Reinstall the Tray 4 rollers
..............................................................................
280
Tray 4 registration assembly
............................................................................................
280
Tray 4 drive motor
............................................................................................................
281
Tray 4 drive assembly
......................................................................................................
282
Tray 4 controller board
.....................................................................................................
283
Paper-size detection switch PCA
....................................................................................
284
Reinstall the paper-size switch PCA
...............................................................
285
Tray 4 power supply
........................................................................................................
285
Tray 4 pickup assembly
...................................................................................................
286
Tray 4 paper-connecting unit
...........................................................................................
288
7
Solve problems
Troubleshooting process
..................................................................................................................
290
Preliminary operating checks
...........................................................................................
290
Installation environment
..................................................................................
290
Media checks
..................................................................................................
291
Scanner and ADF checks
...............................................................................
291
General troubleshooting information
................................................................................................
292
Abnormal noises are evident, such as grinding or chattering when the main motor is
turned on
..........................................................................................................................
292
Media does not feed from Tray X when printing from a software program; the paper-
path test is successful
......................................................................................................
292
Media does not print from Tray 4
.....................................................................................
292
The product stops printing and hangs on certain jobs
.....................................................
293
Envelopes are wrinkling
...................................................................................................
293
Fusing is poor
..................................................................................................................
293
The product feeds from an incorrect tray when different media is selected for the first
page of the job
.................................................................................................................
293
Power-on checks
..............................................................................................................................
295
Malfunction troubleshooting
.............................................................................................................
296
Troubleshooting by using control-panel messages
..........................................................................
297
Event log page
................................................................................................................
297
Print the event log
...........................................................................................
297
Interpret the event log
.....................................................................................
297
Sample event log
............................................................................................
298
View the event log
..........................................................................................
298
Control-panel error messages
..........................................................................................................
299
User- and service-level diagnostics
..................................................................................................
322
Copy processor LEDs
......................................................................................................
322
Troubleshooting menu
.....................................................................................................
323
Paper-path test
................................................................................................................
324
Print a paper-path test
.....................................................................................
324
Service test
......................................................................................................................
324
Perform a service test
.....................................................................................
324
ENWW
xi