Oki MB472w Maintenance Manual Download Page 214

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Oki Data CONFIDENTIAL

45762101TH Rev.1

6-15

6. CONNECTION DIAGRAMS

6.3 Resistance value

Unit

Circuit Diagram

Part Diagram

Resistance Value

DC Motor

IP2

IP3

Both ends of IP2 and IP3: 1

or less

Clutch

(Hopping)

(Regist)

(MP Tray)

Cable

Cable Color

Black (Hopping)

Blue (Regist)

Yellow (MP Tray)

Between Pin1 and Pin2 : 240

Fuser Assy

Thermostat

Heater

Thermistor

Heater

Thermistor

Between Pin1 and 2: Several to to
several tens of ohms
Between pin3 and 4 :360K
At the ambient temperature (25ºC)

Summary of Contents for MB472w

Page 1: ...MB472w Maintenance Manual 110614A ...

Page 2: ... other manufacturers and referred to in this guide will not affect the applicability of the information in it Mention of software products manufactured by other companies does not necessarily constitute endorsement by the manufacturer While all reasonable efforts have been made to make this document as accurate and helpful as possible we make no warranty of any kind expressed or implied as to the ...

Page 3: ...his manual The parts used for this printer may be damaged when handling inappropriately We strongly recommend maintaining this machine by our registration maintenance staff Please operate the machine after removing static electricity PREFACE PREFACE Risk of explosion if battery is replaced by an incorrect type Battery of the printer need not to be replaced Do not touch the battery Replace the whol...

Page 4: ... 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 5 1 LCD messages list 2 3 2 5 2 Service Call List 2 30 2 5 3 Fax Error List 2 33 2 5 4 Email Internet FAX FAX Server Error List 2 34 2 5 5 Preparing for troubleshooting 2 35 2 5 6 Print Troubleshooting 2 62 2 5 7 Response...

Page 5: ...y separator Spring separator Rubber friction 4 19 4 2 8 8 Cable ADF Rev SNS 4 19 4 2 8 9 Cable ADF Reg SNS 4 20 4 2 8 10 Frame assy OP 4 20 4 2 8 11 Frame OP panel OPE board 4 21 4 2 8 12 LCD assy 4 22 4 2 8 13 Frame assy FB 4 23 4 2 8 14 How to remove Battery SU Board MSU 4 25 4 2 8 15 Frame assy hopping ADF 4 26 4 2 9 Plate Stay L Plate Assy Stay R 4 27 4 2 10 LED Head 4 28 4 2 11 Frame Assy TR ...

Page 6: ...Cleaning Rollers in the ADF 5 8 5 6 Cleaning the Document Glass 5 9 6 CONNECTION DIAGRAMS 6 1 6 1 Connection diagram 6 2 6 2 Board Layout 6 4 6 3 Resistance value 6 15 6 4 Firmware Information 6 17 6 4 1 ROM control numbers 6 17 6 4 2 Instruction of FW update 6 17 6 4 3 Checking and indication of the revision number 6 18 6 4 4 Stamp of maintenance board indication 6 18 7 APPENDIX 7 1 7 1 List of I...

Page 7: ...Oki Data CONFIDENTIAL 1 CONFIGURATION 1 1 System configuration 1 2 1 2 Structure of MFP 1 3 1 3 Offer of Options 1 4 1 4 Specifications 1 5 1 5 Interface specifications 1 11 ...

Page 8: ...ard LED head Printer Section Scanner Section Toner cartridge Board Image drum unit Fuse Relay terminal High voltage power supply Unit HUM TEMP sensor Fuser FAN Transfer roller Stacker cover open SW Toner sensor board Power supply FAN is Option Drum FAN Low voltage power supply unit AC inlet Fuser unit Halogen lamp temperature sensor FUSE Thermostat USB 2 0 LAN 10BASE T 100BASE TX GigaBit Ether Ent...

Page 9: ... MFP The insides of multi function printers are composed of the following parts Scanner part Electronic photography process part Paper path Control part CU part PU part Power supply parts high voltage part low voltage part Figure 1 2 shows the composition of the MFP Figure 1 2 ...

Page 10: ...Oki Data CONFIDENTIAL 1 CONFIGURATION 45762101TH Rev 1 1 4 1 3 Offer of Options This product can be installed with the following option 1 Second Tray Unit ...

Page 11: ... UPC A UPC E EAN JAN 8 EAN JAN 13 Interleaved2of5 Code39 Code 128 EAN UCC 128 CODABAR ZIP 4POSTNET 2 types of two dimensions PDF417 Qrcode Item MB472dnw Paper input Paper size 1st Tray A4 A5 A6 B5 Letter Legal13 13 5 14 Executive Statement 16K 197 x 273 16K 195 x 270 16K 184 x 260 Custom 2nd Tray Option A4 A5 B5 Letter Legal13 13 5 14 Executive 16K 197 x 273 16K 195 x 270 16K 184 x 260 Custom MPT ...

Page 12: ...0 Operation panel Type Color Mono Graphic Size 3 5 inches Back Light Yes White LED Copy Scan Print Fax Blue Status Amber Start Green x 2 Power save Green Data in memory Item MB472dnw Operation panel Switches Copy Scan Print Fax Status Setting Help Reset Back OK Arrow Up Down Left Right Numerical 0 9 Clear Mono Start Color Start Stop Power Save Speed dial Job macro Shift One touch x8 QWERTY keyboar...

Page 13: ...tter Legal13 13 5 14 Executive Minimum size 4 13 x5 8 105x148mm Maximum size 8 5 x14 215 9x355 6mm Original weight Flatbed N A RADF 16 28lb 60 105g m2 Original capacity Flatbed N A RADF 50 sheets 80g m2 Copy Scaling Auto Manual 25 400 Preset 100 70 A4 A5 78 Legal14 Letter 81 Legal13 5 Letter 84 Legal13 Letter 86 A4 B5 94 A4 Letter 97 Letter A4 98 Fit to page 115 B5 A4 141 A5 A4 Copy Quantity Selec...

Page 14: ...esolution 75 100 150 200 300 400 600dpi File format PDF Secure PDF High compression PDF S TIFF M TIFF RAW G3 G4 Compressed JPEG color grayscale only XPS Document type selection Text Photo Text Photo Photo Glossy Duplex scan Yes OFF Long edge bind Short edge bind Continuous scan Job build Yes Image quality adjustment Density Background removal Contrast Hue Saturation RGB Edge erase Yes OFF 5 to 50m...

Page 15: ...n Yes FAX function TEl TAD FAX auto switching Yes Distinctive Ring Detection Yes Automatic Tray select for Fax print Yes Letter Legal13 13 5 14 Block junk FAX Yes PC FAX Yes sending only Automated delivery Yes Edge erase Yes FAX reception image preview No FAX to server FAX gateway Yes Common specifications Item MB472dw Emulation PCL SIDM XPS Network wired 10 100 Gigabit Network wireless 802 11a b ...

Page 16: ...Address List Yes No 15 Speed Dial List Yes No 16 Group List Yes No 17 Transmit Journal Receipt Journal Yes Yes 18 Transmit Confirmation Report No Yes 19 Check Message No Yes 20 F CODE Box Journal No Yes 21 Erased Report No Yes 22 F Code Box List Yes No 23 Block Junk Fax List Yes No 24 T30 Monitor Yes No 25 E mail Internet FAX FAX Server Transmit and Receipt Journal Yes Yes No Report Name Manual Au...

Page 17: ...1 2 USB Interface Connector and Cable 1 Connector Printer side B receptacle female Upstream port Equivalent of UBR24 4K5C00 made by ACON 2 Cable Cable length Specification Cable of USB2 0 spec of less than 5m less than 2m is recommended 1 5 1 3 USB Interface Signal Name of Single Function 1 Vbus Power Supply 5V red 2 D Data transmission white 3 D Data transmission green 4 GND Single ground black S...

Page 18: ...taneous use are not available 1 8 1 5 2 3 Network Interface Signal Pin No Signal name Functions 1 TRD 0 Transmit and receive Data 0 2 TRD 0 Transmit and receive Data 0 3 TRD 1 Transmit and receive Data 1 4 TRD 2 Transmit and receive Data 2 5 TRD 2 Transmit and receive Data 2 6 TRD 1 Transmit and receive Data 1 7 TRD 3 Transmit and receive Data 3 8 TRD 3 Transmit and receive Data 3 Connector pin ar...

Page 19: ...cified 2 Unspecified 3 TCP 4 TCP 5 Unspecified 6 Unspecified LINE 1 Unspecified 2 Unspecified 3 TCP 4 TCP 5 Unspecified 6 Unspecified TCP Terminal Connection Point 1 5 4 USB Host Interface 1 5 4 1 Outline of USB Host Interface 1 Basic Specification USB 2 Transmission Mode Hi Speed 480Mbps 0 05 max 3 Supply Power Max 500mA 4 Connection devices USB memory 1 5 4 2 USB Host Interface Connector USB A p...

Page 20: ...ONFIGURATION 1 5 5 Wireless LAN Interface 1 5 5 1 Outline of Wireless LAN 1 Specification IEEE 802 11b g n 2 4GHz 5GHz 2 Power supply voltage 5V 3 MFP side interfaces USB USB Port Note In using wireless LAN don t connect a LAN cable to this product ...

Page 21: ... 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 70 ...

Page 22: ...nt 2 Check to see if the consumables toner drum cartridges are replaced properly 3 Check to see if the right paper is used See the paper specifications 4 Check to see if the drum cartridges are installed properly 2 3 Precautions when taking action on abnormal images 1 Do not bring your hand or any object in contact with the surface of the OPC drum 2 Do not expose the OPC drum to direct sun 3 Do no...

Page 23: ...ion channel Compulsive initialization of EEPROM Reset by a FactoryDefaults operator of PS OEM set of PJL command 2 Initializing 1 2 3 4 5 Wait a moment Network initializing The network is in initializing If this status occurred during the unit initialinzing the message is displayed by English 3 Initializing 1 2 3 4 5 Flash Memory Format Displays that Flash memory is being formatted It is displayed...

Page 24: ...ace after Online ready state once this mode starts Displays Error or Warning on a panel This function is secret to users Therefore this status does not occur in a user environment 7 Shutdown 1 2 3 4 5 Shutdown in progress Please wait The machine turns off automatically It is shown that a unit is shutting down Normal No Category PJL Status Code Error Warning Description 1 Normal 40988 1 2 3 4 5 PU ...

Page 25: ...cuting maintenance While this status occurs panel is locked 13 Normal 10001 1 2 3 4 5 Online Mode Ready to print Shows Online status No Category PJL Status Code Error Warning Description 5 Normal 40828 1 2 3 4 5 Please check data Message Data Write Error CODE Indicates that writing of message data to be uploaded has been failed CODE is a decimal value one digit and represents the cause of failure ...

Page 26: ...yed as A B A The number of copy in printing B the total number of printing No Category PJL Status Code Error Warning Description 20 Normal 10017 1 2 3 4 5 Demo Page printing Printing Demo Pages Indicates that the stored Demo Print data is printing and the installed Demo Print data in Flash is printing 21 Normal 10015 1 2 3 4 5 Font List printing Printing Font Lists Indicates that printing sample d...

