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6.15
Troubleshooting
Dropouts 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. See “Print Media”
on page A.7.
• The paper lot is bad. The manufacturing processes can
cause some areas to reject toner. Try a different kind
or brand of paper.
• The laser printer cartridge may be defective. See
“Vertical repetitive defects” on page 6.16.
• If these steps do not correct the problems, contact a
service representative.
Gray background
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 “Print
Media” on page page A.7.
• 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 laser printer cartridge.
• Adjust the shading setting. See “Adjusting Shading” on
page 5.4.
Toner smear
• Clean the inside of the printer. See “Cleaning the
Inside” on page 5.7.
• Check the paper type and quality. See “Print Media” on
page A.7.
• Try installing a new laser printer cartridge.
Problem Possible Cause and Remedy
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