Oki C3530nMFP Maintenance Manual page 6

7. TrouBlesHooTing ProCeDures ............................................................121
7.1 Precautions prior to repair ................................................................................................. 121
7.2 Items to be checked prior to taking action on abnormal images ....................................... 121
7.3 Precautions when taking action on abnormal images ...................................................... 121
7.4 Preparations for troubleshooting ....................................................................................... 121
7.5 Troubleshooting method .................................................................................................... 121
7.5.1 LCD Message List ...............................................................................................122
7.5.2 Preparing for troubleshooting .............................................................................. 171
7.5.2.(1)LCD Display Malfunction .................................................................................... 173
7.5.2.(2)Irregular Operation of the device after turning on the power ............................. 174
7.5.2.(3)Paper Feed Jam (1st tray) .................................................................................183
7.5.2.(4)Paper Feed Jam (Multipurpose tray) .................................................................185
7.5.2.(5)Paper transport jam ........................................................................................... 187
7.5.2.(6)Paper Exit Jam ..................................................................................................192
7.5.2.(7)Paper Size Error .................................................................................................195
7.5.2.(8)ID Unit Up-Down Error (Service Call 140-143) ..................................................196
7.5.2.(9)Fuser Error (Service call 170-177) ..................................................................... 197
7.5.2.(10)Motor Fan Error(Service call 127) ....................................................................198
7.5.2.(11)Print Speed is Slow (Low Performance)...........................................................199
7.5.2.(12)LED head is not recognized(Error 131,132,133,134) ........................................199
7.5.2.(13)Toner cartridge is not recognized (Error 540, 541, 542, 543) ..........................200
7.5.2.(14)Fuse Cut Error (Service call 150-155) ..............................................................201
7.5.2.(15)Dew Condensation Errors (Service call 123) ...................................................202
7.5.2.(16) RFID Related Error ..........................................................................................203
7.5.3 Image Problem Troubleshooting ..........................................................................204
7.5.3.(1)Color is totally pale (Figure 7.2 a ) .....................................................................205
7.5.3.(2)Background is dirty (Figure 7.2 B ) ....................................................................206
7.5.3.(3)Blank Print (Figure 7.2 C ) .................................................................................207
7.5.3.(4)Vertical lines are printed.....................................................................................208
7.5.3.(5)Cyclic Print Trouble (Refer to Figure 7.2 e ) ......................................................209
7.5.3.(6)Color drift is wide. .............................................................................................. 210
7.5.3.(7)Solid Black Print ................................................................................................. 211
7.5.4 Response after Flash compulsive initialization .................................................... 212
7.5.5 Network Troubleshooting ..................................................................................... 213
7.6 Fuse Checking .................................................................................................................. 214
8. ConneCTion DiagraMs ..............................................................................215
8.1 Check of resistance values ............................................................................................... 215
8.2 Component layout ............................................................................................................. 218
43605601TH Rev. 1
Oki Data CONFIDENTIAL
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