37...
  • Page 6 Oki Data CONFIDENTIAL 5. REGULAR MAINTENANCE ..........5-1 5.1 Cleaning ......................5-2 5.2 Cleaning of LED lens array ................5-3 5.3 Cleaning the Feed rollers and the Retard roller ..........5-5 5.4 Cleaning the MPT Feed rollers ................5-7 5.5 Cleaning Rollers in the ADF ................5-9 5.6 Cleaning the rollers inside of the ADF ............5-11...

  • Page 7: Configuration

    Oki Data CONFIDENTIAL CONFIGURATION 1.1 System configuration ..............1-2 1.2 Structure of MFP .................1-4 1.3 Offer of Options ................1-5 1.4 Specifications ................1-6 1.5 Interface specifications ..............1-16...

  • Page 8: System Configuration

    1. CONFIGURATION Oki Data CONFIDENTIAL 1.1 System configuration 2Bin Unit RFID 7 inch OPE Board-POL Speaker System Configurations of the MFP Unit. FFC22P Paper route setting Solenoid The system configuration of this product is shown in JST2P JST2P JST2P JST2P...
  • Page 9 1. CONFIGURATION Oki Data CONFIDENTIAL FB Unit ADF Unit ADF feed hopping motor motor To CU/PU board JST 6P JST 6P JST 14P JST 6P JST 6P ADF relay board Flatbed motor (Board-6RL) FFC50P Core Core JST 14P AMP 4P...

  • Page 10: Structure Of Mfp

    1. CONFIGURATION Oki Data CONFIDENTIAL 1.2 Structure of MFP The insides of multi function printers are composed of the following parts. • Scanner part • Electronic photography process part • Paper path • Duplex part • 2bin part • Control part (CU part / PU part ) Ⓑ...

  • Page 11: Offer Of Options

    1. CONFIGURATION Oki Data CONFIDENTIAL 1.3 Offer of Options This product can be installed with the following option. *The assembling pattern of the Additional Tray, the caster base and the cabinet should be as the following table. * Check the usable option unit at each setting locations, because those are different according to the sales location.

  • Page 12: Specifications

    1. CONFIGURATION Oki Data CONFIDENTIAL 1.4 Specifications Print specifications Item MC853/ES8453 MC873/ES8473 Fonts Scalable 87 PCL fonts, 80 PostScript fonts Item MC853/ES8453 MC873/ES8473 Typefaces Segment Small working Group Bitmap 4 PCL fonts Print speed (simplex) A4 / Letter 23ppm 35ppm...
  • Page 13 1. CONFIGURATION Oki Data CONFIDENTIAL Item MC853/ES8453 MC873/ES8473 Item MC853/ES8453 MC873/ES8473 Operating tempature 10 to 32 (C degree) Image drum life at duplex Continuous 33,000pages(16,500sheets) (w/o power save) Operating humidity 20 to 80 % 6 pages per 21,000pages(10,500sheets) Operation panel...

  • Page 14: Copy Specifications

    1. CONFIGURATION Oki Data CONFIDENTIAL Copy specifications Item MC853/ES8453 MC873/ES8473 Image quality adjustment Density, Background removal [Auto, OFF, 1, 2, 3, 4, 5, Item MC853/ES8453 MC873/ES8473 6], Show-Through Removal [OFF, Low, Middle, High], Flatbed Color up to 23cpm up to 35cpm...

  • Page 15: Scan Specifications

    1. CONFIGURATION Oki Data CONFIDENTIAL Scan specifications Item MC853/ES8453 MC873/ES8473 Scan to email, Address book 1,000 locations, 32 group address Item MC853/ES8453 MC873/ES8473 network PC, Scan profile 50 profiles Sensor type Color CIS File system FAT12, FAT(FAT16), FAT32 Optical 600dpi...

  • Page 16: Fax Specifications

    1. CONFIGURATION Oki Data CONFIDENTIAL FAX specifications Front End Installer specifications Item MC853/ES8453 MC873/ES8473 Item MC853/ES8453 MC873/ES8473 Driver Install Connetivity PSTN, PBX line Speed ITU-T G3 (Super G3) up to 33.6kbps, Approx. Utility Install 2seconds/page Language Setting Coding method MH, MR, MMR, JBIG...

  • Page 17: Other Specifications

    1. CONFIGURATION Oki Data CONFIDENTIAL Other specifications Item MC853/ES8453 MC873/ES8473 IC card reader for panel unlock & secure print Open-API support Audio Guide Scan to Box Function Support WiFi Direct Support Concurrent Connection of Wired & Wireless SD memory Additional tray Yes (See the item 1.3 for the assembly pattern)

  • Page 18: Paper Handling

    1. CONFIGURATION Oki Data CONFIDENTIAL Paper handling Tray Standard Option Paper Size Detection/ 1st tray Duplex 2nd tray/ 3rd tray/ (Tray1) Printer section 4th tray < Paper Input > China 8K(273 x 394) Manual China 8K(260 x 368) Manual Tray...
  • Page 19 1. CONFIGURATION Oki Data CONFIDENTIAL < Paper output > Stacker Face up Face down 1st bin 2nd bin Stacker Face up Face down China 16K (184 x 260) LEF 1st bin 2nd bin 3" x 5" Paper output Capacity 100 sheets...

  • Page 20: Scanner Section

    1. CONFIGURATION Oki Data CONFIDENTIAL Scanner section RADF Flatbed Simplex Duplex Paper Size on glass Paper Size < Document Paper Input > Detection Detection China 16K(184 x 260) RADF Flatbed China 16K (197 x 273) LEF Simplex Duplex Paper Size...
  • Page 21 1. CONFIGURATION Oki Data CONFIDENTIAL < Protocol > Protocol for all Protocol for all TCP/IPv4&v6 SMTP NetBEUI SMTPS NetBIOS over TCP AirPrint NetWare Google Cloud Print EtherTalk WLAN 802.11bgn DHCP WLAN 802.11abgn DHCPv6 Yes* BOOTP Yes* HTTP WPA2 HTTPS Personal...

  • Page 22: Interface Specifications

    1. CONFIGURATION Oki Data CONFIDENTIAL 1.5 Interface specifications 1.5.1 USB Interface Specification (2) Cable Cable length : Specification Cable of USB2.0 spec. of less than 5m.(less 1.5.1.1 Outline of USB Interface than 2m is recommended) (1) Basic Specification 1.5.1.3 USB Interface Signal...

  • Page 23: Network Interface Specification

    1. CONFIGURATION Oki Data CONFIDENTIAL 1.5.2 Network Interface Specification 1.5.2.3 Network Interface Signal Pin No. Signal name Functions 1.5.2.1 Outline of Network Interface TRD+(0) Transmit and receive Data 0 (+) TRD-(0) Transmit and receive Data 0 (-) Refer to the contents of 1.4 Specifications.

  • Page 24: 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 line. (1) Basic Specification 1.5.3.2 Telephone Line Interface Connector and Cable...

  • Page 25: Wireless Lan Interface

    1. CONFIGURATION Oki Data CONFIDENTIAL 1.5.5 Wireless LAN Interface 1.5.5.1 Outline of Wireless LAN (1) Specification IEEE 802.11 a/b/g/n conformity (2.4GHz / 5GHz) (2) Power supply voltage Connector Note! This product cannot connect to a wired LAN and wireless LAN at the same time.

  • Page 26: Troubleshooting Procedures

    Oki Data CONFIDENTIAL TROUBLESHOOTING PROCEDURES 2.1 Precautions prior to repair ............2-2 2.2 Items to be checked prior to taking action on abnormal images ..2-2 2.3 Precautions when taking action on abnormal images ....2-2 2.4 Preparations for troubleshooting ...........2-2 2.5 Troubleshooting method ...............2-3 2.6 Fuse Checking ................2-83...

  • Page 27: Precautions Prior To Repair

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.1 Precautions prior to repair (1) Confirm the basic check items indicated in the User's Manual. (2) Through hearing from the user, obtain information, as far in detail as possible, on the situation concerning the fault.

