Removing the fuser motor..................................................................................................222
Removing the carousel-engagement motor.......................................................................223
Removing the air duct and fan............................................................................................223
Printed circuit assemblies (PCAs).......................................................................................................225
Removing the sub-high-voltage transformer PCA..............................................................225
Removing the high-voltage transformer PCA.....................................................................226
Removing the low-voltage PCA..........................................................................................226
Trays....................................................................................................................................................229
Removing tray 1 (multipurpose tray)..................................................................................229
Removing optional tray 2 (250-sheet tray).........................................................................230
Removing the optional tray 2 pickup roller.........................................................................233
Replacing the optional tray 2 separation pad.....................................................................235
6 Troubleshooting
Support strategy..................................................................................................................................238
Troubleshooting process.....................................................................................................................239
Troubleshooting checklist...................................................................................................239
Control-panel messages......................................................................................................................244
Alert and warning messages..............................................................................................244
Critical error messages.......................................................................................................253
Clearing jams.......................................................................................................................................256
Media jams occur in the device..........................................................................................256
Tips to avoid media jams ..................................................................................256
Where to look for jams.......................................................................................256
To clear a media jam inside the device.............................................................257
To clear output area jams..................................................................................258
Media jams occur in the automatic document feeder (ADF)..............................................260
To clear a media jam from the automatic document feeder (ADF) ..................260
Print problems......................................................................................................................................263
Print quality problems.........................................................................................................263
Improving print quality........................................................................................263
Understanding print-quality settings..................................................263
To temporarily change print-quality settings.....................263
To change print-quality settings for all future jobs............263
Identifying and correcting print defects..............................................................263
Print-quality checklist.........................................................................264
General print quality issues...............................................................265
Solving issues with color documents................................................271
Media-handling problems...................................................................................................272
Print-media guidelines........................................................................................272
Solving print-media problems............................................................................273
Performance problems.......................................................................................................274
Scan problems.....................................................................................................................................276
Solving scanned image problems.......................................................................................276
Scan quality problems........................................................................................................277
Preventing problems..........................................................................................277
Solving scan-quality problems...........................................................................278
Scan-specific error messages............................................................................................279
Copy problems.....................................................................................................................................280
Preventing problems...........................................................................................................280
viii ENWW
