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Gray background If the amount of background shading becomes unacceptable, the
procedures below may fix the problem.
• Use lighter weight pages. See page 21.
• Check the machine’s environment. Very dry (low humidity) or humid
(higher than 80% RH) conditions can increase the amount of background
shading.
• Install a new toner cartridge. See page 65.
Toner smear • Clean the inside of the machine. See page 63.
• Check the paper type and quality. See page 21.
• Install a new toner cartridge. See page 65.
Repetitive defects If marks repeatedly appear on the printed side of the page at even intervals:
• The toner cartridge may be damaged. If a repetitive mark occurs on the
page, print a cleaning sheet several times to clean the cartridge. See
page 68.
After the printout, if you still have the same problems, install a new toner
cartridge. See page 65.
• 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 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 program or the printer
properties.
Misformed characters • If characters are improperly formed and producing hollow images, the
paper stock may be too slick. Try a different paper. See page 21.
• If characters are improperly formed and producing a wavy effect, the
scanner unit may need service. Contact a service representative.
Problem Solution
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