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Troubleshooting
9.23
9
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 at intervals of 75.4 mm, print a
cleaning sheet several times to clean the cartridge; see
“Cleaning the Drum” on page 8.10. 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 8.8.
• 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.
• If a repetitive mark occurs on the page at intervals of
77.8 mm, the fuser may be damaged. Contact a service
representative.
• If a repetitive mark occurs on the page at intervals of 47.1
mm, the transfer roller 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 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 E.6.
• If characters are improperly formed and producing a wavy
effect, the LSV may need service. For service, contact a
service representative.
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