  • Page 28: Troubleshooting Method

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5 Troubleshooting method 2.5.1 Panel messages list If a trouble occurs in the printer, search for it by the following procedure: Initializing & Information Problem No. Category PJL Status Panel messages Description generated Code...
  • Page 29 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code Initializing - Inspection is It is shown that PU firmware has booted in Loader 10 Initializing - %STORAGE% %ERRCODE%: 0 required.
  • Page 30 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL Normal No. Category PJL Status Panel messages Description Code No. Category PJL Status Panel messages Description Code Normal 10099 Print page Collate printing. %PAGES% No. of "Print page" means the current number of printing...
  • Page 31 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 19 Normal 10003 Warming up Warming up. 29 Normal 10863 Scanning ... Indicates that it is scanning of documents.
  • Page 32 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 30 Normal 10896 Scanning ... Indicates that it is copying. 35 Normal 10859 Data writing to USB Indicates that it is wrighting the image file to USB Print page sss: the number of current scanning page.
  • Page 33 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 43 Normal 10855 Fax Sending ... Indicates that it is sending fax data. 48 Normal 10875 Cancelling sending Indicates that E-mail sending is cancelling.
  • Page 34 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 60 Normal This status is for confirming the number of print 70 Normal Cancelling ... Indicates that cancellation of PushScan (by panel job.
  • Page 35 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL Warning No. Category PJL Status Panel messages Description Code No. Category PJL Status Panel messages Description Code Warning 10077 (Y) %COLOR% Image The life of the drum (warning). Displayed in a 10078 (M) Drum Near Life.
  • Page 36 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 14 Warning 10970 (Y) %COLOR% Please Notifies the life of the drum. This is a warning 21 Warning...
  • Page 37 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 27 Warning 10051 Registration Error When a color registration error is detected with 32 Warning 40994 Insufficient page...
  • Page 38 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 38 Warning 32000 Disk Read/Write A disk error is occurred, which is other than 41 Warning 30114 Invalid print data Invalid data was received.
  • Page 39 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 49 Warning 10821 Incompatible USB Indicates that the unsupported USB device was 56 Warning 30937 Access Limitation Notifies the user that the color toner is empty and device connected.
  • Page 40 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 63 Warning 10756 Wait Timeout in 72 Warning 10692 (Y) %COLOR% Notifies the prolonged period of the image drum menu is disabled.
  • Page 41 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description Code 79 Warning 10646 Output error. For the paper setting that a paper cannot be ejected in 2nd Bin, the paper ejected in 1st Bin. A message disappears by pressing CLOSE button.
  • Page 42 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL Error No. Category PJL Status Panel messages Description Code No. Category PJL Status Panel messages Description Code Error 480yy Please change The media type in the tray and the print data do %TRAY% paper.
  • Page 43 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code Error 40827 Power OFF/ON Indicates that message data to be updated has 13 Error 46012(Tray1) %TRAY% cassette Indicates that paper feed is unavailable in...
  • Page 44 40908 (M) Recommended to the distribution channel, and the group of 40950 (C) Toner. signature ID is proper (OKI regional mismatch). 40909 (C) Toner. signature ID is protected (OEM mismatch). 40947 (K) As probable missing to measure the amount of...
  • Page 45 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 21 Error 40903 (Y) %COLOR% Toner The toner cartridge is not installed. 26 Error 40077 Paper jam has...
  • Page 46 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 32 Error 40997 (Y) %COLOR% Please The life of the image drum (Alarm) 39 Error 40964 Waste Toner Full.
  • Page 47 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 47 Error 40967 An error has happened while the printer is 57 Fatal 40057 Inspection is required. A fatal error occurred.
  • Page 48 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 62 Error 40789 Document jam has Indicates that the document jam occurred during 69 Error 40787 Indicates that it is carriage error.
  • Page 49 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 77 Error 40764 Please check Indicates that failed to connect with POP3 server. 89 Error 40750 Server Login failed.
  • Page 50 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 97 Error Please check data. Indicates that an error has happened while writing 103 Fatal 40057 Power OFF/ON A fatal error occurred.
  • Page 51 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 109 Error 30936 Unauthorized Scan Notifies that a particular pattern is detected 118 Error 40596 Error Code: X01...
  • Page 52 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 126 Error Use genuine This should be appeared after the 131 Error 40492(Y) Incompatible The signature ID of image drum is not proper...
  • Page 53 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Category PJL Status Panel messages Description No. Category PJL Status Panel messages Description Code Code 133 Error 40502(Y) Incompatible The signature ID of image drum can not be 134 Error 40506(Y) %COLOR% Image The image drum is not installed.

  • Page 54: Inspection List

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.2 Inspection List Panel display Cause Check details Result Solution Inspection is Detect the CU Cycle the power. Panel display Cause Check details Result Solution required. EEPROM error Does this error message Replace the CU/ PU board.
  • Page 55 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL Panel display Cause Check details Result Solution Panel display Cause Check details Result Solution Inspection is Controller unit Power off the MFP and attach Power OFF/ON I/F error between Record the figures on the required.
  • Page 56 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL Panel display Cause Check details Result Solution Panel display Cause Check details Result Solution Inspection is A Tray4 for Is a Tray4 provided for Install a correct Tray4. Inspection is PU FAN error Is the FAN connector Check to make sure required.
  • Page 57 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL Panel display Cause Check details Result Solution Panel display Cause Check details Result Solution Inspection is An abnormality 01, 02: Cycle the power. Inspection is An abnormality Is the error message Cycle the power.
  • Page 58 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL Panel display Cause Check details Result Solution Panel display Cause Check details Result Solution Inspection is Short circuit of Cycle the power. Inspection is Tray2 I/F error Cycle the power. required. the heat roller Does this error recur? Replace the fuser unit.
  • Page 59 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL Panel display Cause Check details Result Solution Panel display Cause Check details Result Solution Inspection is An abnormality Does this error recur? Cycle the power. Inspection is More than one Cycle the power. required.
  • Page 60 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL Panel display Cause Check details Result Solution Panel display Cause Check details Result Solution Power OFF/ON Detect the Inspection is Excessive trays Are many trays beyond Use trays as many as 918:Error Duplex Unit Fan- required.

  • Page 61: Fax Error List

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.3 Fax Error List No. Value Description Solution (Hex) Termination Code List Detect Busy Tone when dialing In possibly, the other side is connecting with someone. No. Value Description Solution Wait a few minutes, and retry it.
  • Page 62 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Value Description Solution No. Value Description Solution (Hex) (Hex) Phase-B Command Rec Error (Failed to Set to 'OFF' the setting of 'Super G3'. Invalid TSI error (matches number denied Rejected receving by the function of the...
  • Page 63 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL No. Value Description Solution No. Value Description Solution (Hex) (Hex) Image Data not ready (Decoding or file system The transmission state is poor quality. V34 t1 timeout, control channel error (T1 In the case of connecting through IP-...

  • Page 64: Email/Internet Fax/Fax Server Error List

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.4 Email/Internet FAX/FAX Server Error List ErrorCode Description Connection failed. Please check "SMTP Server" settings. Connection failed. Please check "SMTP Server Port" settings. Authentication failed. "SMTP Auth" Unsupported. Authentication failed. "SMTP Auth" Login failed. Be sure of the login name and password for the mail server.

  • Page 65: Preparing For Troubleshooting

    Error occurs during the Down movement of the ID unit ....2-65 (1-1) LCD displays nothing ................2-41 (5) Fuser unit error (Error code: 167 to 177) ............2-65 (1-2) Display of OKI logo ................2-42 (5-1) Error occurs immediately after the power is turned on......2-65 (1-3) Error message display ................2-42 (5-2) Error occurs approx.

  • Page 66: Lcd Display Trouble

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.5.(1) LCD Display Trouble Actions to be taken Check item Check work at NG (1-1) LCD displays nothing (1-1-2) Checking connections Actions to be taken Check item Check work Connection between Make sure the 50-pin FFC...

  • Page 67: Display Of Oki Logo

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL (1-2) Display of OKI logo 2.5.5.(2) Abnormal MFP operation after powered on (2-1) Any operation does not start at all. Actions to be taken Check item Check work at NG Actions to be taken...

  • Page 68: Abnormal Sound Is Heard

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL Actions to be taken Actions to be taken Check item Check work Check item Check work at NG at NG (2-1-3) Check the system connection (2-2-3) Check the jumping phenomena of gear tooth. (Abnormal load of the consumable item) Connection condition Check contents of (1-1).

  • Page 69: Bad Odors Are Generated

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL (2-3) Bad odors are generated. Actions to be taken Check item Check work at NG (2-3-1) Locating the exact position of generating bad odor Fuser unit Remove the fuser unit and check the odor.

  • Page 70: Paper Jams

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL (3)Paper Jams Clearing Paper Jams This section explains how to clear paper jams. Caution Possible to get burned. Reference! • For details on the location of each component of the machine, refer to "Swich scan test" and "Motor clutch test".
  • Page 71 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL (384:Upper Output Tray) (390:MISS FEED AT (382:EXIT) FRONTFEEDER) EXIT2 sensor J5(380:FEED) J12(400:PAPER (381:TRANSPORT) EXIT sensor SIZE ERROR) (383:DUPLEX ENTRY) Fuser-IN sensor WR sensor DUP-IN sensor IN2 sensor DUP-F sensor DUP-R sensor IN1 sensor (370:DUPLEX...

  • Page 72: Paper Feed Jam

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.5. (3-1) Paper feed jam (3-1-2) Jam occurs immediately after the paper feed is started. (Tray1, Tray2, Tray3, Tray4) (Error code 391: Tray1 , 392: Tray2 , 393: Tray3 , 394: Tray4) Actions to be taken...
  • Page 73 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL Actions to be taken Actions to be taken Check item Check work Check item Check work at NG at NG (3-1-2-3) Motor operation check (3-1-2-5) Clutch operation check Hopping motor of Confirm that the hopping motor of the applicable...
  • Page 74 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL How to remove the paper (3) Return the tray into the machine. (4) Insert your finger into the recess on the right side of the printer and pull the front (Error code 391: Tray1 , 392: Tray2 , 393: Tray3 , 394: Tray4) cover open lever to open the front cover forward.

  • Page 75: Feed Jam (Error Code: 380, 381, 382, 383, 384, 385, 389)

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.5. (3-2) Feed jam (Error code: 380, 381, 382, 383, 384, 385, 389) (3-2-2) Jam occurs immediately after the paper feed is started. (3-2-1) Jam occurs immediately after the power is turned on. Actions to be taken...

  • Page 76: Paper Unloading Jam Occurs After A Paper Is Taken Into Printer

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL (3-2-3) Paper unloading jam occurs after a paper is taken into printer. Actions to be taken Check item Check work at NG Actions to be taken Check item Check work (3-2-2-4) Check the system connection...

  • Page 77: Paper Unloading Jam Occurs In The Middle Of Paper Running Path

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL How to remove the paper Actions to be taken Check item Check work at NG (Error code: 380, 381, 382, 383, 385, 389) (3-2-3-4) Check the system connection Fuser motor drive Check the connection condition of the cables.
  • Page 78 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL (5) ① If an edge of jammed paper can be seen (3) Remove all four image drums and place them on new paper etc. on a flat surface. Pull out the jammed paper gently from the rear of the printer (the direction of the arrow).
  • Page 79 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL ③ When paper jams in the fuser. 3. Lift the release levers on the fuser unit, and pull out the jammed paper forward gently. 1. Lift the left lock lever of the fuser unit forward.
  • Page 80 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 5. Push the left lock lever of the fuser unit backward. (7) Close the top cover by pushing the both sides of the cover firmly. (8) Close the front cover. (6) Return all four image drums into the printer carefully.
  • Page 81 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL How to remove the paper (Error code: 384) (1) Open the 2bin rear cover and pull out the jammed paper. 2-56 45850101TH Rev.1...