Page 27: ...1 2 3 4 5 Print page PAGES No of Copies A B Copy printing Print page means the current number of printing page PAGES No of Copies is displayed as A B A The number of pages in printing B The total number of printing The unit of Print page is Impression In simplex printing Print page counter is increased by 1 when the paper exited from fuser In duplex printing Print page counter is increased by 2 wh...

Page 28: ...cription 37 Normal 10863 ScanToUSBMemory Scanning P SCAN_PAGE DOC_SIZE PushScan Scanning SCAN_PAGE page AP_INFO PCScan Scanning Status AP Scanning Fax Sending Screen Scanning TXPAGE Page s DOC_SIZE Fax Manual Sending Screen Manual Fax sending Sending TXPAGE Page s DOC_SIZE LOCATION_INFO Location Information Scan To E mail Scan To Network PC only SCAN_PAGE the number of current scanning page DOC_SI...

Page 29: ... Please set next document This screen is displayed at the time of the scanning completed in Job Build ON 40 Normal 10861 1 2 3 4 5 Cancelling Indicates that the scanning for Scan To is cancelling by the pressing Stop key No Category PJL Status Code Error Warning Description 41 Normal 10859 1 2 3 4 5 Data writing to USB Memory Indicates that it is wrighting the image file to USB memory after the sc...

Page 30: ... 4 5 Fax sending Page TXPAGE TXFAXNUMBER F code PollingTX Fax sending Page TXPAGE Indicates that it is sending fax data TXPAGE number of the current receiving page TXFAXNUMBER recipient Fax no Not display on F code PollingTX In the case of manual fax sending Manual Fax sending Sending is displayed on LCD Scan page count and document size are displayed in the left bottom Page number Fax no are not ...

Page 31: ...ption 53 Normal 10875 1 2 3 4 5 Cancelling sending Indicates that E mail sending is cancelling This massage is displayed when an error is occurred during E mail sending When E mail is being sent user cannot cancel the sending by pressing STOP key The key operation is disableed during this message displayed 54 Normal 10869 1 2 3 4 5 Connecting to server Indicates that connecting to file server The ...

Page 32: ...ing Indicates that printing of the message report that fax receiving data is sroted in F code box by F code receiving 66 Normal 10809 1 2 3 4 5 Erased Report printing Indicates that printing of the message report that the stored fax data in memory was eraced No Category PJL Status Code Error Warning Description 67 Normal 10810 1 2 3 4 5 Fcode Box List printing Indicates that printing of the enable...

Page 33: ... Normal 10765 1 2 3 4 5 Check Message printing Indicates that printing of Internet fax communication error report No Category PJL Status Code Error Warning Description 81 Normal 10766 1 2 3 4 5 Transmit Receipt Journal printing Indicates that printing of Internet fax and E mail communication sending and receiving and FAX server sending result list 82 Normal 1 2 3 4 5 Cancelling This appears when s...

Page 34: ...tatus Code Error Warning Description 6 Warning 10076 K 1 2 3 4 5 Image Drum Unit Near Life Please see Help for details The life of the drum warning Displayed in a combination of other message in the first line The printer stops at the point when it reaches the drum life Shifts to error OFF LINE Moreover when set as Admin Setup Management System Setup Near Life LED Disable Alarm LED is switched off...

Page 35: ...ay1 No Category PJL Status Code Error Warning Description 14 Warning 32000 32026 1 2 3 4 5 Disk Use Failed FS_ERR Please see Help for details Close A disk error is occurred which is other than the file system fill or the disk write protected Operation that does not involve a disk is available This message is cleared by OK key pressed FS_ERR 0 GENERAL ERROR 1 VOLUME NOT AVAILABLE 3 FILE NOT FOUND 4...

Page 36: ...s 20 Warning 10071 K 1 2 3 4 5 Please check COLOR Toner Cartridge Please see Help for details Something is wrong with the toner sensor during printing COLOR K No Category PJL Status Code Error Warning Description 21 Warning 10756 1 2 3 4 5 Wait Timeout is disabled If your printer is connected to USB port it may become unable to print a job without via the USB port Indicates that Print Timeout is d...

Page 37: ...ase see Help for details It indicates the Job Accounting log buffer is near full 32 Warning 10815 1 2 3 4 5 Accounting Log Writing Error Please see Help for details Close The Job Accounting log is not registered correctly because of thr disc access error is occurred during accounting log writing Related to Logging This message is displayed until OK key pressed No Category PJL Status Code Error War...

Page 38: ... format of email that has received is illegal or not supported The attached file is illegal or not supported The attached file that has received is too large for example file size exceeds 8MB Network connection has disconnected 39 Warning 1 2 3 4 5 Please Call Service Fax Combination Error Please see Help for details Indicates that machine has combination problems between existence of the fax mode...

Page 39: ...Empty ERRCODE Please see Help for details Toner ends Error 413 K Warning status takes effect at Cover Open Close No Category PJL Status Code Error Warning Description 6 Error 40947 K 1 2 3 4 5 COLOR Non Recommended Toner ERRCODE Please see Help for details It is a toner besides our specification Please exchange to the toner cartridge of an original manufacturer s product Error 557 K 7 Error 40910 ...

Page 40: ...the scanner unit and the top cover Please see Help for details Jam has occurred in paper path Error 389 Printing Page lost No Category PJL Status Code Error Warning Description 17 Error 40054 1 2 3 4 5 Paper Jam 372 Please open the scanner unit and the top cover Please see Help for details Jam has occurred nearby DUPLEX unit Error 372 Misfeed from Duplex 18 Error 40996 K 1 2 3 4 5 Please install n...

Page 41: ...r cover 28 Error 40788 1 2 3 4 5 ADF Cover Open Please see Help for details Indicates that ADF cover of scanner unit is opened Indicates that inter lock cover of scanner unit is lifted up Notes If inter lock cover is lifted up during scanning from document feeder system will display document jam No Category PJL Status Code Error Warning Description 29 Error 40789 1 2 3 4 5 Document Jam Please open...

Page 42: ...reens to return to after errors have been reset vary from function to function It is desirable to return to the same screen No Category PJL Status Code Error Warning Description 39 Error 30938 1 2 3 4 5 Decode error occurred Please check image data Close Indicates that an error has occurred during analysis of image data input to the MFP from an external source This appears when an error has occurr...

Page 43: ...see Help for details Close Indicates that failed to login in POP3 server No Category PJL Status Code Error Warning Description 49 Error 40812 1 2 3 4 5 Getting target IP failed Please check DHCP settings Please see Help for details Indicates that DHCP server is not found out Scan to E mail Scan to Network PC and Scan to Remote PC WSD are unusable during this status occurring This message is displa...

Page 44: ... 461 Tray2 Error 462 59 Error 480yy 1 2 3 4 5 Tray Media Mismatch ERRCODE Please install paper MEDIA_SIZE MEDIA_TYPE on TRAY The media type in the tray and the print data do not match Load paper that was set in MEDIA_SIZE and MEDIA_TYPE in tray TRAY MP Tray Error 460 No Category PJL Status Code Error Warning Description 60 Error 482yy 483yy 485yy 1 2 3 4 5 Tray Media Mismatch ERRCODE Please instal...

Page 45: ...dicates that the data transfer type of FTP server is not supported by this unit The file sending will be success by the changing of data transfer type in FTP serve No Category PJL Status Code Error Warning Description 68 Error 40592 1 2 3 4 5 Not authorized to write file Please see Help for details Close Indicates that failed to make image file in file server during Scan To Network PC executing 69...

Page 46: ...AN board 78 Error 1 2 3 4 5 Wireless settings are incomplete Please see Help for details Wireless settings are incomplete Try making the manual settings or automatic settings once again If the problem is not resolved initialize the network settings and then try making the manual settings or automatic settings once again 79 Error 1 2 3 4 5 Not connected to wireless access point Please see Help for ...

Page 47: ...ication error occurred between CU and PU PU firmware may not be downloaded No Category PJL Status Code Error Warning Description 4 Error 1 2 3 4 5 Inspection is required PU Communication Error Displays that communication to PU firmware failed This status may occur also in a user environment When it occurs the maintenance by a maintenance member is required equivalent to S C If this status occurred...

Page 48: ...only 11 Error 40787 1 2 3 4 5 Power OFF ON Carriage Error CODE Indicates that it is carriage error CODE details 2 Home position error carriage connection error 3 Defective detecting black edge No Category PJL Status Code Error Warning Description 12 Error 40057 1 2 3 4 5 Power OFF ON ERRCODE Error FATALSTRING1 A fatal error occurred For more information see Service Calls List ERRCODE specifies 3 d...

Page 49: ...Error 30936 1 2 3 4 5 Unauthorized Scan Error Code X01 Close Notifies that a particular pattern is detected banknote detection during scanning for photocopy The message shall be written in English even when the MFP is bound for Japan The exact words shall be displayed and they shall not be shortened The message shall not be translated into any other languages 17 Error 1 2 3 4 5 This wireless firmw...

Page 50: ... the CU PU board properly Replace the CU PU board Display Cause Error details Measure Power OFF ON 073 Error Video error An error was detected in expanding image data an invalid data was received Is the CU PU board installed properly Does the error occur again No Yes Yes Reinstall it properly Change the PC to a high specification one or decrease the resolution and perform printing again Replace th...

Page 51: ...nect properly Replace the fan s motor Replace the PU board Inspection is required 128 Error 05 Image drum fan error Is the connector of the fan connected properly Does the error occur again No Yes No Re connect it properly Replace the fan motor Replace the CU PU board Display Cause Error details Measure Inspection is required 134 Error LED head detection error 134 K Is the LED head installed prope...

Page 52: ...from the CU PU board to the toner sensor board 01 A short circuit error 02 TAG communication error Inspection is required 250 Error Secure File Erasing Error Display Cause Error details Measure Inspection is required 251 Error Secure Disk Erasing Error PRESS POWER SW FOR 5SEC Error 813 SU Com munication Error Communication error between the Controller and the Scanner Unit is detected Turn off and ...

Page 53: ...a control signal at the time of receiving Including SEP discrepancy in bulletin board polling receiving 25 46 Phase B Response Rec Error Failed to receive a control signal at the time of sending Including SUB discrepancy in confidential sending 26 47 Phase B Invalid Command Response Rx Received an invalid signal 27 48 A machine on the other end was incapable of receiving 28 49 T1 timeout after EOM...

Page 54: ...on and status and the server status 9 POP Transmission Error Check network configuration cable connection and status and the server status 11 SMTP Transmission Error Sending Data is biggest Please Check for Mailbox quota at SMTP Server 12 SMTP Transmission Error Please wait and retry 13 SMTP Transmission Panic Contact the network administrator 15 Email receiving has been cancelled Canceled from SM...

Page 55: ... error Error code 400 2 56 8 1 Jam occurs when paper end is located near the entrance sensor 2 56 9 Fuser unit error Error code 170 to 177 2 56 9 1 Error occurs immediately after the power is turned on 2 56 9 2 Error occurs approx 1 minute after the power is turned on 2 56 10 Motor fan error Error code 122 127 128 2 57 10 1 The low voltage power supply fan does not rotate immediately after the pow...

