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47
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Printing Troubles
Troubleshooting
1
2
Index
Maintenance
Print quality is poor
Memo
z
If the problem is not solved using the following methods, contact your designated help desk.
Symptom
Cause
Troubleshooting
Reference
pages
White stripe in perpendicular
direction.
Paper feeding direction
LED head is unclean.
Wipe LED head with a soft
tissue paper.
Low toner.
Replace the toner cartridge.
Deposit of foreign substances.
Replace the image drum.
Window film of image drum is
unclean.
Wipe window film with a soft
tissue paper.
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Image drum has not been set
correctly.
Please set the image drum
correctly.
Printing is blurred in
perpendicular direction.
Paper feeding direction
LED head is unclean.
Wipe LED head with a soft
tissue paper.
Low toner.
Replace the toner cartridge.
Paper not supported.
Use recommended paper.
Basic
Printing is light.
The toner cartridge is not
installed correctly.
Re-install the toner cartridge.
Low toner.
Replace the toner cartridge.
Paper is moist.
Use paper stored at appropriate
temperature and humidity.
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Paper not supported.
Use recommended paper.
Basic
Paper not supported.
Type and thickness setting of
paper is inappropriate.
Correct [Media Weight] in
the operation panel to the
appropriate value. Or, change
[Media Weight] to a thicker
value than the present value.
Advanced
Recycled paper is used.
Correct [Media Weight] in
the operation panel to the
appropriate value. Or, change
[Media Weight] to a thicker
value than the present value.
Advanced
Printing is blurred in some
parts. Solid printing will result
in the appearance of white dots
or lines.
Paper contains moisture. Dry it. Use paper stored at appropriate
temperature and humidity.
Basic
Inappropriate settings of [Paper
Black Setting] or [Paper Color
Setting].
Change the value of [Printer
Setting]>[Paper Black Adjust]
or [Paper Color Setting].
Advanced
Stripes in perpendicular
direction.
Paper feeding direction
There are dents on the image
drum.
Replace the image drum.
Low toner.
Replace the toner cartridge.
Summary of Contents for C911dn
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