  • Page 82: Paper Feed Jam (Error Code 390: Multipurpose Tray)

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.5. (3-3) Paper feed jam (Error code 390: Multipurpose tray) (3-3-2) Jam occurs immediately after paper feed is started. (Multipurpose tray) (3-3-1) Jam occurs immediately after the power is turned on. (Multipurpose tray) Actions to be taken...
  • Page 83 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL How to remove the paper (Error code 390: Multipurpose tray) Actions to be taken Check item Check work at NG (1) If there is any papers on the MP Tray, lift the paper set cover and take the paper (3-3-2-4) Check the system connection out.
  • Page 84 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL (3) If the top end of paper is visible , hold the paper top end and carefully pull out the paper. If the bottom end of paper is visible, hold the paper by your hands and carefully pull out the paper.

  • Page 85: Two-Sided Printing Jam (Error Code: 370, 371, 372, 373)

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.5. (3-4) Two-sided printing jam (Error code: 370, 371, 372, 373) Actions to be taken Check item Check work at NG (3-4-1) Two-sided printing jam occurs immediately after the power is turned on. (3-4-2-3) Check condition of the paper running path...
  • Page 86 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL How to remove the paper (Error code: 370, 371, 372, 373) (4) Open the upper duplex unit cover and check for jammed paper. If jammed paper remains, pull it out gently and close the cover.

  • Page 87: Displayed 「Adf Document Jam

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL How to remove the paper (Displayed 「ADF Document Jam」) 2.5.5. (3-5) Displayed 「ADF Document Jam」 (3-5-1) Jam occurs at ADF unit. When you can see the document In the Duplex Paper Path Actions to be taken...
  • Page 88 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL (3) Hold jammed document by the top edge, and gently pull it out. If the edge of the document cannot be seen in the ADF, lift the document tray and then pull out the document and pull down the document tray.

  • Page 89: Paper Size Error (Error Code: 400 And 401)

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.5. (3-6) Paper size error (Error code: 400 and 401) 2.5.5.(4) ID unit Up/Down error (Service call 142) (3-6-1) Printing was stopped when paper ejected after paper size error detected. (4-1) Error occurs during the Up movement of the ID unit...

  • Page 90: Error Occurs During The Down Movement Of The Id Unit

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.5. (5) Fuser unit error (Error code: 167 to 177) Actions to be taken Check item Check work at NG (5-1) Error occurs immediately after the power is turned on. (4-1-3) Sensor check Actions to be taken...

  • Page 91: Error Occurs Approx. 1 Minute After The Power Is Turned On

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL (5-2) Error occurs approx. 1 minute after the power is turned on. Actions to be taken Check item Check work at NG Actions to be taken Check item Check work (5-2-3) AC power input for the fuse...

  • Page 92: Motor Fan Error (Error Code: 122, 127, 128, 918)

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.5. (6) Motor fan error (Error code: 122, 127, 128, 918) (6-3) All fans of the printer do not rotate. (6-1) The low voltage power supply fan does not rotate immediately after the power is...

  • Page 93: Option Unit Cannot Be Recognized

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.5. (8) Option unit cannot be recognized. 2.5.5. (9) LED head cannot be recognized. (Error code: 131, 132, 133 and 134) (8-1) Option try unit cannot be recognized. (9-1) Errors 131 to 134 (LED HEAD Missing)

  • Page 94: Toner Cartridge Cannot Be Recognized. (Error Code: 540, 541, 542 And 543)

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.5. (10) Toner cartridge cannot be recognized. (Error code: 540, 541, 542 and 543) Note! Toner sensor operation check method using the SWITCH SCAN function of the self-diagnostic mode. (10-1) Error caused by the consumable items.

  • Page 95: Error Caused By The Defective Mechanism

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL (10-3) Error caused by the defective mechanism 2.5.5. (11) Fuse cut error (Error code: 154 and 155) Actions to be taken (11-1) Fuse cut error Check item Check work at NG Actions to be taken...

  • Page 96: Humidity Sensor Error (Error Code: 123)

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.5. (12) Humidity sensor error (Error code: 123) Actions to be taken Check item Check work at NG (12-1) Humidity sensor error (12-1-2) Environment condition Actions to be taken Check item Check work Sharp change...
  • Page 97 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.5. (13) Wiring diagram RFID 2Bin Unit 7 inch OPE Board-POL Speaker FFC22P Paper route setting Solenoid JST2P JST2P JST2P JST2P Core JST2P Extension cable Core Speaker JST8P FRONT USB MEM SETCOV IC card...

  • Page 98: Troubleshooting The Abnormal Images

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.6 Troubleshooting the abnormal images (1) Color has faded-out and blurred entirely. (Refer to Figure 2-1 A.) ....2-74 (1-1) Color are faded-out and blurred............2-74 (2) Stain on white print. (Refer to Figure 2-1 B.) ..........2-75 (2-1) Stain on white print (Partial stain).............2-75...

  • Page 99: Color Has Faded-Out And Blurred Entirely. (Refer To Figure 2-1 A.)

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.6.(1) Color has faded-out and blurred entirely. (Refer to Figure 2-1 A.) Actions to be taken Check item Check work at NG (1-1) Color are faded-out and blurred. (1-1-5) ID unit installation condition Actions to be taken...

  • Page 100: Stain On White Print. (Refer To Figure 2-1 B.)

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.6.(2) Stain on white print. (Refer to Figure 2-1 B.) Actions to be taken Check item Check work at NG (2-1) Stain on white print (Partial stain) (2-1-2) Fuser unit Actions to be taken...

  • Page 101: White Print (Refer To Figure 2-1 C.)

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.6.(3) White print (Refer to Figure 2-1 C.) Actions to be taken Check item Check work at NG (3-1) White print over entire page (3-1-3) High voltage terminal Actions to be taken Check item...

  • Page 102: Black Banding/Black Streaking In Vertical Direction

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.6.(4) Black banding/black streaking in vertical direction 2.5.6.(5) Periodic abnormalities (Refer to Figure 2-1 E.) (4-1) Thin vertical line (with color) (Refer to Figure 2-1 D.) (5-1) Periodic abnormality occurs in vertical direction Actions to be taken...

  • Page 103: Significant Color Misregistration

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.6.(6) Significant color misregistration 2.5.6.(7) Solid black printing. (6-1) Color misregistration occurs. (7-1) Solid black printing over the whole page Actions to be taken Actions to be taken Check item Check work Check item...
  • Page 104 2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL Charge roller Ground Developer roller Toner feed roller Figure 2-2 2-79 45850101TH Rev.1...

  • Page 105: Response After Flash Compulsive Initialization

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.7 Response after Flash compulsive initialization 2.5.8 Copy Image Abnormality Error Troubleshooting • When the following symptom occurs in the copy image, implement the inspection and Explain the response after compulsive initialization is performed with trouble occurred in adjustment of the copy image.

  • Page 106: Network Troubleshooting

    Subnet mask, Gateway response is correct. address correctly. (4) Check the utility Check the settings of OKI Check the setting items of OKI Set the setting items of LPR utility. LPR utility. OKI LPR utility correctly. (5) Check the OS standard port.

  • Page 107: Wireless Troubleshooting

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.5.10 Wireless Troubleshooting *1 : Check once again whether the SSID, security setting, and an encrypting key of the wireless LAN access point are same as the settings of this device. When any one of settings is different, the device cannot be connected to the wireless LAN access point.

  • Page 108: Fuse Checking

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.6 Fuse Checking If any of the following errors occurs, check the corresponding fuse on the CU/PU control Fuse Name Error Description Insert Point Resistance board or or Scanner board aor high voltage power supply board. (Refer to following Table) Scanner board JAM <0103>...

  • Page 109: Paper Cassette Switches And Paper Size Correlation Table

    2. TROUBLESHOOTING PROCEDURES Oki Data CONFIDENTIAL 2.7 Paper cassette switches and paper size correlation table (1) Source tray Switch Part No. 2052000P4000 Model No: HS12-001 Bit Number Dial Indication Size TRAY1 TRAY2/TRAY3/TRAY4 No cassette No cassette A4 LEF Other Other...

  • Page 110: Maintenance Menus

    Oki Data CONFIDENTIAL MAINTENANCE MENUS The Printer can be adjusted by using Maintenance Utility, or button operation on its operator panel. On the panel, maintenance menus are provided in addition to general menus. Select the menu intended for each adjustment purpose.