Page 56: ... the cable with a good cable Check item Checking Action in case of fail 1 1 2 Checking connections Connection between SU board MSU and CU PU board Make sure the 16 pin FFC is connected to the OPE1 connector on the SU board MSU properly Make sure the 16 pin FFC is connected to the OPE connector on the CU PU board MRM properly Check whether the cable connector is half connected or tilted Connect the...

Page 57: ...y 5V and 24V power supplied to SU board MSU Check the power supply using the POWER connector on the SU board MSU 3 4pin 5V 7 8pin 24V 5 6pin 0VL 9 10pin 0VP Replace the low voltage power supply 3 3V power supplied to SU board MSU Check the power supply using the GDIIF connector on the SU board MSU 3pin 3 3V 4 6 9pin 0V Replace the CU PU board MRM 1 2 Display of OKI logo Check item Checking Action ...

Page 58: ... Checking Action in case of fail 2 1 3 Checking connections Connection between low voltage power supply unit and CU PU board MRM Make sure the low voltage power supply unit is connected to the POWER connector on the CU PU board MRM properly Check whether the cable connector is half connected or tilted or whether wires are broken Check whether there is any fault in the cable assembly e g missing wi...

Page 59: ...tor operates properly using the self diagnosis mode Check by detection of a load Noise that sounds like pooh is made when there is a fault Replace the consumable s When testing with a new consumable part use the fuse keep mode on the system maintenance menu 2 2 3 Check for gear jumping load by consumables Operation of each motor Check whether each motor operates properly using the self diagnosis m...

Page 60: ...ower supply unit Take out the low voltage power supply unit and confirm the odor Exchange low voltage power supply unit 2 4 Slow starting time Confirmation Items Confirmation Tasks Action at NG 2 4 1 Check a fuser unit Halogen lamp Confirm the wattage of the halogen lamp mounted in the fuser Exchange for wattage parts of the rated voltage 2 4 2 Check optional parts Expansion memory Reset the optio...

Page 61: ...essage appears on the display screen and the STATUS key on the operator panel blinks The error code and description differ according to where the paper jam occurs Clearing Paper Jams Caution Possible to get burned Since the fuser unit right is extremely hot perform the operation with care Note The image drum the green tube is very delicate Handle it carefully Do not expose the image drum to direct...

Page 62: ...nner unit 3 Press the top cover open button and open the top cover 5 Then remove the Duplex unit by raising the coloured handles on each side and then by holding the handles and gently lifting it out 6 Remove any paper and replace the duplex unit 4 Carefully lift out the image drum complete with the toner cartridge Be careful not to touch or scratch the green drum surface ...

Page 63: ...h handles of the transcription unit into both mounting holes of the printer 9 Secure the transcription unit to the printer by rotating both handles of the transcription unit in the arrow direction of Note Do not touch the sponge roller of the transcription unit by your hand 10 Re install the image drum complete with toner cartridge ensuring that the pegs 1 2 correctly locate into the slots on each...

Page 64: ...per is visible at the rear side of transparent resist guide rotate the resist guide toward the fuser unit and hold the paper top end and carefully pull out the paper 4 Carefully lift out the image drum complete with the toner cartridge Be careful not to touch or scratch the green drum surface If neither the top or bottom end of paper is visible move the jammed paper in the arrow direction as shown...

Page 65: ...arge unit hold the top end of paper and pull out the paper carefully If you cannot remove the paper by following Steps A 1 and A 2 pull out the paper by following Steps B Paper discharge unit Paper jammed If the bottom end of paper is visible in the printer hold and pull out the paper carefully Note If paper jams at the paper discharge unit and if the paper is visible inside of the top cover pull ...

Page 66: ...h the green drum surface 5 If the top end of paper is visible at the rear side of transparent resist guide rotate the resist guide toward the fuser unit and hold the paper top end and carefully pull out the paper If you have failed to remove jammed paper do not force to pull out the paper but follow the steps below Return the image drum cartridge into the printer and close the top cover Turn the p...

Page 67: ...s shown Hold the top end of paper by your hands 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 6 Re install the image drum complete with toner cartridge ensuring that the pegs 1 2 correctly locate into the slots on each side of the printer 3 7 Close the top cover 8 Close the scanner unit ...

Page 68: ...and Error Code 392 indicates a paper jam in Tray2 Memo The following procedure uses tray 1 as an example 1 Pull out and remove the paper cassette of the indicated tray 2 Remove jammed paper 3 Return the tray into the machine 4 Open the scanner unit 5 Press the top cover open button and open the top cover 6 Close the top cover 7 Close the scanner unit ...

Page 69: ... 1 Open the ADF cover and pull out the document upward When you can see the document Inside the ADF 1 Remove any documents from the document tray if any 2 Open the ADF cover 3 Hold jammed document by the top edge and gently pull it out If the edge of the document can been seen under the paper guide lift the paper guide and then pull out the document ...

Page 70: ...DENTIAL 45762101TH Rev 1 2 50 2 TROUBLESHOOTING PROCEDURES If the edge of the document cannot be seen in the ADF lift the document tray and then pull out the document Pull down the document tray 4 Close the ADF cover ...

Page 71: ...ammed in the paper running path Remove the paper 3 2 2 Check condition of the mechanical parts Entrance sensor Is the paper sent to the entrance sensor lever Replace the paper feed roller pick up roller or paper cassette Does the entrance sensor lever work normally It moves freely by touching Replace the entrance sensor lever Is the IN_WR connector of the main board connected properly Connect the ...

Page 72: ...r feed is started Check item Check operation Actions for NG results 4 2 1 Check condition of paper running path Paper running path of the front unit Open the front cover check if paper is not jammed in the paper running path Remove the paper 4 2 2 Check condition of the mechanical parts Write sensor Does the paper reach the write sensor lever YES Go next question NO Go Check paper feed roller Does...

Page 73: ...Installed Set the image drum cartridge appropriately 2 5 5 5 Paper feed jam Error code 390 Multipurpose tray 5 1 Does a jam error occur when turning on the power Check item Check operation Actions for NG results 5 1 1 Check condition of paper running path Paper running path of the multipurpose tray Open the front cover check if paper is not jammed in the paper running path Remove the paper Sheet R...

Page 74: ...or Is the paper sent to the entrance sensor lever Replace the paper feed roller pick up roller or paper cassette Does the entrance sensor lever work normally It moves freely by touching Replace the entrance sensor lever Is the IN_WR connector of the main board connected properly Connect the IN_WR connector properly Check item Check operation Actions for NG results 5 2 3 Check the paper feed roller...

Page 75: ...d in the paper running path Remove the paper 6 2 2 Check condition of the mechanical parts Paper ejection roller Is the paper ejection roller appropriately installed Install the paper ejection roller appropriately Paper ejection spring Is the paper ejection spring appropriately installed Install the paper ejection spring appropriately Cover Assy Rear or fuser unit Assy Replace Cover Assy Rear Repl...

Page 76: ...r unit Replace the fuser unit Note Service calls 171 error and 171 error can occur when the printer temperature is below 0 Turn on the power again after the printer temperature has increased 9 2 Error occurs approx 1 minute after the power is turned on Check item Check operation Actions for NG results 9 2 1 Temperature increase of fuser unit Thermostat halogen lamp Heater of the fuser unit is cont...

Page 77: ...condition of the connectors Correct the cable wiring route Replace the fan 10 2 All fans of the printer do not rotate Check item Check operation Actions for NG results 10 2 1 24V power supply CU PU board fuses F1 and F2 Check if the fuses F1 and F2 are not open circuit or not 24V power supplied to the CU PU board 24V power supplied to the CU PU board Check the power supply voltages at the POWER co...

Page 78: ...uare connector damaged Replace the connector 12 1 3 Check the control signals Control signal that is output from the CU PU board to the option tray board GOG PCB Check the control signals that are output from the 2ND connector of the CU PU board Pin 6 TXD PU 2nd Pin 5 RXD 2nd PU Replace the CU PU board 2 5 5 13 LED head cannot be recognized Error code 134 13 1 Service call 134 LED HEAD Missing Che...

Page 79: ...aper 3 mm away from the sensor window The white paper should be placed in the manner of opposing the toner sensor 4 When light is reflected by a white paper so that incident light falls on the toner sensor the Operator Panel display shows L When the paper is moved so that any light is not reflected by the paper so that the incident light does not reach the toner sensor H is displayed on the Operat...

Page 80: ...r not by using the Motor Clutch Test of the self diagnostic mode Check if any extra load exists or not Replace the CU PU board or the ID motor 2 5 5 15 Fuse cut error Error code 153 to 155 15 1 Fuse cut error Check item Check operation Actions for NG results 15 1 1 Check the system connection FFC connecting the CU PU board and the high voltage board 97T PCB Check if the HVIF connector of the CU PU...

Page 81: ...nspection Replace the FFC with the normal FFC 16 1 2 Environment condition Sharp change of environment condition Is the environment condition changed sharply from a low temperature environment to a high environment condition within a short time Example is such a case that a printer is moved from storage condition of a cold area in winter to an office environment Leave a printer for around one hour...

Page 82: ... Is the lens of the LED head dirty Yes Clean the lens No Is the LED head appropriately installed Check that the HEAD connector of the main board and the PC connector of the LED head are appropriately connected No Install the LED head appropriately Yes Does the contact plate of the transfer roller contact the TR terminal of the high voltage power supply unit properly See Figure 2 3 Section 6 2 9 No...

Page 83: ... trouble been solved Yes Completed No Replace the image drum cartridge Has the trouble been solved Yes Completed No Replace the main board or high voltage power supply unit White paper is outputted Is the LED head appropriately connected Check the HEAD connector of the main board and the PC connector of the LED head No Connect the LED head appropriately or replace the head cable Yes Is the image d...

Page 84: ...ntact plate so that it contacts the TR terminal of the high voltage power supply unit properly Yes Replace the transfer roller Has the trouble been solved Yes Completed No Is the backup roller surface normal No Replace the fuser Assy Yes Is the LED head appropriately installed Check the HEAD connector of the main board and the PC connector of the LED head No Install the LED head appropriately Yes ...

Page 85: ...C A Fuse E D C A Charging roller Earth Drum Developing roller Toner supply roller Fuse Charging roller Earth Drum Developing roller Toner supply roller Figure 2 3 Frame Assy TR Transfer roller Contact plate for transfer Contact plate for transfer High voltage power supply board TR terminal ...

Page 86: ...Oki Data CONFIDENTIAL 45762101TH Rev 1 2 66 2 TROUBLESHOOTING PROCEDURES Figure 2 4 Fuser Assy Contact plate ...

Page 87: ...write above Firmware and data into Flash by the Maintenance Utility Note Do not carry it out usually 2 5 8 Copy Image Abnormality Error Troubleshooting When the following symptom occurs in the copy image implement the inspection and adjustment of the copy image Line appears on the copy image The copy image becomes slightly thin The copy image becomes dark The copy image becomes abnormal 1 Identify...

Page 88: ...ddress Subnet mask Gateway address Print out the network information Check IP address Subnet mask Gateway address Set the IP address Subnet mask Gateway address correctly 3 Check whether the communication on the network is normal Send the Ping command from PC to printer to check Send the Ping command from PC to printer and check whether the response is correct Set the IP address Subnet mask Gatewa...

