Oki C710 - Page 6

43856301TH Rev.3
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Oki Data CONFIDENTIAL
5. Maintenance Menu ................................................................91
5.1 System maintenance menu (for maintenance engineer) ...................................92
5.2 Maintenance Utilities ..........................................................................................93
5.3
Maintenance menu functions ..............................................................................95
5.3.1
Self-diagnostic mode ..................................................................................95
5.3.1.1
Operation panel ...................................................................................95
5.3.1.2
Ordinary self-diagnostic mode (level 1) ...............................................97
5.3.1.2.1
How to enter the self-diagnostic mode (level 1) ............................97
5.3.1.2.2
How to exit the self-diagnostic mode .............................................97
5.3.1.3
Switch scan test ...................................................................................98
5.3.1.4 Motor clutch test ...................................................................................100
5.3.1.5 Test print ...............................................................................................102
5.3.1.6
Color registration correction test ........................................................106
5.3.1.7
Density correction test .......................................................................107
5.3.1.8
Consumable item counter display ......................................................109
5.3.1.9
Number of print copies counter display .............................................110
5.3.1.10
Switching between the Factory mode and the Shipping mode ..........110
5.3.1.11
Self-diagnostic function setting ..........................................................111
5.3.1.12 LED head serial number display .......................................................112
5.3.1.13
NVRAM parameter setting ...............................................................112
5.3.2
Various prints with the printer as a standalone unit ..................................112
5.3.3
Functions of keys at power on ..................................................................113
5.4
Setups upon completion of part replacement ...................................................114
5.4.1 Precautions when replacing the engine control board .................................114
5.4.2 EEPROM setting upon completion of CU board ............................................
replacement ..........................................................................................................115
5.5
Density control manual setting .........................................................................116
5.6
Printer boot menu list ........................................................................................117
6. Periodic Maintenance ......................................................... 118
6.1 Cleaning ...........................................................................................................119
6.2 How to clean the LED lens array ......................................................................120
6.3
How to clean the pickup roller ..........................................................................122
6.4
How to clean inside of printer ...........................................................................123
7. Troubleshooting and repair procedure .............................125
7.1 Before starting the repair work .........................................................................126
7.2 Confirmation items before taking corrective action against abnormalities .......126
7.3
Precautions when taking corrective action against abnormality .......................126
7.4
Preparation for troubleshooting ........................................................................126
7.5
Troubleshooting method ...................................................................................127
7.5.1
LCD message list ......................................................................................127
7.5.2
Preparation for troubleshooting .................................................................148
7.5.3
Troubleshooting the abnormal images ......................................................180
7.5.4
Network troubleshooting ...........................................................................187
7.5.4.1
Connection error occurs with the Web browser .................................187
7.5.4.2
Print operation is not possible ............................................................193
7.5.4.3
Cannot create Certificate ...................................................................194
7.5.4.4
Installation of Certificate is not possible.............................................194
7.5.4.5
Other questionnaires .........................................................................196
7.5.4.6
Restrictions when using Internet Explore 7 .......................................198
7.6
Fuse check .......................................................................................................199
7.7
Paper cassette switches versus Paper size correspondence table ..................200
7.8
Data protection kit-A1 .......................................................................................201
7.8.1
Data protection kit-A1 (DPK-Al) overview .................................................201
8. Connection diagrams..........................................................205
8.1 Resistance value check ....................................................................................206
8.2 Parts location ....................................................................................................210
8.3
F/W version number .........................................................................................221
8.3.1
ROM control number .................................................................................221
8.3.2
ROM version check and display ................................................................222
8.3.3
PCB Maintenance Indication Stamp .........................................................222