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
Содержание C710
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