Page 89: ...rk Confirmation Items Confirmation Tasks Action at NG 1 Check Network Connection setting Check Network Connection is Wireless not Wired Print out the network information Check Network Connection setting is Wireless Set Wireless setting by Manual Setup or Auto Setup WPS to connect to wireless access point Network Connection setting switches from Wired to Wireless 2 Check the connection to the wirel...

Page 90: ...ork OPE F12 HEAD missing Fatal error 134 LED HEAD F501 White papers are printed LED HEAD F502 Scanner unit does not work Scanner unit Fuse Name Error Description Insert Point Resistance SU board MSU F1 Service Call Lamp Error Please call service 03 CIS 1Ω or less F2 Freeze up while initializing RSET IC I2C EXPANDER FAX RTC F3 Document jam occurs while copying FAX SOLENOID CLUTCH F4 Service Call Po...

Page 91: ...nel The printer has maintenance menus in addition to general menus The menus intended for adjustment purposes should be selected 3 1 Maintenance Menu 3 2 3 2 Service Bit Menu 3 9 3 3 Maintenance Utility 3 10 3 4 Self diagnostic mode 3 11 3 5 Switch pressing function when power supply is turned on 3 26 3 6 Settings after Parts Replacement 3 27 ...

Page 92: ...ystem Maintenance When OKIUSER is other than JPOEM1 OEMA or OEML Manufacturer is OKI DATA CORP Format Flash Memory Execute Formats flash ROM memory When this command is executed the menu is exited and formatting of the resident onboard flash device begins Use of this command is strictly prohibited contact design before use Reset Admin Password Execute Returns the administrator password to the fact...

Page 93: ... characters numerals and lower case alphabetic characters may be entered Check RTC Displays a snapshot of the current time The time does not change during display Save Syslog Execute Saves the network communication log syslog to nonvolatile memory Print Syslog Execute Prints the network communication log syslog Power Save Power Save Enable ON OFF ON ON Setting Valid Invalid of Save power mode Slee...

Page 94: ...t add a negative value Increase or decrease the number of motor pulses from detection by the sensor of the front edge of the media until actual reading starts Adjust in intervals of one step 4 600 dpi 0 17 mm Back Edge 30 40 mm 0 0 0 When reading a document from the ADF add a value for the basic value when skipping the back edge of the document To read the shadow of the back edge of the document a...

Page 95: ...e R continuous G continuous B continuous All continuous Only for engineering test Sequentially light the designated RGB colors and check them during calibration configuration duties Move the CIS to the standard position In the position moved to sequentially light R followed by G and B in the same manner Light each color for approximately 3 seconds Display Testing during execution On the panel disp...

Page 96: ...h R32 20h R33 21h R34 22h R35 23h R36 24h R37 25h R38 26h R39 27h R40 28h R41 29h R42 2Ah R43 2Bh Only for engineering test Change AFE IC register settings 3 9 settings Then read the document using PC Scan W Display message showing that settings are complete R Display read value Mechanical Test ADF Test Simplex Duplex Simplex Duplex Conduct mechanical testing without reading an image ADF Test movi...

Page 97: ... Set document detection sensor MEDIA Scanning sensor SCAN Reverse sensor REVERSE ADF cover open senor ADF CVR FB home position sensor FB HP ADF Motor Test Forward Forward Continuous Reverse Reverse Continuous Test the ADF motor After a short press of the button rotate in the CW direction for 10 seconds and then stop After a long press of the button rotate in the CW direction continuously Stop when...

Page 98: ...4 33 6Kbps V 34 28 8Kbps V 17 14 4Kbps V 17 12 0Kbps V 17 9 6Kbps V 17 7 2Kbps V 29 9 6Kbps V 29 7 2Kbps V 27 4 8Kbps V 27 2 4Kbps V 21 0 3Kbps Modem signal send test conducted 11 types available including V 34 33 6 Kbps T 30 Monitor Execute The unit keeps the last transmission log Tx Rx commands on volatile memory and print when select Execute If turn off the unit the records will be lost Print M...

Page 99: ... Enable Interval of CED and DIS is 1000ms When an Item is Disable Interval of CED and DIS is 075ms Disable Disable 3 Attenuator 0 15 dB Enter Attenuator Depends on Country Code 4 MF Attenuator 0 15 dB Enter MF Tone Attenuator Depends on Country Code 5 Pulse Make Ratio 33 39 40 Sets the make rate of DP 10 pps during call It only shows when ServiceBit ON and Tone Pulse setting PULSE Depends on Count...

Page 100: ... to an interface error 3 2 1 Unavailable Option Adjustment Section in Maintenance Utility Operating Manual Operation from operator panel section in this maintenance manual 3 Factory Shipping mode Switches between the Factory and Shipping modes Purpose To configure a maintenance replacement CU PU board onto which the CU PU board information cannot be copied with the board replacement function e g d...

Page 101: ...d as shown in a shaded area XXXXX the level of the self diagnostic mode can be switched 2 or 8 is used to switch to the option in a non shaded area XXXXX LEVEL0 engine status display Engine status display Respective voltages display during print Toner sensor monitor Toner pulse count monitor Toner TAG noise test monitor Motor controls evaluation function Error detail LEVEL1 ENGINE DIAG MODE XX XX ...

Page 102: ...e Front and back Transfer TR voltage 3 Toner sensor monitor K toner sensor status monitor display Toner pulse count monitor Toner pulse count status monitor display Toner TAG noise test monitor Tag serial No Last four digits Noise detection count display Error detection count display Motor controls evaluation function Main motor constant speed timer value Environment temperature Fuser motor consta...

Page 103: ...G T2 HOP CLUTCH MPT PE T2 REG CLUTCH T1 PE_PNE_CVO LV FAN TEST T2 PE_PNE_CVO_CA FUSER FAN TEST T2 HOP_LF_FED ID FAN TEST Note If is pressed when selecting a motor the motor keeps running 2 2 2 2 B FACTORY MODE SET SENSOR SETTING LED HEAD DATA NVRAM PARAMETER A FACTORY MODE 8 TONER SENSOR 8 K 8 CLEAR 8 FUSE INTACT ID UNIT CHECK Note To confirm the parameter press 6 DRUM OVER LIFE WR POINT REV BOTTO...

Page 104: ... the Factory mode and the Shipping mode 7 FUSE status check Respective FUSEs status display 8 Engine parameter setting SENSOR SETTING Valid Invalid setups of error detection by various sensors 9 LED Head serial number display LED HEAD DATA LED Head serial number display 10 NVRAM parameter setting NVRAM PARAMETER Do not use this item 3 4 2 1 Entering self diagnostic mode level 1 1 Make sure that th...

Page 105: ...ctivate the respective units Figure 3 1 Status of the respective units are displayed on the corresponding areas of the LCD display Display changes depending on each sensor Refer to Table 3 3 for details 4 Press the key to return to the status of step 2 5 Repeat steps 2 to 4 as required 6 Press the 4 key to exit the test Returns to the status of step 1 Paper level indicator lever Driven roller Driv...

Page 106: ...r H Open L Close Cover Face Up H Open L Close 4 HT THERMISTER Upper Side Thermister AD value H 5 HUM_TEMP_DEN Hum Sns AD value H Temperture Sns AD value H 6 DRUM_T Drum Temperture Sns AD value H 7 TONER TAG TAG K presence or absence UID H 8 MPT PE MPT Paper End Sns Port level H L 9 T1 PE_PNE_CVO 1st Paper End Sns Port level H L Cassette Sns 1st Port level H L 10 T2 PE_PNE_CVO_CA 2nd Paper End Sns ...

Page 107: ... is re activated when the corresponding switch is pressed The clutch solenoid repeats turning on and off during the normal print drive If a clutch solenoid cannot be activated independently the motor is driven at the same time If key is pressed when selecting a motor the motor keeps running 4 When the key is pressed the corresponding unit stops activating Display of the corresponding unit keeps di...

Page 108: ...Up Cover open REGIST CLUTCH MAIN MOTOR driving T1 HOP CLUTCH MAIN MOTOR driving MPT HOP CLUTCH MAIN MOTOR driving T2 HOP CLUTCH TRAY2 MOTOR driving OPTION T2 REG CLUTCH TRAY2 MOTOR driving OPTION LV FAN TEST FUSER FAN TEST ID FAN TEST Note The rollers that rotate continuously each of heat rollers image drums and conveying rollers run in synchronization with the main motor Table 3 4 ...

Page 109: ... the upper row of display area and the setting value is displayed in the lower row of display area Pressing the 2 key increments the setting value Pressing the 8 key decrements the setting value The setting value that is displayed at last is applied Pressing the 4 key determines the entry value and returns to step 2 Repeat step 3 as required TEST PATTERN 1 Display Setting value Function PRINT EXEC...

Page 110: ...nt Panel display Details PAPER END SELECTED TRAY No paper SELECTED TRAY IS NOT INSTALLED Selected tray is not installed INSTALL CASSETTE TRAY OPEN Cassette removal Print pattern It cannot be used for checking PQ 0 Write paper print 1 2x2 print 2 4x4 print 3 Horizontal line print 4 Slash line print 5 Vertical line print 6 White paper print 7 Black paper print 8 to 15 White paper print During printi...

Page 111: ...Displays are switched by pressing the 2 key DB k DB Develop voltage setting table ID number unit HEX Displays are switched by pressing the 2 key TR1 k TR2 k 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 TROFF TROFF Transfer OFF voltage setting table ID number unit HEX 5 Repeat st...

Page 112: ...nt of toner consumption K STC MODE CNT 8192 DEC DOT It shows the number of print dot counts of the toner It is a cumulative value counted after the first use of the printer K OVER RIDE CNT TIMES DEC Times It shows the number of overrides of life warnings for the toner cartridge 3 4 2 7 Number of print copies counter display This self diagnostic menu is used to display status of the number of copie...

Page 113: ...ction valid FUSE INTACT Note indicates INTACT or BLOWN ID UNIT Checks the fuse status of the K ID unit 3 4 2 9 Self diagnostic function setting This self diagnostic menu is used to set valid invalid of the error detection by the various sensors The error detection can be made invalid or valid for locating source of abnormality However this menu item requires expert knowledge to set among the engin...

Page 114: ...t value Amount of cut at the rear end of a paper is set Hatched portion Default is shown 3 4 2 10LED head serial number display This self diagnostic menu item is used to check whether the downloaded LED head data matches the serial number of the actual LED head 1 Enter the self diagnostic mode level 1 press the 2 or 8 key repeatedly and press the 6 key when the LED HEAD DATA is displayed in the up...

Page 115: ...ad method In the case of replacing the Print Board of Controller copy the old EEPROM content to the new EEPROM of new board and then save the customer setting To operate this use Maintenance Utility About the operating method of Maintenance Utility refer to Maintenance Utility Operating Specification Maintenance Utility is designed for working place engineer use only It is not released to the end ...

Page 116: ...e as follows And the switches below are effective when pressed before LED is lighted in the special start confirming pattern 1 1 key and key Despite of warning error always start by online mode factory support function 2 key and STOP key Initialize NIC settings to Factory defaults When executing this initialize all network settings will be returned to Factory defaults It s not use in normal condit...

