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Printing quality problems
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6. Troubleshooting
Vertical repetitive defects If marks repeatedly appear on the printed side of the page at even intervals:
• The toner cartridge may be damaged. If you still have the same problem, remove the toner cartridge and, install
a new one.
• 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.
• The fusing assembly may be damaged. Contact a service representative.
Background scatter Background scatter results from bits of toner randomly distributed on the printed page.
• The paper may be too damp. Try printing with a different batch of paper. Do not open packages of paper until
necessary so that the paper does not absorb too much moisture.
• If background scatter occurs on an envelope, change the printing layout to avoid printing over areas that have
overlapping seams on the reverse side. Printing on seams can cause problems.
• If background scatter covers the entire surface area of a printed page, adjust the print resolution through your
software application or in Printing Preferences. Ensure the correct paper type is selected. For example: If
Thicker Paper is selected, but Plain Paper actually used, an overcharging can occur causing this copy quality
problem.
Toner particles are around
bold characters or pictures
The toner might not adhere properly to this type of paper.
• Change the printer option and try again. Go to Printing Preferences, click the Paper tab, and set the paper type
to Recycled.
• Ensure the correct paper type is selected. For example: If Thicker Paper is selected, but Plain Paper actually used,
an overcharging can occur causing this copy quality problem.
Condition Suggested solutions
A