Oki C7500n, Maintenance Manual

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41955801TH Rev.8
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Oki Data CONFIDENTIAL
2.3.44 Duplex Unit ....................................................................................................... 65
2.3.45 Guide Rails (L) and (R) ..................................................................................... 66
2.3.46 Duplex Transport Assembly ............................................................................. 67
2.3.47 CU Assy ............................................................................................................ 69
2.3.47 CU Assy ............................................................................................................ 69
3. Adjustment .................................................................................................... 72
3.0 System Maintenance MENU .......................................................................................... 72
3.0.1 ID Check Pattern Printing ( " TEST PRINT MENU " item ) ............................... 73
.......................................................................................................................... 73
3.1 Maintenance Mode and Functions ................................................................................. 73
3.1.1 Maintenance menu ........................................................................................... 73
3.1.2 Engine maintenance mode ............................................................................... 75
3.1.2.1
Operator panel .................................................................................. 75
3.1.2.2 Normal self-diagnostic mode (Level 1) .............................................. 75
3.1.2.2.1 Entering self-diagnostic mode (Level 1) ............................ 76
3.1.2.2.2 Exiting the self-diagnostic mode ....................................... 76
3.1.2.3 Switch scan test ................................................................................ 76
3.1.2.4 Motor clutch test ................................................................................ 80
3.1.2.5 Test print ........................................................................................... 82
3.1.2.6 Initializing NVM ................................................................................. 86
3.1.2.7 Displaying the consumables counter ................................................ 87
3.1.2.8 Displaying the consumables continuation counter ............................ 87
3.1.2.9 Panel display details ......................................................................... 88
3.1.3 Various print jobs with single printer unit attached with a controller ................. 93
3.2 Adjustment After Replacing Parts .................................................................................. 94
3.2.1 Precautions in replacing the engine control board ........................................... 94
3.2.2 Precautions in replacing EEPROM ................................................................... 94
3.2.3 Replacing EEPROM after replacing the CU board ........................................... 95
3.2.4 Destination Setting (Checking Metod: Printing Demo Page) ............................ 95
3.2.5 Recovery Flash ROM data on CU board .......................................................... 96
3.2.6 Notes on replacing Oki LAN8100e or CU boards equipped with Oki LAN8100e96
3.3 Adjusting the Density ..................................................................................................... 96
3.4 Paper Thickness Detection Sensitivity Adjustment and Media Thickness Detection
Value Check ................................................................................................................... 97
3.4.1 Applicable Operating Systems and Interfaces, and File Required ................... 97
3.4.2 Setting .............................................................................................................. 98
3.4.2.1
Menu Setting ..................................................................................... 98
3.4.2.2 Media Setting .................................................................................. 100
3.4.2.3 Sensitivity Adjustment ..................................................................... 101
3.4.2.4 Actions for NG Sensitivity Adjustment ............................................. 102
3.4.3 Inputting the density of the calibration chip for density detection ................... 103
3.4.3.1
Density Adjustment Menu Setting ................................................... 103
3.4.4 Electronic Serial Number Input ....................................................................... 105
4. regular maintenance ................................................................................... 106
4.1 Parts Replaced Regularly ............................................................................................ 106
4.2 Cleaning ....................................................................................................................... 106
4.3 Cleaning the LED Lens Array ...................................................................................... 106
4.4 Cleaning the Pick-up Roller ......................................................................................... 106
5. Troubleshooting Procedures ..................................................................... 107
5.1 Precautions before troubleshooting ............................................................................. 107
5.2 Precautions before handling an abnormal image ........................................................ 107
5.3 Precautions upon handling an abnormal image ........................................................... 107
5.4 Preparing for Troubleshooting ..................................................................................... 108