Page 117: ...nce Utility Operating Manual about Serial number setting and make a change to the Shipping mode Refer to Maintenance Utility Operating Manual about Factory Shipping mode setting in setting windows when the information cannot be removed Configure CU block serial number information Refer to Maintenance Utility Operating Manual about Serial number setting when the setting information cannot be remove...

Page 118: ...rinting Status Page After the configuration in the UK factory when facing OEL the PU serial number is taken as Lot Number and shown in the Lot Number column of the last line which is in the header of the Status Page 1 2 Set the CU serial number SAP serial number can be applied to the device The SAP serial number is displayed in the highest rung of the serial number label It is a 12 digit number in...

Page 119: ... a new one Switch the printer to the Shipping mode Set on the menu of Factory Shipping mode setting Note Note that replacing the EEPROM the engine control board clears life information about units including the toner and image drums causing errors in managing the lives of the units until the units are replaced Below is the counts cleared with such Board Replacement When the units are replaced with...

Page 120: ...ard MSU Scanner Unit try to get the scanner setting parameters from the board by using the Board Replacement function of Maintenance Utility if it is still able to be accessed by Maintenance Utility After replacing the SU board MSU Scanner Unit to new one restore the scanner setting parameters to new one by using Maintenance Utility For further information refer the instruction of the manual of Ma...

Page 121: ...s are to detach them Reverse the procedures to attach them The reference part numbers used in this manual such as and do not identical to the part numbers in the maintenance disassembly configuration diagram 45762101TL and RSPL 45762101TR for the manual 4 1 Notes on replacement of parts 4 2 4 2 Part replacement procedure 4 4 4 3 Lubrication point 4 52 ...

Page 122: ...ld be tentatively installed in their original positions 7 Do not use static prone gloves when handling integrated circuits ICs including microprocessors and ROM and RAM chips or circuit boards 8 Do not place printed circuit boards PCBs directly on the printer or a floor Unplugging Plugging b Always use the following procedure to reconnect the printer Connect the AC cord and the interface cable to ...

Page 123: ...0 1 3 Screwdriver No 5 200 1 4 Digital multimeter 1 5 Pliers 1 6 Handy vacuum cleaner toner vacuum 1 See note 7 E ring pliers 1 E shaped ring removal Note Use a toner vacuum Using a general purpose vacuum may cause fire Table 4 1 2 shows the tools necessary to use Maintenance Utility software Table 4 1 2 Maintenance Tools No Maintenance Tool Quantity Use Remarks 1 Notebook personal computer with M...

Page 124: ...blies shown in the disassembly diagrams below 4 2 1 Cover Side L 1 Remove the cassette assembly 2 Open the Scanner Cover Assy Stacker Frame Assy MPT and Cover Assy Rear 3 Unlatch the claws 10 portions with to pull the front side of the mainbody to the arrow in figure to detach the Cover Side L Cover Assy Stacker Caver Assy Rear Frame Assy MPT Scanner Points of craws ...

Page 125: ...Scanner the Cover Assy Stacker the Frame Assy MPT and the Cover Assy Rear 3 Remove the Screw Black and the Screw Silver 4 Unlatch the claws 7points with to pull the front side of the mainbody to the arrow in figure to detach the Cover Side R View A Caver Assy Stacker Caver Assy Rear Frame Assy MPT Scanner ViewA Points of craws ...

Page 126: ...cables and remove four Screws Silver to detach the Board MRM View A View A View B View B Note If replaced new board update Firmware according to Chapter 9 3 It is necessary to take the synchronization of the firmware version of SU board and CU board For MB451 MB451w If Error 049 is displayed on LCD after replacing to the new Board MRM it is necessary to update the firmware according to Chapter 6 3...

Page 127: ... to touch the conductors or terminals of the power supply directly After the AC cord is unplugged the capacitor may take about one minute to discharge completely or due to PCB breakdown could not discharge Use caution about electric shock 1 Remove the Cover Side R Refer to 4 2 2 2 Disconnect cables from the PWR unit ACDC Switch 3 Remove two Screws Silver 4 Unlatch the claws 3 points to detach the ...

Page 128: ...ng installing 1 Assemble the POWER to main body in accordance to the groove on guide guide 4 2 5 Cover Stay R Cover Stay L 1 Remove the Cover Side L Refer to 4 2 1 2 Remove the Cover Stay L 3 Remove the Cover Side R Refer to 4 2 2 4 Remove the Screw Black to detach the Cover Stay R ...

Page 129: ...emove the Cover Side R and Cover Side L Refer to 4 2 1 and 4 2 2 2 Remove two Screws Black to detach the Cover Front Top 4 2 7 SW Assy 1 Remove the Cover Side R Refer to 4 2 2 2 Close the Frame Assy MPT 3 Remove the Cable 4 Remove the Screw Silver and to detach the SW Assy View A Cable View A ...

Page 130: ...nd 4 2 2 2 Remove the Cover Stay R and Cover Stay L Refer to 4 2 5 3 Remove the Screw Silver and remove the FG Cable from Guide Cable 4 Remove the Plate Shield CU Refer to 4 2 1 and 4 2 3 5 Disconnect the FFC and the Cable from the CU PU Board 6 Remove the Screw Silver and the Screw Black and remove the FG Film FFC and the Cable from the Guide Cable ...

Page 131: ...ing RE4 SK and screw 8 Remove the E shaped retainer ring RE6 SK 9 Remove the shaft stopper hinge and remove the shaft guide hinge 10 Remove the scanner Note to assemble 1 The case of to assemble for the scanner unit to the Mainbody insert the the Shaft Stopper hinge to the hole with the marked N on the Plate Assy Stay R ...

Page 132: ...he cover assy top ADF 2 Remove the tray assy document by pull it in the direction of the arrow 3 Open the ADF unit while pushing the portion B and push the claw of cover ADF R assy 4 Push the portion A Concurrent to push the 3 5 Remove the cover ADF R assy in the direction of the arrow Claw A Cover assy top ADF ViewA B ...

Page 133: ... 4 2 8 1 2 Detach a connector and from the ADF board MHD and remove the screw to remove the FG cable FG cable Clamp cable 3 Remove the clamp cable and pull the cables out of the hinge and Open the ADF unit 4 Remove the ADF unit by insert the screwdriver to gap between ADF unit and flatbed unit Screwdriver Flatbed unit ...

Page 134: ... Open the ADF unit 2 Remove the sheet document 3 Remove two claws to remove the paper weight assy and two spring PW ADF Claw Claw ADF unit 0 5mm 0 5mm Attention of affix the sheet document 1 Degrease the affix area of ADF unit 2 Remove the peeling off sheet 3 Set the sheet document see the figure below 4 Close the ADF unit ...

Page 135: ...Rev 1 4 15 Oki Data CONFIDENTIAL 4 REPLACEMENT OF PARTS 4 2 8 4 Hinge assy L Hinge assy R 1 Remove two screws L 10mm and remove the hinge Assy R L 10mm 2 Remove two screws L 10mm and remove the hinge Assy L L 10mm ...

Page 136: ...2 8 5 Cover ADF F Guide assy exit sub ADF assy ADF board MHD 1 Turn the ADF unit upside down and remove the support sponge 2 Remove the guide assy exit sub by pull it in the direction of the arrow 3 Open the cover top ADF 4 Push the claw of cover ADF F Cover top ADF Claw ...

Page 137: ...AL 4 REPLACEMENT OF PARTS 7 Remove the screw silver and remove the ADF board MHD 8 Remove two screws black and remove the ADF assy 5 Push the portion A 2 places Concurrent to push the 4 A 6 Remove the cover ADF F in the direction of the arrow ...

Page 138: ... Remove the guide assy C 6 Remove the guide assy D 7 Remove the E type retaining ring and remove the clutch 8 Remove the plate FG S 9 Remove the E type retaining ring and remove the clutch 10 Remove four screws black and remove the plate motor ADF 11 Remove two screws silver and remove the Motor KTL40M 12 Remove the bearing shaft and remove the roller assy eject ADF 13 Remove the retainer 4 spring...

Page 139: ... assy separator Spring separator Rubber friction 1 Remove the guide A sub with rubber friction 2 Remove the frame assy separator and spring separator Note If change the Remove the then degrease the and affix the If change the Remove the and together 4 2 8 8 Cable ADF Rev SNS 1 Remove the cable ...

Page 140: ... 4 20 Oki Data CONFIDENTIAL 4 REPLACEMENT OF PARTS 4 2 8 9 Cable ADF Reg SNS 1 Remove the cable 4 2 8 10 Frame assy OP 1 Remove two screws Black 2 Remove three claws to remove the frame assy OP 3 Remove the screw Black ...

Page 141: ...ile part A is raised in the direction of arrow Method of removing LCD cable 8 claws ViewA ViewA 8 Latches 4 Remove the button and lens to 5 Remove the cover bottom and cover cable and LCD assy 6 Remove eight latehes to remove the cover op panel 7 Remove the cover KB assy 8 Remove the film one touch and sheet one touch 3 Remove the rubber pad R and rubber pad L Part A LCD cable ...

Page 142: ...45762101TH Rev 1 4 22 Oki Data CONFIDENTIAL 4 REPLACEMENT OF PARTS 4 2 8 12 LCD assy 1 Remove the LCD assy ...

Page 143: ...Caulking 13 Remove seven screws black colored L 10mm M4 to remove the Cam hinge Note to assemble 1 Since a cable will be pushed by Plate Shield SU please place downward 4 2 8 13 Frame assy FB Note It exchanges it detaching the scanner unit from the MFP when the SU board is exchanged If replaced new board update Firmware according to Chapter 9 3 It is necessary to take the synchronization of the fi...

Page 144: ...45762101TH Rev 1 4 24 Oki Data CONFIDENTIAL 4 REPLACEMENT OF PARTS To printer To printer To printer L 10mm L 10mm L 10mm L 10mm L 10mm A C C D D A ...

Page 145: ...90 24 19 18 13 12 7 6 1 12 1 CIS1 17 1 IC15 56 43 28 15 42 29 14 1 CP9 CP7 CP3 CP1 OSC2 85 R71 R69 R62 R60 R57 R46 R45 R43 R40 BAT1 Q2 Q1 CCIS 1 34 IC8 18 24 19 13 7 6 1 16 13 12 9 8 5 4 1 C89 R131 L1 CP15 CP12 R109 R108 R107 R106 OPE1 1 16 MFPIF 50 1 F5 F1 C8 C7 C6 C3 C1 C85 C84 C82 C81 C78 C75 72 BF4 C51 FAX 1 C29 C26 C23 24 19 18 13 12 7 6 1 1 5 ADFS 8 1 ADFM 8 1 2 13 14 1 3 1 FBM 1 4 457500 Bo...

Page 146: ... Oki Data CONFIDENTIAL 4 REPLACEMENT OF PARTS 4 2 8 15 Frame assy hopping ADF 1 Slide the Gear shaft hopping while opening the stopper Stopper Gear shaft hopping 2 Remove the Frame assy hopping ADF and the Stopper Assy Gate ...

Page 147: ... 1 Remove the Scanner unit Refer to 4 2 8 2 Remove the screw and Round tip screw and remove the plate support L Remove three screws and remove plate stay L 3 Remove the Cover Front TOP Refer to 4 2 6 4 Remove the Plate Bracket CU Refer to 4 2 14 5 Remove four screws Silver to detach the Plate Assy Stay R ...

