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7.12
Troubleshooting
Problem
Possible Cause and Remedy
If faded areas, generally rounded, occur randomly on the
page:
• A single sheet of paper may be defective. Try reprinting
the job.
• The moisture content of the paper is uneven or the paper
has moist spots on its surface. Try a different kind or
brand of paper. See “Paper Type and Size” for faxing on
page 1.17 and “Selecting Print Media” for PC printing on
page 4.1.
• The paper lot is bad. The manufacturing processes can
cause some areas to reject toner. Try a different kind or
brand of paper.
• The toner cartridge may be defective. See “Vertical
repetitive defects” on page 7.13.
• If these steps do not correct the problems, contact a
service representative.
Dropouts
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If the amount of background toner shading becomes
unacceptable, the procedures below may help to clear the
condition:
• Change the paper to a lighter basis weight. See “Paper
Type and Size” for faxing on page 1.17 and “Selecting Print
Media” for PC printing on page 4.1.
• Check the printer’s environment; very dry (low humidity)
or high humidity (higher than 80 % RH) conditions can
increase the amount of background shading.
• Install a new toner cartridge.
• Adjust the shading setting. See “Adjusting Shading” on
page 6.2.
Gray background
• Clean the inside of the printer. See “Cleaning the Inside” on
page 6.4.
• Check the paper type and quality. See “Paper Type and Size”
for faxing on page 1.17 and “Selecting Print Media” for PC
printing on page 4.1.
• Try installing a new toner cartridge.
Toner smear
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