  • Page 111: Maintenance Menu

    However, operation when JP1/JPOEM/OEMA/OEML is chosen is not guaranteed. The display condition of the menu is following two. ① "System Maintenance" - "OKIUSER" is other than JPOEM1, OEMA or OEML ② "Manufacturer" is "OKI DATA CORP". Format HDD Formats HDD. Format Flash Formats flash memory.
  • Page 112 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Default Default Default Item1 Item2 Item3 Item4 Item5 Value value value value Notes Password System Test Print Enable Switches between displaying and not displaying the "ID Check Maintenance Menu Disable Pattern" and "Engine Status" in the "Report" - "Print" category (default: Disable).
  • Page 113 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Default Default Default Item1 Item2 Item3 Item4 Item5 Value value value value Notes Password Panel LCD Test LCD Single Full-Screen Maintenance Blue Full-Screen Gray50 Full-Screen Gray75 Full-Screen Magenta Full-Screen Cyan Full-Screen Yellow Standby Screen...
  • Page 114 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Default Default Default Item1 Item2 Item3 Item4 Item5 Value value value value Notes Password Scanner Adjust Scan Side Reg. +30~ -17 mm Adjusting the position of the scanning start pixel by one Step=4/600 Maintenance...
  • Page 115 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Default Default Default Item1 Item2 Item3 Item4 Item5 Value value value value Notes Password Scanner Adjust Mech. Adjust ADF ADF Hopping 10 ~ 1400 [mA] 960 [mA] 960 [mA] Maintenance Motor Drive 300Color Current...
  • Page 116 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Default Default Default Item1 Item2 Item3 Item4 Item5 Value value value value Notes Password Scanner Adjust GAIN FB/ADF Initial Red GAIN 0 ~ 1023 Maintenance GAIN Green GAIN 0 ~ 1023 Bule GAIN 0 ~ 1023...
  • Page 117 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Default Default Default Item1 Item2 Item3 Item4 Item5 Value value value value Notes Password Scanner Mechanical ADF Test Simplex/ Simplex Conduct mechanical testing (without reading an image). Maintenance Test Duplex Duplex ADF : Test moving original document (stops when set document has been moved) May choose from single- or double-sided feeding.
  • Page 118 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Default Default Default Item1 Item2 Item3 Item4 Item5 Value value value value Notes Password Scanner Mechanical ADF Hopping Forward Test the ADF Hopping motor ① After a short press of the button, rotate in the CW direction for 10...
  • Page 119 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Default Default Default Item1 Item2 Item3 Item4 Item5 Value value value value Notes Password Country Code U.S.A. Japan When the desired country code is selected by this setting, the PTT International Maintenance parameters that are suited to the target country are set.
  • Page 120 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Default Default Default Item1 Item2 Item3 Item4 Item5 Value value value value Notes Password Line Test Modem V.34 (33.6Kbps) Modem-signal send test conducted. Maintenance Signal V.34 (28.8Kbps) 11 types available, including V. 34 (33.6 Kbps).

  • Page 121: Service Bit Menu

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.2 Service Bit Menu Additional Fax Setting menu Item Settings Description (When setup ServiceBit=ON, the following items will be displayed at Admin Setup → Fax Calling Timer 1~255 second Sets the call connection wait Depends on Country Setup →...

  • Page 122: Maintenance Utility

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.3 Maintenance Utility The adjustments described in table 3-1 should be made by using Maintenance Utility. Details Section in Operation from on the utility are as follows: Maintenance operator panel Item Adjustment Utility (section in this...

  • Page 123: Self-Diagnostic Mode

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.4 Self-diagnostic mode (1) Menu option display switching Use the [4] or [*] or [2] or [8] button to display the option shown in a LEVEL0 shaded area XXXX . This section describes LEVEL 0 and LEVEL 1.
  • Page 124 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL (1) Menu option display switching LEVEL1 Use the [2] or [8] button to select the option shown in a shaded area ( XXXXX ), and press [6] to execute the option. Use [6] or [4] to display the option shown in a non-shaded area ( XXXXX ), and use the [2] or [8] button to select the option.

  • Page 125: Normal Self-Diagnostic Mode (Level 1)

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.4.2 Normal self-diagnostic mode (Level 1) 3.4.2.1 Entering self-diagnostic mode (level 1) Note! Entering the System Maintenance mode of MC853/MC873/ES8453/ES8473 The normal self-diagnostic mode menus are as follows: requires a password. Refer to 3.1 Maintenance Menu for description on it.

  • Page 126: Switch Scan Test

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.4.3 Switch scan test Planar Heater Thermistor Upper Center Thermistor Exit2 Sensor The switch scan test is used for checking entrance sensors and switches. M Toner Sensor Fuser-IN Sensor Upper Side Thermistor Y Toner Sensor...
  • Page 127 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Table 3-3 SWITCH SCAN Detail Lower display shows asterisk (*) when function on upper display is unavailable. Upper display Detail Lower display Detail Lower display Detail Lower display Detail Lower display H: No paper exists.
  • Page 128 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Upper display Detail Lower display Detail Lower display Detail Lower display Detail Lower display H: No paper exists. T4 PE TRAY4 Paper End Sensor L: Paper exists. H: No paper exists. H: No paper exists.

  • Page 129: Motor And Clutch Test

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.4.4 Motor and clutch test Color Regist solenoid 2bin Solenoid ID Motor FAN Belt Motor ID Motor The motor and clutch test is used for testing motors and clutches. Fuser side FAN 1. Enter the self-diagnostic mode (level 1) and, until MOTOR & CLTCH TEST...
  • Page 130 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Table 3-4 Panel display Driven unit Condition Panel display Driven unit Condition 2BIN SOLENOID Second Bin Solenoid Second Bin unit is installed ID MOTOR ID MOTOR All ID(K/Y/M/C) are removed ID UP/DOWN Tray1 Hopping Motor...

  • Page 131: Test Print

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.4.5 Test print Display Settings Default Function PRINT Starts printing with the press of the [6] The test printing is used for printing test patterns stored in the PU. Other patterns are stored EXECUTE button, and ends printing with the press of the in the controller.
  • Page 132 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Notes! PAGE setting: MEDIA WHIGHT The input position is shifted with the [*] button or [#] button. This setting is Category Setting value incremented by pressing the [2] button, and decremented by pressing the [8]...
  • Page 133 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 4. When the [6] button is pressed With PRINT EXECUTE on the lower display after the operation in step 2, test printing with the setting value set in the steps 2 to 3 is executed.
  • Page 134 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL • The following message appears when a test pattern is printed. • The displays are switched to the following by pressing the [2] button. KR=*.** YR=*.** P=*** W=*** MR=*.** CR=*.** P: Number of test-print pages (Unit: sheets)

  • Page 135: Color Registration Adjustment Test

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL • The displays are switched to the following by pressing the [2] button. 3.4.6 Color registration adjustment test The color registration adjustment test is used for adjusting color registration or investigating BELT=xxx(***) the cause(s) of color misregistration. Chapter 2 about description on color registration adjustment should be followed for recovery from an error caused by the test.
  • Page 136 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL When the displayed option is REG ADJ RESULT: Panel display at the completion of color registration correction test Same as of REG ADJ EXECUTE Upper display Lower display Details OK / ERROR NAME REG ADJ RESULT/ Displays only “OK”...
  • Page 137 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Display Items of REG ADJUST RESULT Upper display Lower display Details Memory Upper display Lower display Details Memory CRSE ADJ C [X] ***, ***, *** Cyan LED coarse adjustment pattern detection value SRAM at the main scanning position...
  • Page 138 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Display Items of REG BELT REFLECT RESULT Upper display Lower display Details Memory L-SIDE= ** MAX=*** Upper display: Displays a test result on the left SRAM AV= *** MIN=*** side (OK or NG). Displays the average of the sensor output ADC...

  • Page 139: Density Adjustment Test

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.4.7 Density adjustment test When DENS ADJ PAR-SET is executed: The setting for the density adjustment parameter is displayed. The density adjustment test is used for performing a density adjustment function test and displaying the result of it to judge whether the density adjustment mechanism is proper.
  • Page 140 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Display at the completion of density adjustment test Display Items of DENS ADJ RESULT Upper display Lower display Details Upper display Lower display Details Memory LEV0 V/D OUT YMC V1=***H V1=***H: Color density sensor output when...
  • Page 141 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL Upper display Lower display Details Memory Upper display Lower display Details Memory L_DUTY DENS-M V01=***HS01=***H 01-03:First processing for averaging SRAM DELTA-C 01=**** 02=**** 03=**** 01:Light adjustment value [DEC] SRAM density 02: DB adjustment value (First)[ DEC]...

  • Page 142: Consumable Counter Display

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.4.8 Consumable counter display Upper Display Lower Display Format Unit Detail The consumable counter display is used for viewing the usage of consumables. K-TONER ******** % Each displays the usage of toner (FULL) of a color.

  • Page 143: Print Counter Display

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.4.9 Print counter display 3.4.10 Factory-Shipping mode switching The print counter display is used for viewing print counter values. The Factory-Shipping mode switching is used for switching from the Factory to Shipping mode. 1. Enter the self-diagnostic mode and, until PRINTER STATUS appears, press the [2] or [8] button (the [2] button displays the next test option and the [8] button 1.

  • Page 144: Self-Diagnostic Function Setting

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.4.11 Self-diagnostic function setting Option Set Settings Setting Operation Function The self-diagnostic function setting is used for enabling or disabling the error detection by REG ADJUST ENABLE Display Sets whether to display or non- sensors.

  • Page 145: Led Head Serial Number Display

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.4.12 LED head serial number display 3.4.13 Drum Manual Cleaning The LED head serial number display is used for viewing whether downloaded data about This function is used for cleaning drums by wiping with alcohol.

  • Page 146: Functions Of Buttons After Power-On

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.4.14 Functions of buttons after power-on After the printer is turned on, buttons on the operator panel of MC853/MC873/ES8453/ ES8473 function as described below. When held down until the upper and lower displays on...

  • Page 147: Setup After Part Replacement

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.5 Setup after part replacement The following describes the adjustments necessary after part replacement: When the information of EEPROM on PU cannot be taken out, make a setting of the serial number on PU (Refer to Maintenance Utility Operating Manual.)
  • Page 148 3. MAINTENANCE MENUS Oki Data CONFIDENTIAL • To assign a PU serial number to the printer, in the PU serial number setting Note! Replacing the EEPROM (the PU control board) with a new one clears life window, enter ten characters. As shown in the following serial number information about consumables, including the belt, and toner.

  • Page 149: Notes On Hdd Replacement

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.5.2 Notes on HDD replacement When the HDD to be removed, after install the HDD and execute the [Password]- [System Maintenance]-[Format HDD] in "3.1 Maintenance Menu". Update the firmware, for using the [FW Update Tool] . Install the all language files to HDD, when update the firmware.