Page 148: ...uch or press the Lends of LED Head directly 4 2 11 Frame Assy TR 1 Open the Stacker Cover 2 Remove the ID UNIT 3 Take the Frame Assy TR out of the printer 4 Disengage the latches of Bearing TR on both ends 5 Hold the Bearing TR on the both side and then lift up the Roller Transfer At this moment Gear TR is also removed 6 Installing is performed by the inverse procedure with removing Note to assemb...

Page 149: ...K and slide the Shaft Dup Clutch in the direction of the arrow 4 Raise the printer unit and remove the screw Silver and Frame Duplex Assy 5 Remove the four pieces of Bearing Roller Feed Duplex and Duplex Belt 6 Installing is performed by the inverse procedure with removing Shaft Dup Clutch 4 2 13 DC Motor 1 Remove the Cover Side R Refer to 4 2 2 2 Remove the screw Silver and remove FG Cable 3 Remo...

Page 150: ...ove the PWR unit ACDC Switch Refer to 4 2 4 6 Unlatch the claws 2points and remove the Motor FAN 60 x 25 from the Duct Fan Power Air Claw 7 Remove three screws Silver to detach Duct Fan Power 8 Remove three screws Silver to detach DC Motor Note to assemble 1 Note to assemble for the direction of the Motor FAN s air flow ...

Page 151: ...able from the Guide Cable 3 Remove the screw Black and the screw Silver and remove FG_ Film FFC and Cable from Guide Cable 4 Unlatch the claws 4points and remove the Guide Cable Push 5 Remove the PWR unit ACDC Switch Refer to 4 2 4 6 Remove the DC Motor Rever to Refer to 4 2 13 7 Remove nine screws silver to detach the Plate Bracket CU Clamp together the screw and the FG Film Note to assemble ...

Page 152: ...e Plate Clutch MPT 11 Remove the MPT Clutch and the Gear MPT 12 Remove four screws Silver remove the Plate Gear 13 Remove the Gear Reduction 14 Remove the E ring RE3 SK remove the Regist Clutch 15 Remove the E ring RE3 SK remove the Hopping Clutch Remove the Spring from the current Regist Clutch or the current Hopping Clutch This Spring can be used to the new Regist Clutch or the new Hopping Clutc...

Page 153: ...45762101TH Rev 1 4 33 Oki Data CONFIDENTIAL 4 REPLACEMENT OF PARTS ...

Page 154: ...age the two tabs c and d and remove Motor FAN 80 25 5 Installing is performed by the inverse procedure with removing Note 1 Install Motor FAN 80 25 with the label side outward and with its notch fitted to the appropriate projection of the Plate Side L 2 See 7 2 2 for the HV Board connector layout 3 While removing or installing FAN do not press impeller of the FAN as shown by the following photo In...

Page 155: ...Shield and CU PU Board Refer to 4 2 3 3 Remove the Guide Cable Refer to 4 2 14 4 Remove the screw 5 Remove the two screws Silver Remove the Cover Eject and Plate Rear At this moment Head cable is also removed 6 With the Cover Assy Stacker closed detach Lever Link Fuser on both sides from the Cover Assy Stacker Closed the Cover Assy Stacker Release lever ...

Page 156: ...emove the Cover Lever 4 Remove the Lever Lock Top Lever Lock Button Remove the Spring Lever Top 5 Installing is performed by the reverse procedure with removing 7 Remove the Cover Assy Stacker and two Spring Torsion ST 8 Installing is performed by the reverse procedure with removing Note 1 Beware of not to touch the DC motor inattentively Do not rotate moter 2 Clamp together the screw and the FG F...

Page 157: ...ilver Remove the Plate Duct Assy 9 Remove the two screws Silver and lift off Fuser Assy after disconnecting every cable from it 10 Remove the Lever Link Fuser Both side 11 Assembling is performed by the inverse procedure with removing Note 1 Fuser Assy may be really hot beware of handling 2 Beware of not to touch the DC motor inattentively Do not rotate the motor 3 Install the Fuser Assy and Plate...

Page 158: ... Front Top Refer to 4 2 6 3 Remove the SW Assy Refer to 4 2 7 4 Remove two screws Silver Remove the Plate Front 5 Remove two screws Silver Remove the screw Black 6 Remove MPT Assy 7 Remove the Photo Interrupter 8 Installing is performed by the inverse procedure with removing Note 1 Beware of not to touch the DC motor inattentively Do not rotate motor View A View A ...

Page 159: ...4 2 14 3 Remove the PWR unit ACDC Switch Refer to 4 2 4 4 Remove the Duct Fan Power Refer to 4 2 13 5 Remove the Plate Bracket CU Refer to 4 2 14 6 Remove the Plate Base PWU Refer to 4 2 14 7 Remove the Spacer 8 Slide Cover Assy Rear and pull it out of the hole on the right of the printer Remove Cover Assy Rear carefully to avoid Cable Sensor FU from being caught ...

Page 160: ...places remove the Bearing Eject_R 2 places Remove the Bearing Feeder 12 Remove the Shaft Assy Eject 2 places 13 Remove the Separator FU Remove the Spring Separator_FU and Bearing Feeder 14 Remove the Stacker Sensor Remove the Cable Sensor FU 15 Installing is performed by the inverse procedure with removing Note to assemble 1 Beware of not to touch the DC motor inattentively Do not rotate motor ...

Page 161: ...m Remove the Cover Cassette Rear Assy and Guide Eject Lower Assy 5 Remove the post Remove the Separator SB FD and Spring Separator_SB 6 Remove the Lever Exit Sensor and Spring Sensor Exit 7 Remove the Exit Sensor 8 Installing is performed by the inverse procedure with removing Note 1 Beware of not to touch the DC motor inattentively Do not rotate motor 2 Install Cover Cassette Rear Assy carefully ...

Page 162: ... 4 2 16 3 Remove the Cover Assy Rear Refer to 4 2 20 4 Remove the Guide Eject Lower Assy Refer to 4 2 21 5 Remove two screws Silver Remove the Plate Gear Exit and Gear 6 Remove two screws Silver Remove the Eject Motor 7 Installing is performed by the inverse procedure with removing Note 1 Beware of not to touch the DC motor inattentively Do not rotate motor FFC cable ...

Page 163: ...tor FAN Refer to 4 2 15 8 Remove the Cover Assy Stacker Refer to 4 2 16 9 Remove the Fuser Assy Refer to 4 2 18 10 Remove the MPT Assy Refer to 4 2 19 11 Remove the Cover Assy Rear Refer to 4 2 20 12 Remove the Guide Eject Lower Assy Refer to 4 2 21 13 Remove the screw Black and the two screws Silver and separate the Plate Side L Assy 14 Remove the screw Silver screw Black and the two screws Silve...

Page 164: ... Spring Lock Cassette 3 Remove Lever Sensor Cassette and Spring Sensor from the Guide Cassette L 4 Remove two screws Silver Remove the Frame inner L 5 Remove the screw Black disengage the two tabs a and b and remove Guide ID L 6 Remove the Spring ID Lock L 7 Installing is performed by the inverse procedure with removing Note 1 Beware of not to touch the DC motor inattentively Do not rotate motor a...

Page 165: ...rew Black Remove the Guide ID R and Motor Fan 40 15 Board 974 Spring ID Lock R 7 Remove the screw Silver and screw M4 Remove the Guide Cable 8 Installing is performed by the inverse procedure with removing Note 1 Beware of not to touch the DC motor inattentively Do not rotate motor 2 Install Motor FAN 40 15 with the label side inward and with its notch fitted to the appropriate projection of Guide...

Page 166: ...er Pressure Remove the Roller Regist 9 Installing is performed by the inverse procedure with removing Note Beware of not to touch the DC motor inattentively Do not rotate motor 4 2 27 Roller Feed Assy 1 Separate the Front Assy Refer to 4 2 23 2 Remove two screws Black and Plate Feed B Be careful not to lose the gear that is removed with the plate 3 Remove two screws Black Separate the Regist Assy ...

Page 167: ...4 2 26 3 Remove two screws Black Remove the Holder Sensor 4 Remove the Lever In Sensor Remove the Spring Sensor 5 Remove the Lever WR Sensor Remove the Spring Sensor 6 Remove two Photo Interrupter 7 Installing is performed by the inverse procedure with removing Note 1 Beware of not to touch the DC motor inattentively Do not rotate motor 2 Make sure that the latch B of Holder Sensor has engaged the...

Page 168: ... 3 As pushing the tab downward open the cover black that is on the left of the feed roller 4 Pull out the feed roller downward 5 Installing is performed by the inverse procedure with removing Note 1 To install the feed roller with no gear Roller Feed NOW keep pushing it until it clicks into place and is fixed to the shaft 2 To install the feed roller with a gear Roller Pick Up keep pushing the cov...

Page 169: ...Lever Link and feed roller cover 4 Remove the feed sub roller by rotating it toward you 5 Open the feed roller cover by pushing its tab to the upwards and rotate 6 Remove the MPT roller by rotating it toward you Note 1 To install the feed roller Roller Assy MPT keep pushing the cover until the tab of the cover clicks into place 2 Check the feed roller cover locked Both side ...

Page 170: ...ring Retard 1 Remove the cassette 2 Open the Retard Cover by pushing two tabs in the directions of the arrows 3 Remove Frame Assy Retard by pushing it in the direction of the arrow Spring Retard is removed together 4 Installing is performed by the inverse procedure with removing Retard Cover Tab ...

Page 171: ...ENTIAL 4 REPLACEMENT OF PARTS 4 2 32 W LAN Board for MB472dnw 1 Remove the Cover Side R Refer to 4 2 2 2 Disconnect the W LAN cable from W LAN board 3 Remove the W LAN board 4 Installing is performed by the inverse procedure with removing ...

Page 172: ...ints of the printer Conversely it means that any other parts than the specified lubricating points must not be lubricated There is no need to lubricate in the midst of a disassembling job However if lubricating oil has been wiped off supply the specified oil Lubricating work 1 Symbols and names of oils EM D110 MOLYKOTE EM D110 No 44594501 EM 30LP MOLYKOTE EM 30LP No 44498501 GE 334C FLOIL GE 334C ...

Page 173: ... C Apply a normal amount of MOLYKOTE EM 30LP to the hatched areas Shaft end surface side Plate ID Gear Caulking 2 Plate Assy Side R EM 30LP Class C Apply a normal amount of MOLYKOTE EM 30LP to the hatched areas Shaft end surface side EM 30LP Class D Apply a normal amount of MOLYKOTE EM 30LP to the hatched areas Gear tooth surface Gear Reduction Z14 Z70 Plate Gear Eject_Caulking 4 3 1 Printer Plate...

Page 174: ...nt of MOLYKOTE EM 30LP to the hatching areas Shaft EM 30LP Class C Apply a normal amount of MOLYKOTE EM 30LP to the hatching areas Shaft Roller Pressure Roller Regist Grease prohibition EM 30LP Class C Apply a normal amount of MOLYKOTE EM 30LP to the hatching areas Shaft end surface side EM 30LP Class C Apply a normal amount of MOLYKOTE EM 30LP to the hatching areas Shaft end surface side ...

