Printing quality problems
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5. Troubleshooting
Black background
If the amount of background shading becomes unacceptable:
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Change to a lighter weight paper.
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Check the environmental conditions: very dry conditions or a high level of humidity (higher than 80% RH) can increase the amount
of background shading.
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Remove the old toner cartridge and install a new one.
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Thoroughly redistribute the toner (see "Redistributing toner" on page 48).
Toner smear
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Clean the inside of the machine.
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Check the paper type and quality.
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Remove the toner cartridge and install a new one.
Vertical repetitive defects
If marks repeatedly appear on the printed side of the page at even intervals:
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The toner cartridge may be damaged. If you still have the same problem, remove the toner cartridge and, install a new one.
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Parts of the machine may have toner on them. If the defects occur on the back of the page, the problem will likely correct itself after
a few more pages.
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The fusing assembly may be damaged. Contact a service representative.
Condition
Suggested Solutions