  • Page 150: Manual Density Adjustment Setting

    3. MAINTENANCE MENUS Oki Data CONFIDENTIAL 3.6 Manual density adjustment setting MC853/MC873/ES8453/ES8473 is shipped with the auto density adjustment mode enabled. When the mode is disabled by a user, the printer may print density out of adjustment while being used. Manually perform density adjustment setting when the printer prints an improper density.
  • Page 151 Oki Data CONFIDENTIAL REPLACEMENT OF PARTS This chapter describes the procedures of the field replacement of parts, assemblies and units. The procedures are to detach them. Reverse the procedures to attach them. The reference part numbers used in this manual (such as ① and ② ) do not identical to the part numbers in the maintenance disassembly configuration diagram 45850101TL and the RSPL 45850101TR.
  • Page 152 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.1 Notes on replacement of parts (1) Prior to replacing a part, unplug the AC cord and the interface cable. (2) Do not disassemble the MFP so long as it operates properly. (a) Be sure to use the following procedure to unplug the AC cord: (3) Minimize disassembly.
  • Page 153 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL Maintenance Tools: Table 4-1-2 shows the tools necessary to use Maintenance Utility software. Table 4-1-1 shows the tools necessary to replace printed-circuit boards and units. Table 4-1-2: Maintenance Tools Maintenance Tool Quantity Remarks...
  • Page 154 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2 Part replacement procedure (3) Remove the four image drums ① . This section describes the procedure for replacing the parts and assemblies shown in the disassembly diagram. ① 4.2.1 Belt unit (1) Open the scanner unit and pull the front cover open lever to open the front cover Black paper forward.
  • Page 155 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.2 Fuser unit (1) Open the front cover and the top cover. (Refer to section 4.2.1) (2) Pull the fuser unit locking lever (blue) in the direction of the arrow and detach the fuser unit ①...
  • Page 156 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.3 Cover side-L-upper / Cover side-L 4.2.4 Cover side-R-upper / Cover side-R (1) Remove the image drum unit/belt unit. (Refer to section 4.2.1) (1) Remove the image drum unit/belt unit. (Refer to section 4.2.1) (2) Detach the fuser unit.
  • Page 157 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (6) Open the face-up stacker cover and remove the two screws (black) ③ . 4.2.5 Rear cover Assy. (1) Slide out the Duplex unit ① from the Main body of MFP . Face-up stacker ①...
  • Page 158 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ③ 4.2.6 Duplex Unit (1) Slide out the Duplex unit from the Main body of MFP . (Refer to section 4.2.5) ③ (2) Turn over the Duplex unit. (3) Remove four screws(black) ① to detach the cover ② , and remove four ③...
  • Page 159 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (3) Remove the two Spring-Heads ③ with twisting to right turn. 4.2.7 LED Assy. / Spring-Head (1) Remove the image drum unit. (Refer to section 4.2.1) (2) Remove the FFC cable, and as shown in figure (1), unhook the part A by applying force in the direction of the arrow and then the portion B to detach the LED Assy ①...
  • Page 160 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (5) Disconnect each connector and FFC cable from the Main board ④ . 4.2.8 Main board (board Assy-6CU) / Board memory (6) Remove the screw (silver) ⑤ , three screws (silver) ⑥ , and Main board ④ .
  • Page 161 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL SCNOP SUPOW SATAPOW SIDEFAN SSNS SUIF B2IF EXROM PE_HOP FSNS HOPCL IDFAN Board-6CU HVOLT RELAY Figure 4-2-7-1 Main Board Assy., Cable Route Diagram Figure 4-2-7-2 Main Board Assy., Outline Drawing 4-11 45850101TH Rev.1...
  • Page 162 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.9 HDD Assy / Plate Assy.-Sensor / Stapler Unit (1) Remove the plate shield (Refer to section 4.2.8). (2) Disconnect the cable of the HDD Assy ① from the Main board. (3) Remove the three screws(silver) ② , and up slightly to detach the HDD Assy ① .
  • Page 163 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.10 Scanner Unit / Cover-Hinge(L) / Cover- (3) Detach the plate shield. (Refer to section 4.2.8) (4) Detach the Cover-side-L-upper. (Refer to section 4.2.3) Hinge(R) (5) Close the Front-cover and Cover-top. (1) Remove a screw (black) ① and detach the Cover-Bottom-Sub ② .
  • Page 164 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (7) Slide the Cover-Hinge(L) ⑦ to forward of the machine and remove it. (8) Slide the Cover-Hinge(R) ⑧ to forward of the machine and remove it. ⑧ ⑦ 4-14 45850101TH Rev.1...
  • Page 165 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (4) Remove the cover-ADF-R ① in the direction of the arrow. 4.2.10.1 Tray-Assy-Document/Cover-ADF-R (1) Open the ADF-Unit. ② (2) Unlatch the four claws of cover-ADF-R ① . Claw (5) Open the Cover-assy-top-ADF, and release the post of the portion A.
  • Page 166 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.10.2 Tray-Assy-Document 4.2.10.3 Damper Assy-L/R (1) Remove the six screws (black, No:42932708) ① and Cover-Tray-document ② . (1) Remove the scanner unit. (See to 4.2.10) (2) Remove the Lever-Tray ③ and photo-sensor ④ .
  • Page 167 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (4) Open the ADF-unit ④ while pushing the portion A. 4.2.10.4 ADF-unit / CONN Cord / Film-Guard(L) / Film- Guard(R) (1) Remove the cover-ADF-R. (See 4.2.10.1) (2) Disconnect a connector of the CONN Cord ① from the ADF relation board(7RL), remove the screw (silver, No:42920406) ②...
  • Page 168 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (5) Remove the ADF-unit ④ with pull the cables to out of the Frame-Base(ADF) and (6) Remove the CONN Cord ① and ③ from the Flatbed-unit. Hinge. (7) Remove the Film-Guard(L) ⑤ and the Film-Guard(R) ⑥ from the Flatbed-unit.
  • Page 169 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.10.5 Sheet-document/Paper-weight-Assy/Spring- <Attention of fixing the sheet-document> (1) Degrease the affix area of ADF-unit. PW-ADF (2) Remove the release paper. (1) Open the ADF-unit. (3) Set the sheet-document ① (see the figure below).
  • Page 170 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.10.6 Hinge-Assy-L / Hinge-Assy-R (1) Remove the ADF-unit and turn over it. (See the section 4.2.10.4) (2) Remove the three screws (black, No:42932708) ① and remove the hinge- Assy-L ② . (3) Remove the three screws (black, No:42932708)③ and remove the hinge-Assy-R ④.
  • Page 171 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (2) Remove the four claws and remove the Cover-front(Upper) ① . 4.2.10.7 ADF-Assy (3) Remove a screw (silver, No:42920406) ② and remove the ADF board ③ . (1) Open the ADF-unit, and open the Guide-Assy-Exit(Lower) by to rotate the lock (4) Remove the four screws (black, No:42932706) ④...

  • Page 172: Guide-Retard / Cover-Assy-Top-Adf / Motor /Conn Coard / Clutch Photo-Sensor

    4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.10.8 Guide-Retard / Cover-Assy-Top-ADF / Motor / CONN Coard / Clutch / Photo-sensor (1) Remove all cables from Guide-Cable-ADF ① and remove it. (2) Remove two screws(silver) ② and remove the plate-clutch ③ .
  • Page 173 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.10.9 Frame Assy.-Hopping(ADF) (1) Open the Cover-Assy-Top-ADF. (2) Open the Cover-Lock and slide to left side the Frame Assy.-Hopping(ADF) ① and remove it. Notes on assembling: ① When assembling the Frame Assy.-Hopping(ADF) ① , refer the following steps.
  • Page 174 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.10.10 Guide Assy.-Top / Board Assy.-6JC (1) Remove Cover-Assy-Top-ADF (See 4.2.10.8). (2) Remove the six screws (black) ① , and remove Guide Assy.-Top(B) ② and Cover- Top(ADF-Sub) from Cover-Top(ADF) assembled to Cover-Assy-Top-ADF. (3) Remove six screws (black) ③ and remove Guide Assy.-Top(A) ④ from Cover- Top(ADF).
  • Page 175 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.10.11 Guide-Assy-Retard 4.2.10.12 Flatbed-Unit (1) Remove the eight claws and remove the Guide-Retard(sub) ① . (1) Remove the three screws (black, No:42932708) ① and remove the cover- Bottom ② . (2) Remove the Cover-Retard(ADF) ② .
  • Page 176 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.10.13 Frame-assy-FB ⑲ (1) Remove the four screws (black, No:42932708) ① and remove the five screws (silver, No:42920406) ② , and remove the plate-shield(SU) ③ . (2) Remove the all SU-board and FAX-board cables and FFC ④ .
  • Page 177 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL [How to remove Battery on SU-Board] (2) How to remove the battery. Insert finger, a needle or a rod in the gap between the battery and the its (1) The position of the battery is shown in the below figure.
  • Page 178 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.11 Frame-Assy.-OP (1) Unlatch four claws to remove the Cover-Top-Base ① . (2) Remove the four screws ② and rotate to remove the Plate-Base ③ with ④ the Plate-Support and the Cover-Bottom-Base. (3) Remove eight claws to remove the Cover-Sheet ④ and remove the Sheet- OP ⑤...
  • Page 179 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.12 2bin Assy. / Guide Assy.-2Bin / Stacker Assy.-2Bin (1) Remove the Cover-side-L, Cover-rear and Plate-shield. (Refer to section 4.2.8) (2) Open the Guide-2bin-rear and remove the four claws and 2bin-Cover ① .
  • Page 180 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (6) Disconnect the cables from the Board 7RL-2 ⑧ , and remove the Stacker Assy.- (10) Remove six screws(black 10mm) ⑬ to detach the Cover-Bottom. 2Bin ⑥ from Guide Assy.-2Bin ⑦ . (11) Detach the Stacker-Sub(clear) to remove the Board Assy.-1LD ⑭ with a cable ⑮ .
  • Page 181 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.13 Top cover Assy. (9) Open the front cover and the top cover. (Refer to section 4.2.1) (10) Pull and unlatch the end of the printer-section side of the Arm-Link from the Shaft (1) Remove the image drum unit/belt unit.
  • Page 182 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (11) Remove the three screws (silver) ④ and the plate FFC ⑤ . (15) Hold the top cover Assy ⑧ and lift it to detach. (12) Detach the Cable-Assy-Head, and disconnect the four head FFC cables ⑥ and the RFID-FFC cable ⑦...
  • Page 183 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (4) Remove the two screws (silver) ③ and the plate shield FFC ④ . 4.2.14 Cable-Assy-Head / Lever-SNS / Photo Sensor (5) Remove the four screws (black) ⑤ and the head holder Assy. ⑥ .
  • Page 184 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (6) Remove the two screws (silver) ⑦ and the Cable-Assy-Head ⑧ . (7) Remove a Lever-SNS ⑨ , and remove a Photo Sensor ⑩ and a cable ⑪ ⑪ ⑩ ⑦ ⑧ ⑦...