Page 175: ...ft The other side is also the same Two places in total EM 30LP Class B Apply a normal amount of MOLYKOTE EM 30LP to the hatched areas Center of shaft Note 1 1 Front Assy Plate Feed B_Caulking EM 30LP Class C Apply a normal amount of MOLYKOTE EM 30LP to the hatching areas Shaft end surface side Frame Assy Regist Gear Idle MPT Z35 Plate Feed B_Caulking Gear Idle Z35 Gear Reduction MPT Z37 20 EM 30LP...

Page 176: ... Center of shaft EM 30LP Class A Apply a normal amount of MOLYKOTE EM 30LP to the hatched areas Side of roller and ditch of shaft The other side is also the same Two places in total Shaft Idle Dup Roller Pinch Spring Torsion Pinch Note 1 Note 1 EM 30LP Class A Apply a normal amount of MOLYKOTE EM 30LP to the hatched areas Bearing surface of roller Holder Pickup 3 Grease area 3 Grease area ...

Page 177: ...nt of MOLYKOTE EM 30LP to the whole circle of gear teeth Of 2 places EM 30LP Class C Apply a normal amount of MOLYKOTE EM 30LP to surface of the post bearing portion the flange portions 2 Frame Assy MPT Boss Coupling HANARL SF 133 Class C Leave it for about 30 minutes drying time after painting HANARL SF 133 and then assemble the Boss Coupling ...

Page 178: ... EM 30LP Class C Apply a normal amount of MOLYKOTE EM 30LP to bearing surface of the shaft EM 30LP Class C Apply a normal amount of MOLYKOTE EM 30LP to flange surface Roller Pinch Shaft Idle Dup EM 30LP Class A Apply a normal amount of MOLYKOTE EM 30LP to the hatched areas Side of roller and ditch of shaft The other side is also the same Four places in total Frame Guide TR Roller Pinch Shaft Idle ...

Page 179: ...amount of MOLYKOTE EM 30LP to the hatching areas Bearing sliding surface EM 30LP Class C Apply a normal amount of MOLYKOTE EM 30LP to the hatched areas Gear tooth surface C 9310 or C 5005 Class A Apply a normal amount of Tetra C 9310 or C 5005 to the hatched areas Contact surface C 9310 or C 5005 Class A Apply a normal amount of Tetra C 9310 or C 5005 to the hatched areas Contact surface ...

Page 180: ...a normal amount of MOLYKOTE EM 30LP to the hatched areas Shaft end surface side EM 30LP Class A Apply a normal amount of MOLYKOTE EM 30LP to the hatched areas Shaft end surface side EM 30LP Class B Apply a normal amount of MOLYKOTE EM 30LP to the hatched areas Shaft end surface side Fuser Assy C 9310 or C 5005 Class A Apply a normal amount of Tetra C 9310 or C 5005 to the hatched areas Contact sur...

Page 181: ...Side R EM 30LP Class B Apply a normal amount of MOLYKOTE EM 30LP to the sliding surface with Drum Shaft hatched areas Cover Assy Stacker HANARL SF 133 Class C Lever Lock Button sliding surface All circumderence of the hatching portion Leave it for about 30minutes drying time after painting HANARL SF 133 and then Assemble the Lever Lock Button HANARL SF 133 should not protrude outside from the exte...

Page 182: ...IDENTIAL 4 REPLACEMENT OF PARTS Cassette Assy 250sht Leave it for about 30minutes drying time after painting HANARL SF 133 and then Assemble the Cassette Assy to printer HANARL SF 133 Class C x 2 Apply to the hatching portion of 2 place ...

Page 183: ...surface hatched areas EM D110 Class C Apply a small amount of MPLYKOTE EM D110 to the sliding surface hatched areas Application Direction 30 30 30 30 Gear Planet SF 133 Class C Apply a normal amount of HANARL SF 133 to the hatched area all circumference of post Shaft can be soaked in HANARL Leave it for about 3minutes drying time after painting HANARL SF 133 and then assemble the Gear Idle Assy ...

Page 184: ...ist Spring Thrust Bearing Shaft Bearing Regist Bearing Shaft Spacer Thrust EM 30LP Class C Apply a normal amount of MOLYKOTE EM 30LP to the hatched area all circumference of shaft EM 30LP Class C Apply a normal amount of MOLYKOTE EM 30LP to the hatched area all circumference of shaft GE 334C Class C Apply a normal amount of FLOIL GE 334C to the hatched area all circumference of shaft Portion I Bea...

Page 185: ...fter painting HANARL SF 133 and then assemble the ADF Assy Gear Double Z26 42 Gear Planet Gear Drivet_Z44 Gear TL Sep_Z43 55 Gear Double Z31_44 Gear Double Z27 55 EM 30LP Class E Apply a normal amount of MOLYKOTE EM 30LP to the hatched area all circumference Gear Planet_Z19 Gear Clutch Apply to 1 place with range 10mm or more The applica tion place is arbitrary It is application to a state without...

Page 186: ...ing area All circumference of shaft Shaft can be soaked in HANARL Leave it for about 3minutes drying time after painting HANARL SF 133 and then assemble the roller Portion G Portion H Portion J Portion G EM 30LP Class B Apply a normal amount of MOLYKOTE EM 30LP to the hatched area Boss Coupling and Gear Feed Z21 sliding surfaces Gear Feed Z21 Boss Coupling ...

Page 187: ...KOTE EM 30LP to the hatched area All circumference of shaft EM 30LP Class A Apply a small amount of MOLYKOTE EM 30LP to the hatched area Side surface of Washer A Washer A After assembly please wipe off the grease that protrude 1 Slider Hinge ADF Slider Hinge ADF Case Hinge L ADF Case Hinge R ADF EM D110 Class C Apply a normal amount of MOLYKOTE EM D110 to the hatched area ...

Page 188: ...M D110 Class C Apply a normal amount of MOLYKOTE EM D110 to the hatched area 4 surface 3 5 3 5 Between two ribs Two ribs and Outside 3 5mm of Two ribs Concave portion Concave portion SF 133 Class C Apply a normal amount of HANARL SF 133 to the hatched area 3 sliding surfaces SF 133 Class C Apply a normal amount of HANARL SF 133 to the hatched area 3 sliding surfaces Leave it for about 3minutes dry...

Page 189: ...ct ADF EM 30LP Class A Apply a normal amount of MOLYKOTE EM 30LP to the hatched area 2 5 2 5 EM 30LP Class A It is application with harpoon coat regular in shaft upper part It is application with the first Without the internal perimeter surface grease adhesion EM 30LP Class A It is application with harpoon coat regular in shaft upper part It is application at once to two places The shaft upper par...

Page 190: ... application point Grease lump possibility All laps EM 30LP Class C MOLYKOTE EM 30LP to a side flange side in a gear tooth side Apply all regular laps All laps 44596402PA Motor Assy Motor Gear Guide Assy Top B Guide Assy A SF 133 Class C Apply a normal amount of HANARL SF 133 to the hatching area All circumference of shaft Shaft can be soaked in HANARL Leave it for about 3minutes drying time after...

Page 191: ...ic Maintenance 5 1 Cleaning 5 2 5 2 Cleaning of LED lens array 5 4 5 3 Cleaning the Feed rollers and the Retard roller 5 5 5 4 Cleaning the MPT Feed rollers 5 5 5 5 Cleaning Rollers in the ADF 5 5 5 6 Cleaning the Document Glass 5 5 ...

Page 192: ...eaning 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 Note Do not touch the image drum LED lens array and LED head terminal ...

Page 193: ...inner While lines or White belt White spot pale printing LED HEAD If the vertical white lines and white belt white spot pale printing occur in printing as shown below the LED lens array should be cleaned or the toner cartridge should be replaced Note As for the LED lens array clean it with soft tissues or soft cloth after eliminating static electricity of a maintenance tool 1 Power off the MFP 2 O...

Page 194: ... 5 4 5 3 Cleaning the Feed rollers and the Retard roller 1 Power off the MFP Feed roller 2 Pull the tray out 3 Wipe two paper feed rollers inside the printer with a soft cloth that has been slightly moistened with water and then squeezed well Note Use water only ...

Page 195: ...1TH Rev 1 5 5 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 Retard roller 5 REGULAR MAINTENANCE ...

Page 196: ... 4 Cleaning the MPT Feed rollers 1 Power off the MFP 2 Open the MPT 3 Close the MPT gently to a position where the left and right tabs fit the arm grooves 4 Separate the tabs on the roller guide from the left and right arms by opening the arms outside tab arm tab arm ...

Page 197: ...uide until it comes in contact with the MFP 6 Wipe the two feed rollers with a tightly wrung cloth soaked in water through the opening for MPT Note Use water only roller guide 7 Close the MPT is performed by the inverse procedure with opening 5 REGULAR MAINTENANCE ...

Page 198: ...th 1 Power off the MFP 3 Wipe the document feed roller guide surface rubber pad and rubber sheet with a soft cloth that has been slightly moistened with water and squeezed well Wipe the whole surface of the roller while turning it with your hand Note If the rollers get too dirty wipe them with a soft cloth lightly moistened with neutral detergent and then wipe it again with a soft cloth lightly mo...

Page 199: ...uts 1 Open the document glass cover 2 Wipe the ADF document holding pad document glass and ADF document glass gently with a soft cloth that has been slightly moistened with water and squeezed well Caution Do not use benzine thinners or alcohol as a cleaning agent They may damage the plastic parts of the MFP Document holding pad Document glass ADF document glass 3 Close the document glass cover ...

Page 200: ...Oki Data CONFIDENTIAL 6 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 17 ...

Page 201: ...P EXIT Motor Face Up Down Switch Toner Sensor LED HEAD Assy USB I F USB LAN Network I F Cover Open Micro SW Inter Lock SW No connection High Voltage Power Supply ID Unit Toner Cartridge TR Roller Motor FAN Fuser Motor FAN Power TAG PR cable01 PR cable02 PR cable03 PR cable04 PR cable05 PR cable06 PR cable07 PR cable08 PR FFC01 PR FFC03 1 PR FFC03 2 PR cable09 1st Tray Paper end sensor 3P MPT Paper...

Page 202: ...on Photo Interrupter 3P Cover Open 3P SU cable03 SU cable02 SU cable01 SU cable04 SU cable06 SU cable05 4P Tube 50P 50P SU FFC02 16P 16P SU cable07 FG cable SU FFC01 Speaker 14P 14P SU cable08 3P 3P Shield LINE TEL 2P FAX Unit Board FXS 24P 24P SU FFC04 SU cable10 Note Same wire connection as Printer section Low Voltage Power Supply Host 5P SU cable09 34P 34P SU FFC08 Core01 Core04 Core05 Shield C...

Page 203: ...T1 C56 R21 BF1 BF3 16 1 R84 R113 R93 R117 R115 R116 Q22 R112 R100 R97 C38 C65 C66 C67 C68 28 1 HVIF F5 1 50 MFPIF CP7 D7 D10 Y A AF AF A 1 26 26 1 10 20 20 10 K IC20 14 1 1 14 A P A P IC23 IC4 R60 T A A T 9 1 9 1 IC10 R62 T A A T 9 1 9 1 IC11 1 6 7 12 13 18 19 24 C26 R134 R142 R61 R63 C3 IC6 C1 C72 IC7 C71 C52 R124 F12 R111 R135 C28 R114 R10 RM1 R12 C51 C50 R110 IC16 C17 C18 C16 C19 20 1 HEAD0 IC2...

