A SERVICE OF

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7 Poor fusing
• Is paper of the specified grade being used?
• No Use paper of the specified grade.
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• Yes Is the spring of the back-up roller normal?
• No Replace the spring.
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• Yes Is the contact of the fusing unit assy in proper contact with the contact assy (see
Fig. 6-4
G
)?
• No Adjust the contact of the fusing unit assy to make a proper contact with the
contact assembly.
▼
• Yes Replace the fusing unit assy.
• Has the problem been removed?
• Yes End
Note:
After replacing the fusing unit assy, set the printer in the engine mainte-
nance mode by turning the power on while pressing the FORM FEED and
ENTER keys, and reset the fuser counter (see 4.1).
▼
• No Replace the Main Control PCB or power supply board.