Oki C5500 Maintenance Manual page 6

5.3.3 Various types of print on the individual printer equipped with controller ............ 148
5.3.4 Functions of keys when depressed at power-on ................................................ 148
5.4 Setup after replacement of parts ...................................................................................... 149
5.4.1 Precautions on the replacement of engine control PCB ..................................... 149
5.4.2 Setup of EEPROM after replacement of SP1/TBH PCB .................................... 152
5.4.2.1 Replacement of EEPROM after replacement of TBH PCB ................... 152
5.4.2.2 Setup of CU Serial Number ................................................................... 152
5.4.3 Setup of destination ............................................................................................ 153
5.5 About the manual setup of Print density adjustment ........................................................ 154
6. PERIODICAL MAINTENANCE ....................................................................... 155
6.1 Recommended replacement parts ................................................................................... 155
6.2 Cleaning ........................................................................................................................... 155
6.3 Cleaning of LED lens array .............................................................................................. 155
6.4 Cleaning of pickup rollers ................................................................................................. 157
6.5 Internal cleaning of printer ............................................................................................... 158
7. TROUBLESHOOTING PROCEDURES .......................................................... 160
7.1 Precautions prior to repair ................................................................................................ 160
7.2 Items to be checked prior to taking action on abnormal images ...................................... 160
7.3 Precautions when taking action on abnormal images ...................................................... 160
7.4 Preparations for troubleshooting ...................................................................................... 160
7.5 Troubleshooting method .................................................................................................. 160
7.5.1 LCD Message List .............................................................................................. 161
7.5.2 Preparing for troubleshooting ............................................................................. 177
7.5.2.(1)LCD Display Malfunction ................................................................................. 179
7.5.2.(2)Irregular Operation of the device after turning on the power ........................... 182
7.5.2.(3)Paper Feed Jam(Error 391:1st Tray) ............................................................... 192
7.5.2.(4)Paper Feed Jam (Error 390:Multi-purpose Tray) ............................................. 194
7.5.2.(5)Paper Path Jam(Error 381) ............................................................................. 196
7.5.2.(6)Paper Exit Jam(Error 382) ............................................................................... 201
7.5.2.(7)Duplex Print Jam(Error 370,371,372,373,383) ............................................... 204
7.5.2.(8)Paper Size Error (Error 400) ........................................................................... 206
7.5.2.(9)ID Unit Up-Down Error(Service Call 140-143) ................................................. 207
7.5.2.(10)Fuser Unit Error(Error 170-177) .................................................................... 209
7.5.2.(11)Motor Fan Error(Error 120,127,051) .............................................................. 210
7.5.2.(12)Print Speed is Slow (Low Performance) ......................................................... 211
7.5.2.(13)Option unit is not recognized .......................................................................... 211
7.5.2.(14)LED head is not recognized(Error 131,132,133,134) .................................... 212
7.5.2.(15)Toner cartridge is not recognized(Error 540,541,542,543) ............................ 213
7.5.2.(16)Fuse Cutout Error (Error 150-155) ................................................................ 214
43085101TH Rev.1
Oki Data CONFIDENTIAL
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