  • Page 185: Plate-Stay(L)

    4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.15 Plate-Stay(L) 4.2.16 Plate-Stay(R) / Plate-Board-R-Assy / Plate- Support(Stay) (1) Remove the scanner unit. (See to 4.2.10) (2) Detach the Cover-Stay-L. (See to 4.2.13) (1) Remove the scanner unit. (See to 4.2.10) (3) Pull and unlatch the end of the printer-section side of the Arm-Link from the Shaft (2) Detach the Cover-Stay-R.
  • Page 186 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (9) Remove the nine screws (silver) ⑤ and detach Plate-Board-R-Assy ⑥ . (10) Remove the four screws (silver) ⑦ and detach Plate-Support(Stay) ⑧ . ⑦ ⑥ ⑧ ⑤ 4-36 45850101TH Rev.1...

  • Page 187: Front Cover Assy

    4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.17 Front cover Assy. (1) Pull the cassette ① out of the MFP . ① ⑤ Main board ⑤ FG cable ④ ⑦ ③ ⑥ ② (2) Remove the image drum unit/belt unit. (Refer to section 4.2.1) (3) Detach the cover side-L Assy.
  • Page 188 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.18 Guide Assy.-eject 4.2.19 Post-fuser-lock (1) Detach the top cover Assy. (Refer to section 4.2.13) (1) Remove the fuser. (Refer to section 4.2.2) (2) Disconnect the eject three cables ① . (2) Remove the post-fuser ① .
  • Page 189 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.20 Relay board (P6Z) / contact Assy. / Sensor Assy. Fuser-A ① (1) Remove the image drum unit/belt unit. (Refer to section 4.2.1) (2) Detach the cover side-L Assy. (Refer to section 4.2.3) ②...
  • Page 190 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (8) Disconnect the right and left FFC connectors ⑥ and the three connectors ⑦ from (9) Remove the three screws(silver) ⑫ to remove the Sensor-Assy.-Fuser-A from the the relay board (P6Z) ⑧ and the connector ⑨ from the high-voltage power supply Sensor-Assy.-Regist ⑪...
  • Page 191 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (11) Remove the two screws (silver) ⑰ and the contact Assy. ⑱ . (12) Remove the screw (silver) ⑲ and the fuser sensor Assy. ⑳ . (13) Remove the photosensor  . ⑰...
  • Page 192 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.21 High-voltage power supply board (1) Remove the image drum unit/belt unit. (Refer to section 4.2.1) (2) Detach the cover side-L Assy. (Refer to section 4.2.3) (3) Remove the three screws (black) ① and a screw (silver) ② , release the high- voltage power supply board ③...

  • Page 193: Frame Assy.-Front

    4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.22 Frame Assy.-Front (3) Open the paper set cover. (1) Turn off the MFP and open the MP tray forward by inserting your fingers into the front recesses. Paper set cover MP tray (2) Release the tab of the paper feed roller cover by pressing the right arm inward while lifting up the MP tray lightly.
  • Page 194 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (4) Release the cover AssyMPT ① at the left side first and then the right side. (Be (7) Remove the seven screws ⑤ and detach the plate-front-FG ⑥ . careful not to deform the spring on the right-lower end side.) (8) Remove the five screws ⑦...

  • Page 195: Roller Assy.-Registration

    4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.23 Roller Assy.-registration (1) Detach the front cover Assy. (Refer to section 4.2.17) (2) Remove the three screws (silver) ① and pull out the gear Assy. hopping ② . ⑥ (3) After detaching the cover gear MPT ③ , remove the two screws (silver) ④ and detach the gear Assy.

  • Page 196: Roller-Feed, Roller-Pickup, Frame Assy.-Pickup,And Holder Sensor Assy

    4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (4) Remove the roller-feed ④ and the roller-pickup ⑤ . 4.2.24 Roller-feed, roller-pickup, frame Assy.-pickup, and holder sensor Assy. (1) Remove the roller Assy.-registration. (Refer to section 4.2.23) (2) Remove the spring-pickup ① .
  • Page 197 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (5) Remove the E-ring ⑥ , the clutch hopping ⑦ , bearing ⑧ . (6) Remove the gear-feed ⑨ , bearing ⑩ , E-ring ⑪ . (7) Remove the shaft hopping ⑫ and frame-Assy.-pickup ⑬ .

  • Page 198: Low-Voltage Power Supply Assy

    4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (3) Disconnect the two cables ③ . 4.2.25 Low-voltage power supply Assy. Electric shock hazard. Be sure to unplug the AC cable as some circuits keep working while the power cable is connected even after the power is turned off.
  • Page 199 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (4) Remove the two screws (silver) ④ and detach the low-voltage power supply Assy. ⑤ with disconnecting of the cable ⑥ of Plate Assy.-Conecter and the cable ⑦ to the main board. ⑥...

  • Page 200: Motor Assy.-Belt And Motor Assy-Id

    4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (5) Remove the two screws (silver/8mm) ④ and detach the cover gear belt ⑤ . 4.2.26 Motor Assy.-belt and motor Assy-ID (1) Remove the main board Assy. (board Assy-6CU). (Refer to section 4.2.8) (2) Remove the Plate-Stay(R), Plate-Board-R-Assy and Plate-Support(Stay).
  • Page 201 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (7) Remove the gear-idler-A ⑧ , the gear-idler-B ⑨ , and the gear-reduction ID ⑩ . (9) Remove the four screws (silver/8mm) ⑬ and detach the motor Assy-ID ⑭ . ⑩ ⑭ ⑧...

  • Page 202: Motor Dc-Fu (Fuser Motor) / Plate Cover Fu

    4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.27 Motor DC-FU (fuser motor) / Plate cover FU (1) Detach the guide Assy.-eject. (Refer to section 4.2.14) (2) Remove the two screws (silver) ① and the plate cover FU ② . (3) Remove the four screws (silver/8mm) ③ and the motor DC-FU ④ .
  • Page 203 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (3) Remove the E-ring ③ , gear lift-up C/D ④ and the shaft lift-up ⑤ . 4.2.28 Side-R Assy. and side-L Assy. (1) See sections 4.2.1 to 4.2.26. (2) Remove the three screws (silver) ① and the gear Assy. image drum lift-up ② .
  • Page 204 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (4) Remove the screw (silver) ⑥ and the three round-head screws (black) ⑦ and (5) Remove the two screws (silver) ⑩ and the three round-head screws (black) ⑪ and detach the plate guide belt ⑧ and the plate base registration ⑨ .
  • Page 205 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (6) Remove the three screws (silver) ⑬ and detach the plate-beam-front ⑭ . (8) Remove the eleven screws, ten screws (silver) ⑲ and the screw (black) ⑳ that are fixing the plate base ⑯ and both of the plate Assy. side-L ⑰ and -R ⑱ , and detach the plate Assy.
  • Page 206 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (3) Bend the protrusion on both side of the cover ④ on the paper cassette, and open 4.2.29 Feed rollers (Tray 1/2/3/4) the cover ④ by turning the cover ④ to the direction of in following figure.
  • Page 207 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL Notes on attaching paper feed rollers: Notes on attaching a separation roller: 1. Insert a new paper feed roller (with a gear) ③ onto the inside shaft and turn it all 1. Put the spring ⑥ onto the boss on the rear of the separation roller ⑤ , and push the bearing of the separation roller ⑤...
  • Page 208 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.30 Paper feed rollers (MPT pick-up roller/MPT (3) Open the paper set cover. feed roller/MPT retard roller) (1) Turn off the MFP and open the MP tray forward by inserting your fingers into the front recesses.
  • Page 209 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (5) While pressing both the separation roller cover and the protrusion of the lower Notes on attaching paper feed rollers: MPT feed roller (with gear) ② outward, slide the feed roller to the left hand side to 1.
  • Page 210 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.31 Fuser Connector (1) Remove Image Drum Units, the Belt Unit and the Fuser Unit. (Refer to section 4.2.1 and 4.2.2) (2) Remove the Cover-Side-L Assy.(Refer to section 4.2.3) (3) Remove the cover Assy.-registration.(Refer to section 4.2.16) (4) Remove cables and two screws(silver) ①...

