Oki MB461 - Page 6

44871001TH Rev.6
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Oki Data CONFIDENTIAL
6.3 Maintenance Utility .........................................................................................6-11
6.3.1 Maintenance Utility ................................................................................... 6-11
6.4 Self-diagnostic mode .....................................................................................6-13
6.4.1 Operator Panel .........................................................................................6-13
6.4.2 Ordinary self-diagnostic mode (level 1) .................................................... 6-16
6.4.2.1 Entering self-diagnostic mode (level 1) ............................................6-16
6.4.2.2 Exiting self-diagnostic mode .............................................................6-16
6.4.2.3 Switch scan test ...............................................................................6-17
6.4.2.4 Motor clutch test ...............................................................................6-19
6.4.2.5 Test print ...........................................................................................6-21
6.4.2.6 Consumable item counter display ....................................................6-24
6.4.2.7 Number of print copies counter display ............................................6-24
6.4.2.8 Switching between the Factory mode and the Shipping mode ........6-25
6.4.2.9 Self-diagnostic function setting .........................................................6-25
6.4.2.10 LED head serial number display .....................................................6-26
6.4.2.11 NVRAM parameter setting ..............................................................6-26
6.4.3 Adjustment at part replacement ...............................................................6-27
6.4.3.1 EEPROM data upload / download method .......................................6-27
6.5 Switch pressing function when power supply is turned on .............................6-28
6.6 Settings after Parts Replacement ..................................................................6-29
6.6.1 Notes on CU/PU board (98M) replacement .............................................6-29
6.6.2 Notes on SU board (MHE)/Scanner Unit replacement .................................. 6-32
7. REGULAR MAINTENANCE ..................................................7-1
7.1 Periodic Maintenance ......................................................................................7-2
7.1.1 Periodic Replacement Parts ....................................................................... 7-2
7.1.2 Cleaning .....................................................................................................7-2
7.1.3 Cleaning of LED lens array ........................................................................7-2
7.1.4 Cleaning the Feed rollers and the Retard roller .........................................7-3
7.2 Cleaning Rollers in the ADF ............................................................................7-4
7.3 Cleaning the Document Glass .........................................................................7-5
8. TROUBLESHOOTING PROCEDURES ................................8-1
8.1 Precautions prior to repair................................................................................8-2
8.2 Items to be checked prior to taking action on abnormal images ...................... 8-2
8.3 Precautions when taking action on abnormal images .....................................8-2
8.4 Preparations for troubleshooting ......................................................................8-2
8.5 Troubleshooting method ................................................................................... 8-3
8.5.1 LCD messages list .....................................................................................8-3
8.5.2 Service Call List .......................................................................................8-32
8.5.3 Fax Error List ............................................................................................ 8-36
8.5.4 Email/Internet FAX/FAX Server Error List ................................................8-37
8.5.5 Preparing for troubleshooting ...................................................................8-38
8.5.6 Print Troubleshooting ................................................................................ 8-65
8.5.7 Response after Flash compulsive initialization .........................................8-70
8.5.8 Copy Image Abnormality Error Troubleshooting ....................................... 8-70
8.5.9 Network Troubleshooting ..........................................................................8-71
8.5.10 Wireless Troubleshooting .........................................................................8-72
8.6 Fuse Checking ...............................................................................................8-73
9. CONNECTION DIAGRAMS .................................................9-1
9.1 Check of resistance values .............................................................................9-2
9.2 Layout of parts ................................................................................................9-4
9.3 Firmware Information ....................................................................................9-13
9.3.1 ROM control numbers ..............................................................................9-13
9.3.2 Instruction of FW update ..........................................................................9-13
9.3.3 Checking and indication of the revision number .......................................9-14
9.3.4 Stamp of maintenance board indication ................................................... 9-14
9.3.5 FW Update flow in case of Error 049 (for MB451, MB451w) ...................9-15
10. APPENDIX ........................................................................10-1
10.1 List of Initialized range ..................................................................................10-2
10.2 Maintenance Manual for Second Tray unit ...................................................10-9