Samsung SF-555P User Manual page 157

Problem
Dropouts
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Gray background
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Toner smear
Troubleshooting
7.12
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Possible Cause and Remedy
If faded areas, generally rounded, occur randomly on the
page:
• A single sheet of paper may be defective. Try reprinting
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the job.
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• The moisture content of the paper is uneven or the paper
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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
• If these steps do not correct the problems, contact a
service representative.
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
Media" for PC printing on
• 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.
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• Adjust the shading setting. See "Adjusting Shading" on
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page 6.2.
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• 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
printing on page
• Try installing a new toner cartridge.
page 7.13.
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page 1.17
page 4.1.
and "Selecting Print Media" for PC
4.1.
and "Selecting Print