  • Page 211: Guide Assy.-Side-L / Rack-L

    4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.2.32 Guide Assy.-Side-L / Rack-L 4.2.33 Guide Assy.-Side-R / Rack-R (1) Refer to section 4.2.27. (1) Refer to section 4.2.27. (2) Remove four screws(silver) ① to detach Guide Assy.-Side-L ② and Rack-L ③ .
  • Page 212 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL (3) Detach the Shoulder-Lock ② from the Cover-FaceUP-B ① by using the tool whose 4.2.34 Cover-FaceUP-B head is flat(ex. flat-blade screwdriver), and remove two Support-Papers ③ . (1) Open the Cover Assy.-FaceUP .
  • Page 213 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.3 Portions Lubricated Portions lubricated are shown in this section. The other portions must not be lubricated. Lubrication is not required during assembly or disassembly, except that the lubricant specified must be applied to portions from which lubricant was wiped.
  • Page 214 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ② Guide Assy.-Side-R 4.3.1 Printer section ① Plate Assy.-Side-L OR-Board Assy.-TSA Apply a small amount of MOLYKOTE (EM-30LP) 26 positions Rack-L EM-30LP Class A Side surface EM-30LP Class A Side surface EM-30LP Class A...
  • Page 215 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ③ Gear Assy.-Hopping ④ Gear Assy.-MPT Plate-MPT-B Bush-FU Gear-Hopping-B Apply a normal amount of Gear-Hopping-A MOLYKOTE (EM-30LP) (2 positions). Class C Gear-MPT-B Plate-Hopping-Caulking Gear-MPT-A Apply a normal amount of MOLYKOTE (EM-30LP) to the hatched portions.
  • Page 216 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑤ Gear Assy.-ID-Liftup ⑥ -1 Plate Assy.-Side-R Bush-FU Apply a normal amount of Apply a normal amount of MOLYKOTE (EM-30LP) MOLYKOTE (EM-30LP) (Flange/Inner diameter of bush) Class A Class C Bush-FU Plate-liftup-B-Caulking Gear-liftup-B...
  • Page 217 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑥ -2 Plate Assy.-Side-R ⑥ -3 Plate Assy.-Side-R Bush-FU Gear-FU-A Apply MOLYKOTE (HP300) (normal amount) to the shafts. Class C Plate-Fuser-Caulking Apply a normal amount of MOLYKOTE (EM-30LP) Apply a normal amount of to the hatched portions.
  • Page 218 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑥ -4 Plate Assy.-Side-R ⑥ -5 Plate Assy.-Side-R Apply a normal amount of MOLYKOTE Apply a normal amont of MPLYKOTE (EM-30LP) to the hatched portions Expanded view (EM-30LP) to the hatched portions (The reverse side of...
  • Page 219 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑥ -6 Plate Assy.-Side-R ⑥ -7 Plate Assy.-Side-R Apply a small amount of MOLYKOTE (EM-30LP) Class A Expanded view Apply a small amount of MOLYKOTE (EM-30LP) Class A Apply a normal amount of MOLYKOTE (EM-30LP) to the hatched areas.
  • Page 220 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑥ -8 Plate Assy.-Side-R ⑦ -1 Roller Assy.-Regist Holder-Assy-Regist-4 Gear-Reduct-ID Apply a normal amount of MOLYKOTE (EM-30LP) to the hatched areas Class C Holder-Assy-Regist-3 Apply a large amount of MOLYKOTE (EM-30LP) to the hatched areas )
  • Page 221 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑦ -2 Roller Assy.-Regist ⑦ -3 Roller Assy.-Regist Apply a normal amount of MOLYKOTE (EM-30LP) to the hatched area. Class C Gear-Z24-OW Gear-Idle-Z26 Holder-Assy-Regist-2 Holder-Assy-Regist-1 Apply a normal amount of MOLYKOTE (EM-30LP) to the hatched portions.
  • Page 222 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑧ -1 Guide Assy.-Eject_Upper ⑧ -2 Guide Assy.-Eject_Upper Pitch-Roller-Backet Apply a small amount of HANARL (SF-133) to the hatched areas. (2 positions) Class A Apply a small amount of HANARL (SF-133) to the hatched areas.
  • Page 223 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑨ Guide Assy.-Eject Apply HARVES MDF-1207 all round. 4-73 45850101TH Rev.1...
  • Page 224 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑩ Sensor-Assy-Regist ⑪ Frame Assy OR-Board Assy. -P6Z (Soldering side) Apply a normal amount of MOLYKOTE (EM+30LP) to the posts Class C (3 positions) After polish the terminals to luster with BEMCOT M-3,...
  • Page 225 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑫ -1 Cover-Assy-TOP ⑫ -2 Cover-Assy-TOP Plate-Assy.-Inner Spring-Torsion PM is applied to the portion of the slot of solidcoiling of this torsion springs using a brush. (Left and Right both) Class C Apply a normal amount of MOLYKOTE...

  • Page 226: Cassette Assy

    4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑬ Cassette Assy. Apply normal amount of MOLYKOTE (EM-30LP) to the hatched area. Class B (2 positions) Grease inside of this area. Plate Assy.- Receive-PX756 (2 positions) Plate Assy.-Receive-PX756 Case-Cassette 4-76 45850101TH Rev.1...
  • Page 227 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑭ -1 Printer Unit ⑭ -2 Printer Unit Cover-Assy.-Rear Cover-Assy.-Top TETRA-C9300 is soaked into BEMCOT- Rear side Front side M3, and sreads on each terminal of K, Y, of printer of printer M and C. (Class S) Do not adhere it to other parts, espcially LED head.
  • Page 228 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ② Guide Assy.-2Bin 4.3.2 2bin section ① Guide Assy.-2Bin Apply HARVES MDF-1207 to the gray-area of the Pinch-Roller-Bracke_ Gear-Connect 8 pieces Gear-Idle-Eixt(Z28) HARVES MDF-1207 Apply HARVES all round. 4-78 45850101TH Rev.1...
  • Page 229 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4.3.3 Scanner section 1) Plate-Pulley(Caulking) ① -1 Frame Assy.-FB Gear-Idle Gear-Pulley Plate-Pulley(Caulking) Without the internal perimeter HARVES MDF-1207 surface grease adhesion Apply HARVES all round. Gear-Pulley HARVES MDF-1207 Apply HARVES all round. Gear-Idle HARVES MDF-1207 Apply HARVES all round.
  • Page 230 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ② Hinge-Assy.-(L) 1) Slider-Hinge(ADF) Hinge-Assy.-(R) EM-D110 Class C Apply a normal amount of MOLYKOTE (EM-D110) to the hatched area. Slider-Hinge(ADF) EM-D110 Class C Apply a normal amount of MOLYKOTE (EM-D110) to the hatched 8 ribs.
  • Page 231 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ③ Tray-Assy-Document 2) Guide-Document-R Without the upper surface grease adhesion 1) Guide-Document-F Without the upper surface grease adhesion HARVES MDF-1207 Apply HARVES MDF-1207 all round of hatching arera HARVES MDF-1207 Apply HARVES MDF-1207...
  • Page 232 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ④ Frame-Assy.-Hopping(ADF) ⑤ Cover-Assy-Top(ADF) HARVES MDF-1207 All around Apply HARVES MDF-1207 all around of Shaft-Press (4 pcs) HARVES MDF-1207 All around Apply HARVES MDF-1207 all around of Gear-Planet (3 pcs) Leave it for about 3minutes (drying time) after painting HARVES MDF-1207, and then assemble the Gear-Planet.
  • Page 233 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑥ Guide Assy.-Top(B) ⑦ Guide Assy.-Retard HARVES MDF-1207 All around HARVES MDF-1207 All around Apply HARVES MDF-1207 all around Apply HARVES MDF-1207 all around of Shaft-Press (4 pcs) of Shaft-Press (4 pcs) Leave it for about 3minutes (drying time) after painting HARVES MDF-1207, Leave it for about 3minutes (drying time) after painting HARVES MDF-1207, and then assemble the rollers.
  • Page 234 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑧ Guide Assy.-Exit(Lower) ⑨ Roller-Assy-Eject(ADF) HARVES MDF-1207 All around Apply HARVES MDF-1207 all around MOLYKOTE (D110) Class B of Shaft-Press (4 pcs) Apply a little amount of MOLYKOTE (D110) to the hatched area.
  • Page 235 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑩ Clutch-Assy-Hop(ADF) ⑪ ADF-Assy 1) Shaft-Press HARVES MDF-1207 Apply HARVES MDF-1207 to gear teeth only of Gear-Clutch(Z27) HARVES MDF-1207 All around Apply HARVES MDF-1207 all around of Shaft-Press (4 pcs) Leave it for about 3minutes (drying time) after painting HARVES MDF-1207, and then assemble the roller.
  • Page 236 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 2) Plate-Front(Caulking) 3) Plate-Drive(Caulking) Gear-Regist HARVES MDF-1207 All around of shaft Apply HARVES MDF-1207 to 45831901 Plate-Front(Caulking) Especially, to the shaft. HARVES MDF-1207 All around of shaft Apply HARVES MDF-1207 to 45831901 Plate-Front(Caulking) Especially, to the shaft(4 portions).
  • Page 237 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL 4) Gear-Double(Z46-34) 6) Gear Apply to 1 place with range 10mm or more. (The application place is arbitrary) HARVES MDF-1207 all around Apply HARVES MDF-1207) to all around It is application to a state without a lump jumping of Gear-Double(Z46-34), out of an Gear tooth top, the tooth bottom.
  • Page 238 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑫ Scanner-Unit 7) Frame-RADF 1) Spring-PH(R) Apply a normal amount of MOLYKOTE (EM-30LP) to the hatched area (Shaft hole of Frame-RADF) Class B Guide-Separator(Hop) Tetra C-9300 Class S, To apply around the bending portion (○ part).
  • Page 239 4. REPLACEMENT OF PARTS Oki Data CONFIDENTIAL ⑬ OP-Panel Assy. 1) Gear-Idle-Z20(OP) ×2 2) Gear-Rack(OP) Gear-Idle-Z20(OP) ×2 HARVES MDF-1207 Apply HARVES all round. Gear-Rack(OP) HARVES MDF-1207 Apply HARVES all round. 4-89 45850101TH Rev.1...
  • Page 240 Oki Data CONFIDENTIAL REGULAR MAINTENANCE 5.1 Cleaning ..................5-2 5.2 Cleaning of LED lens array ............5-3 5.3 Cleaning the Feed rollers and the Retard roller ......5-5 5.4 Cleaning the MPT Feed rollers .............5-7 5.5 Cleaning Rollers in the ADF ............5-9 5.6 Cleaning the rollers inside of the ADF ........5-11...

