Separation Roller Pressure Adjustment....................................................................................................218
Relay Sensor..............................................................................................................................................219
Registration Sensor....................................................................................................................................220
PCBs and HDD...............................................................................................................................................221
BCU Board (Base Engine Control Unit)...................................................................................................221
Controller Board........................................................................................................................................221
IPU Board...................................................................................................................................................223
Motherboard.............................................................................................................................................224
Development Power Pack.........................................................................................................................228
PSU Board..................................................................................................................................................229
HDD............................................................................................................................................................229
NVRAM......................................................................................................................................................230
Print Image Adjustment..................................................................................................................................233
4. Troubleshooting
Overview........................................................................................................................................................237
Important SP Codes...................................................................................................................................237
Program Download...................................................................................................................................237
Jam Detection............................................................................................................................................243
Timing Charts.............................................................................................................................................244
Service Mode.................................................................................................................................................248
Service Call Conditions ............................................................................................................................248
SC Code Descriptions...............................................................................................................................248
Jam Codes.................................................................................................................................................284
Additional SC Codes Printed in SMC Report..........................................................................................285
Other Problems..............................................................................................................................................291
Blown Fuse Conditions..............................................................................................................................291
Common Problems....................................................................................................................................291
Frequent Paper Jams.................................................................................................................................292
5. Service Tables
Service Program Mode.................................................................................................................................295
General Notes...........................................................................................................................................295
Entering and Leaving the Service Program Mode..................................................................................295
Printer Controller Service Mode...............................................................................................................296
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