Page 204: ...550 R506 C564 C569 C559 C551 C560 C546 C538 R647 R664 R657 R514 R511 R510 R534 R618 R616 R704 C671 C534 C670 C681 R676 C532 C673 R677 R646 R669 C526 R584 C535 R635 C504 C527 R684 R581 R529 R535 R536 R542 R662 R582 R663 R615 C572 C581 R502 R583 C536 C530 C528 C523 R572 R571 R560 R576 R574 R565 R564 R577 R575 R561 R530 R566 R570 R567 R701 R549 R686 R661 R544 R543 R505 RM509 RM502 RM507 RM506 C678 C6...

Page 205: ...oft power switch Board Component side 3 Toner sensor Board Component side 1 4 44711699 2 2 P6A CN1 SNS CN 1 C E K A 3 1 1 44413799 97T 4 ADF Relay Board Component side 1 1 1 1 MHD 1 1 1 1 1 8 6 3 3 4 8 2 2 2 44412199 2 2 CL1 CL2 JP1 JP2 MOTIF PM SNS1 SNS2 SNS3 SNSIF SOL ...

Page 206: ...HIF 22 1 C10 CP3 CP1 OSC3 OSC2 R85 R84 R71 R69 R62 R60 R57 R46 R45 R43 R40 BAT1 Q2 Q1 CCIS 1 34 IC8 18 24 19 13 7 6 1 IC2 16 13 12 9 8 5 4 1 C89 R131 L1 R115 CP15 CP12 R109 R108 R107 R106 16 OPE2 1 OPE1 1 16 MFPIF 50 1 F7 F5 F2 F1 C8 C7 C6 C3 C1 C85 C84 C82 C81 C78 C75 C73 C72 BF4 C52 C51 FAX 1 24 C50 C49 C44 C43 C38 C33 C29 C26 C23 24 19 18 13 12 7 6 1 CN2 5 1 1 5 ADFS 8 1 ADFM 8 1 2 13 14 1 SPK ...

Page 207: ...C544 C543 C541 C539 R575 C538 C537 R573 R572 C535 R571 R570 C532 C531 C530 R569 C529 C528 C527 C524 R560 R559 R555 R551 C514 R550 R549 R547 R546 R545 R544 C507 C501 R537 R536 R533 R660 C633 C632 C631 R504 OPAMP501 C630 C625 C619 C618 C615 C612 C610 BF516 BF515 33 32 29 28 25 24 21 20 17 16 15 14 13 10 9 6 1 8 11 14 16 22 15 1 2 3 5 6 7 10 12 17 19 20 23 24 25 27 28 30 32 33 34 35 36 37 38 39 40 42...

Page 208: ...IAGRAMS 6 FAX Board Component side BF7 BF9 BF8 BF11 BF10 VR1 2 2 45671299 LINE TEL R22 R21 R20 R19 CP3 CP2 R69 R68 R37 R36 R23 C35 BF2 BF1 28 22 21 14 8 7 1 16 13 12 9 8 5 4 1 CN2 1 2 6 5 CN1 1 2 6 5 CN3 24 1 ZNR1 ZNR2 S2 S1 REF2 REF1 RL1 SW1 FXS Board FXS 15 ...

Page 209: ... SW50 SW49 SW48 SW47 SW46 SW45 SW44 SW43 SW42 SW41 SW40 SW39 SW38 SW37 SW36 SW35 SW34 SW33 SW32 SW31 SW30 SW29 SW28 SW27 SW26 SW25 SW24 SW23 SW22 SW21 SW20 SW19 SW18 SW17 SW16 SW15 SW14 SW13 SW12 SW11 SW10 SW9 SW8 SW7 SW6 SW5 SW4 SW3 SW2 SW1 R560 R558 R557 R556 R555 R554 R553 R548 R536 R535 R530 R529 R528 R527 R505 R504 R503 R502 R501 LED509 LED508 LED507 LED506 LED505 LED504 LED503 LED502 LED501 ...

Page 210: ...C SHOCK TEST BEFORE TOUCHING PRIMARY SECONDARY 250V 250V T5A 230V 100V 120V HS1 HS2 30L HS3 WARNING CAUTION T16A CP4 F2 BD1 IC1 D2 CP5 CP6 CN1 3 1 CP2 CP3 C1 C5 C6 C7 C8 Z1 IC2 Q2 CN4 PC1 PC2 PC3 PC4 JP9 JP19 JP5 JP8 JP20 JP22 JP23 JP25 JP11 JP14 Q1 D3 D5 JP10 JP7 JP13 JP16 JP27 JP28 JP29 3 1 CN2 TAB1 TAB2 F1 L5 A1 A2 JP3 JP24 JP21 JP2 JP32 JP1 JP26 ZA7 ZA2 ZA3 ZA4 ZA5 ZA6 BF2 BF3 CN3 1 14 13 2 C9...

Page 211: ...MS Soldering side 45674799 5 5 C522 C501 R547 R507 R508 R510 R545 R546 R544 R550 R549 R548 R553 R552 R551 R541 R542 R538 C507 R528 R531 R561 R562 R563 RJ503 RJ504 RJ505 R573 ZD506 R543 R537 R513 C528 C529 R572 R574 R570 R569 C535 BF501 R576 ZD512 ZD511 ZD513 ZA501 ...

Page 212: ... JP42 JP41 JP40 JP39 JP38 JP37 JP36 JP35 JP34 JP33 JP32 JP31 JP30 JP29 JP28 JP27 JP26 JP25 JP24 JP23 JP22 JP21 JP20 JP19 JP18 JP17 JP16 JP15 JP14 JP13 JP12 JP11 JP10 JP9 JP8 JP7 JP6 JP5 JP4 JP3 JP2 JP1 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 CP3 CP2 CP1 CN3 CN1 C11 C10 C9 C8 C7 C6 C5 C4 C3 C2 C1 2 445540 1 97H DB CH SB FUSECUT RETURN 6 4 5 6 1 5 4 7 6 5 1 4 6 5 1 4 6 3 1 5 1 C E K A 4 6 5 1 1 28 44...

Page 213: ... R638 R637 R636 R631 R626 R625 R623 R620 R619 R616 R615 R614 R612 R611 R609 R608 R602 R600 R598 R596 R595 R593 R590 R589 R587 R586 R585 R584 R583 R580 R579 R578 R577 R553 R542 R541 R539 R513 R512 R511 R510 R503 Q508 Q501 D517 D516 D513 D512 C540 C536 C534 C532 HIGH VOLTAGE CAUTION 445540 RETURN FUSECUT SB CH DB P 44316999 4 4 ...

Page 214: ...r IP2 IP3 Both ends of IP2 and IP3 1 or less Clutch Hopping Regist MP Tray Cable Cable Cable Color Black Hopping Blue Regist Yellow MP Tray 1 2 C Between Pin1 and Pin2 240 Fuser Assy 1 2 3 4 Thermostat Heater Thermistor Heater Thermistor Between Pin1 and 2 Several to to several tens of ohms Between pin3 and 4 360K At the ambient temperature 25ºC ...

Page 215: ...NECTION DIAGRAMS Unit Circuit Diagram Part Diagram Resistance Value FAN Motor Fuser FAN 80 25 Red Black 24 V 1 FANALM N 3 0 V 2 M FAN Motor Drum FAN 40 15 Red Black 5 V 1 FANALM N 3 0 V 2 M FAN Motor Power FAN 60 25 Red Black 24 V 1 FANALM N 3 0 V 2 M ...

Page 216: ...ion of the firmware version of SU board and CU board 6 4 2 Instruction of FW update 1 FirmSuite includes all FWs listed below CU FW NIC FW PU FW SU FW Starting Logo The following is the updating order of FWs SU FW Starting Logo NIC FW PU FW CU FW 2 Don t turn off the machine while it displays the message below Wait a moment Executing maintence Please follow the steps below i Turn OFF ON the machin...

Page 217: ... board MRM in accordance with the 45724901YA 457249 6 6 45554699 MRM Board MRM R93 R97 D7 A AF 1 1 10 10 IC20 R60 T A A T 9 1 9 1 IC10 R62 T A A T 9 1 9 1 IC11 1 6 7 12 13 18 19 24 C26 R63 IC6 C28 C50 IC16 17 18 16 OSC3 RM3 BF11 ZA12 ZA15 Designated stamping location A designated article number is stamped in the area for maintenance board indication on the SU board MSU in accordance with the 45762...

Page 218: ...Oki Data CONFIDENTIAL 7 APPENDIX 7 1 List of Initialized range 7 2 ...

Page 219: ...R change 16 Factory default Country code change 17 Default setting by sales companies etc CU FW update NIC FW update Scanner FW update Registration data E mail address registration data CL CL CL Access control information registration data CL CL CL Speed dial registration data CL CL CL F code bulletin board document CL CL CL CL CL Profile list CL CL CL Networkconnected PCs list CL CL CL Job memory...

Page 220: ...by sales companies etc CU FW update NIC FW update Scanner FW update Setup data Administrator password FR FR FR FR FR Paper Sorting setup FR FR FR FR Copy function setup FR FR FR FR Menu under Admin Setup Copy Setup Fax function setup FR FR FR FR FR 18 FR 18 Menu under Admin Setup Fax Setup F code box FR FR FR FR FR Scanner function setup FR FR FR 19 FR FR Menu under Admin Setup Scanner Setup Print...

Page 221: ...les companies etc CU FW update NIC FW update Scanner FW update Setup data Secure print server setup FR FR FR FR FR FR Menu under Admin Setup Network Menu Secure Protocol Server Setting Management setup FR 25 FR FR FR Menu under Admin Setup Management Time FR FR FR Value set through Admin Setup User Install Time Setup Set Daylight Saving Time Zone User Install FR FR FR FR Menu under Admin Setting U...

Page 222: ...fault setting by sales companies etc CU FW update NIC FW update Scanner FW update Setup data Printer maintenance FR 26 JA setting information CL 27 CL CL Job Fax Tx data pending CL CL CL CL CL Fax Rx data Print wait Include Secure Receive image CL CL CL CL CL Fax Rx data confidential box CL CL CL CL CL Secure print job CL CL CL CL CL Encrypted secure print job CL CL CL CL CL Logs JA log informatio...

Page 223: ...efault setting by sales companies etc CU FW update NIC FW update Scanner FW update Logs Error log CL Dialing history CL CL Stored in RAM Erased when poweroff i e when reboot operation is executed the contents disappear Fax Tx Rx history CL CL CL CL CL Mail address history CL CL CL CL CL IFAX send address history CL CL CL CL CL Fax communication result information CL CL CL CL CL Including T30 monit...

Page 224: ...set Admin Password This menu is used to initialize only the administrator password by support when users forget the administrator password 15 ALL RESET Service Maintenance System Maintenance All Reset Not displayed in MPS mode This menu must be executed to delete customer information before dealers etc lend devices to the next customers 16 OKIUSER change Service Maintenance System Maintenance OKIU...

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Oki MB472w, Maintenance Manual

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