Table of Contents
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Symptom
Blurred back-
ground
Black pages
Blank pages
Paper wrinkles
during printing.
Cause
The toner cartridge
may be defective.
The drum cartridge
may be defective.
The toner cartridge
may be defective.
The drum cartridge
may be defective.
The drum cartridge
may be defective.
The image transfer
roller unit may be
defective.
The image transfer
belt unit may be
defective.
Possible causes
include:
• The paper being
used is not compati-
ble with the printer.
• Paper is not loaded
properly in the tray.
• The fusing unit
requires replace-
ment.
Improving Print Quality
Action
Change the cartridges.
• See Toner Cartridge
p. 7-1
• See Drum Cartridge
p. 7-14
Change the cartridges.
• See Toner Cartridge
p. 7-1
• See Drum Cartridge
p. 7-14
Change the cartridges and/
or the transfer belt unit.
• See Drum Cartridge
p.7-14
• See Image Transfer
Roller Unit
p. 7-25
• See Image Transfer Belt
Unit
p. 7-32
Check these conditions
closely and take necessary
action.
• Compatible types of
paper.
p. 2-17
•
p. 2-21
•
p. 7-28
8-22
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Table of Contents
Troubleshooting
