T
ROUBLESHOOTING
8.16
Vertical 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 “Cleaning the Drum” on page 7.9.
After the printout, if you still have the same problems,
remove the toner cartridge and install a new one. See
“Replacing the Toner Cartridge” on page 7.8.
• 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 application 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 “Paper Specifications” on page 9.9.
• If characters are improperly formed and producing a wavy
effect, the scanner unit may need service. For service,
contact a service representative.
Page skew
• Ensure that the paper is loaded properly.
• Check the paper type and quality. See “Paper Specifications”
on page 9.9.
• Ensure that the paper or other material is loaded correctly
and the guides are not too tight or too loose against the
paper stack.
Condition Suggested solutions
AaBbCc
AaBbCc
AaBbCc
AaBbCc
AaBbCc
A
AaBbCc
AaBbCc
AaBbCc
AaBbCc
AaBbCc