  • Page 241: Cleaning

    5. REGULAR MAINTENANCE Oki Data CONFIDENTIAL 5.1 Cleaning Remove toner powder and dust in the MFP inner section. Clean the inside of and the periphery of the MFP with the cloth as needed. Clean the MFP inner section with the handy cleaner (maintenance tool).

  • Page 242: Regular Maintenance

    5. REGULAR MAINTENANCE Oki Data CONFIDENTIAL 5.2 Cleaning of LED lens array If the vertical white lines, and white belt (white spot, pale printing) occur in printing (2) Open the scanner unit. as shown below, the LED lens array should be cleaned or the toner cartridge should be replaced.
  • Page 243 5. REGULAR MAINTENANCE Oki Data CONFIDENTIAL (4) Press the button (a) and open the Output Tray (b). (5) Wipe the whole LED head softly with the soft tissues or cloth. Note! Do not use solvents including methyl alcohol, and thinner.

  • Page 244: Cleaning The Feed Rollers And The Retard Roller

    5. REGULAR MAINTENANCE Oki Data CONFIDENTIAL 5.3 Cleaning the Feed rollers and the Retard roller (1) Power off the MFP. (3) Wipe two paper feed rollers inside the printer with a soft cloth that has been slightly moistened with water and then squeezed well.
  • Page 245 5. REGULAR MAINTENANCE Oki Data CONFIDENTIAL (4) Wipe two paper feed rollers in the tray with a soft cloth that has been slightly moistened with water and then squeezed well. Note! Use water only. (5) Push the tray back into the MFP.

  • Page 246: Cleaning The Mpt Feed Rollers

    5. REGULAR MAINTENANCE Oki Data CONFIDENTIAL 5.4 Cleaning the MPT Feed rollers (1) Power off the MFP. (3) Close the MPT gently to a position where the left and right tabs fit the arm grooves. (2) Open the MPT. 45850101TH Rev.1...
  • Page 247 5. REGULAR MAINTENANCE Oki Data CONFIDENTIAL (4) Separate the tabs on the roller guide from the left and right arms by (6) Wipe the two feed rollers with a tightly wrung cloth soaked in water through pushing the tabs to inside.

  • Page 248: Cleaning Rollers In The Adf

    5. REGULAR MAINTENANCE Oki Data CONFIDENTIAL 5.5 Cleaning Rollers in the ADF If the document feeding rollers in the ADF are contaminated with ink, toner particles (3) Wipe the document feed roller, guide surface, and retard roller with a soft or paper dust, documents and outputs get dirty and a paper jam may occur.
  • Page 249 5. REGULAR MAINTENANCE Oki Data CONFIDENTIAL (5) Wipe the rollers with a soft cloth lightly moistened with water. (6) Close the inner cover and the ADF Cover by the inverse procedure with opening. 5-10 45850101TH Rev.1...

  • Page 250: Cleaning The Rollers Inside Of The Adf

    5. REGULAR MAINTENANCE Oki Data CONFIDENTIAL 5.6 Cleaning the rollers inside of the ADF This section is described of the cleanning method for the rollers arranged to inside (3) Wipe the rollers with a soft cloth lightly moistened with water.

  • Page 251: Cleaning The Document Glass

    5. REGULAR MAINTENANCE Oki Data CONFIDENTIAL 5.7 Cleaning the Document Glass It is recommended to clean the document glass once a month to maintain image (2) Wipe the ADF document holding pads, document glass, and ADF quality of the printouts.

  • Page 252: Connection Diagrams

    Oki Data CONFIDENTIAL CONNECTION DIAGRAMS 6.1 Connection diagram ..............6-2 6.2 Board Layout ................6-4 6.3 Resistance value ................6-15 6.4 Firmware Information ..............6-20...

  • Page 253: Connection Diagram

    6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL 6.1 Connection diagram (1) Printer section 2Bin Unit RFID 7 inch OPE Speaker Board-POL FFC22P Paper route setting Solenoid JST2P JST2P JST2P JST2P Core JST2P Extension cable Core Speaker JST8P FRONT USB MEM SETCOV...
  • Page 254 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL (2) Scanner section FB Unit ADF Unit ADF feed hopping motor motor To CU/PU board JST 6P JST 6P JST 14P JST 6P JST 6P ADF relay board Flatbed motor (Board-6RL) FFC50P Core Core...

  • Page 255: Board Layout

    6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL 6.2 Board Layout (1) CU/PU board (Board-6CU) Component side SOLDER SUPOW SCNOP SATAPOW SSNS SUIF SIDEFAN R492 R469 RM30 B2IF IC43 IC42 IC40 IC41 IC37 RM22 RM23 RM24 RM25 D12 D13 RM21 IC35 IC32...
  • Page 256 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL (2) Scanner board (Board-6SU) Component side FAXIF SPK1 CIS1 OSC2 IC12 OSC3 IC15 OPN_F IC19 ZA13 IC21 CP10 R372 CD2_CUIF POWER_IN 45850101TH Rev.1...
  • Page 257 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL (3) ADF relay board (Board-6RL) (5) Document double feed sensor board (Tx) (Board-6JC) Component side Component side Board-6RL SETCOV DFSTX Board-6JC FDCL RGCL DFSRX PSIZL PSIZW SUIF 45734599 (6) Document double feed sensor board (Rx) (Board-6JD)
  • Page 258 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL (7) Toner sensor board (Board-TSA) (8) Color registration sensor board (Board-PRC) Component side Component side (9) Panel board (Board-TP1) Component side TFT1 TEST1 IC14 TEST2 45657499 SUIF 45850101TH Rev.1...
  • Page 259 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL (10) Switch board (Board-THS) (11) Environment sensor board (Board-8TH) Component side Component side HOME SW540 45361799 SW534 POWER SW504 SW505 SW506 SW530 (12) Duplex unit board(Board-GOH) , 2nd(3rd/4th) unit board (Board-GOH-2) GREEN COPY D_LED505...
  • Page 260 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL (13) HOP sensor board (Board-HSC) (15) Relay board (Board-P6Z) Component side Component side 44607699 44634799 (14) WR sensor board (Board-RSG) Component side FUSERIN DENS POWFAN 44607799 (16) Antena board (Board-POL) Component side 43150399 1...
  • Page 261 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL (17) 2bin LED board (Board-1LD) Component side (18) 2bin relay board (Board-7RL) Component side SNSIF 44997899 6-10 45850101TH Rev.1...
  • Page 262 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL (19) FAX board (Board-FXS) Component side ZNR2 ZNR1 REF2 45671299 REF1 6-11 45850101TH Rev.1...
  • Page 263 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL (20) High-Voltage Power board (Board-EHV) Component side 45730399 JP140 JP139 JP135 JP138 CH-K CH-Y CH-C JP129 SB-K DB-K SB-Y SB-C DB-C JP128 CH-M DB-Y SB-M DB-M JP122 JP104 JP96 JP92 JP90 JP89 JP81 JP84...
  • Page 264 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL (21) Low-Voltage Power board (1H609WA) Component side Seriol No T601 Q221 Q222 250V T8AH CR101 RC101 C135 L111 C201 C137 C126 Q140 RC111 Q112 Q111 CR51 D423 RC301 RC302 CR52 TH301 6-13 45850101TH Rev.1...
  • Page 265 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL (22) Transfer Belt Unit Transfer belt unit (for consumable parts) Contact point Fuse Relay Board Contact point Transfer belt unit Fuse 6-14 45850101TH Rev.1...

  • Page 266: Resistance Value

    6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL 6.3 Resistance value Unit Electrical circuit diagram, connection Part outside view Resistance value Between pin-1 and pin-2 : 3.4 Ω Belt motor Between pin-3 and pin-4 : 3.4 Ω ID motor Across both ends of IP2 :1 Ω or less 6-15 45850101TH Rev.1...
  • Page 267 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL Unit Electrical circuit diagram, connection Part outside view Resistance value Across both ends of IP1 : 1 Ω or less Fuser motor Between pin-1 and pin-2 : 3.4 Ω Hopping motor Between pin-3 and pin-4 : 3.4 Ω...
  • Page 268 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL Unit Electrical circuit diagram, connection Part outside view Resistance value PHR-6 PHR-6 COLOR OF COLOR OF PIN No. PIN No. LEAD LEAD PHR-6 connector YELLOW Duplex print motor Between pin-1 and pin-3 : 3.2 Ω...
  • Page 269 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL Unit Electrical circuit diagram, connection Part outside view Resistance value Between pin-1 and pin-3 : 7.4 Ω Flatbed motor Between pin-2 and pin-4 : 7.4 Ω ADF feed motor Between pin-1 and pin-3 : 0.9 Ω...
  • Page 270 6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL Unit Electrical circuit diagram, connection Part outside view Resistance value Upper (Plate heater) Thermostat 1200W Lower (Halogen heater) Upper Lower 500W 13P-RWZV-K4GG-P4 CZHR-07V-S Planar Heater Thermistor (PM5-342) Between pins A-6 and A-7 : Approx. 80.58 kΩ to 53.38 kΩ 0 to 93°C)

  • Page 271: Firmware Information

    6. CONNECTION DIAGRAMS Oki Data CONFIDENTIAL 6.4 Firmware Information 6.4.1 Maintenance board indication stamp Stamp No. Board 6CU (YU) Series No. (Maintenance Board Use for Series No. In accordance with the following list, a specified part number is stamped on the maintenance Series No.)

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