User`s guide

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Flowcharts and Tables Troubleshooting
Table 20. Vertical Elongation or Foreshortening
Step Check Result Action
1 Run the Extended Power-
On Self Test (see “Printer
Diagnostics”). Does the test
indicate a specific error?
Ye s
No
Go to the appropriate troubleshooting
table that describes the error
indicated.
Perform the first module exchange
listed below. If the problem persists,
reinstall the original module and
perform the next exchange:
• Replace the laser/scanner assembly.
• Replace the DC controller board.
• Replace the main motor.
Table 21. Bad Fusing
Step Check Result Action
1 Are the fuser roller levers in
a down (print-mode)
position?
No
Ye s
Set the envelope levers to a down
(print-mode) position.
Go to Table 6, Fuser Assembly Error.
Table 22. Blank Spots/Random Pattern or Location
Step Check Result Action
1 Try printing with
known-good paper. Does
the problem persist?
No Problem solved.
2 Are humidity conditions
according to
specifications?
No Inform the customer of the changes
that are necessary.
3 Are you printing on the
correct side of the paper?
No
Ye s
Turn over the paper.
Go to Table 21, Bad Fusing.