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Troubleshooting_ 12
Toner specks • The paper may not meet specification, for
example, the paper may be too moist or rough
(See "Selecting print media" on page 2).
• T
he paper path may need cleaning (See
"Cleaning the inside" on page 1).
Dropouts
If faded areas, generally rounded, occur randomly
on the page:
• A sing
le sheet of paper may be defective. Try
reprinting the job.
• The moisture content of the paper is uneven
or the paper has moist spots on its surface.
Try a different brand of paper (See "Selecting
print media" on page 2).
• T
he paper lot is bad. The manufacturing
processes can cause some areas to reject
toner. Try a different kind or brand of paper.
• C
hange the printer option and try again. Go to
Printing Preferences, click Paper tab, and
set type to Thick (See "Opening printing
preferences" on page 2).
If these steps do not correct the
problem, contact
a service representative.
White Spots
If white spots appear on the page:
• T
he paper is too rough and a lot of dirt from a
paper falls to the inner devices within the
machine, which means the transfer belt may
be dirty. Clean the inside of your machine.
Contact a service representative.
• T
he paper path may need cleaning. Contact a
service representative.
Vertical lines
If black vertical streaks appear on the page:
• T
he drum inside the toner cartridge has
probably been scratched. Remove the toner
cartridge and install a new one (See
"Replacing the toner cartridge" on page 2).
If white vertical streaks appear on the page:
• The surface of the LSU part inside the
machine may be dirty. Clean the LSU, contact
a service representative.
Condition Suggested Solutions
Black background If the amount of background shading becomes
unacceptable:
• Ch
ange to a lighter weight paper (See
"Selecting print media" on page 2).
• Check the environmental conditions: very dry
(low humidity) or high humidity (higher than
80% RH) conditions can increase the amount
of background shading.
• Re
move the old toner cartridge and, install a
new one (See "Replacing the toner cartridge"
on page 2).
Toner smear
• Clean the inside of the machine (See "Cleaning
the inside" on page 1).
• Che
ck the paper type and quality (See
"Selecting print media" on page 2).
• Remove the tone
r cartridge and then, install a
new one (See "Replacing the toner cartridge"
on page 2).
Vertical repetitive
defe
cts
If marks repeatedly appear on the printed side of
the page at even intervals:
• T
he toner cartridge may be damaged. If a
repetitive mark occurs on the page, print a
cleaning sheet several times to clean the
cartridge. 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 2).
• 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.
• T
he fusing assembly may be damaged.
Contact a service representative.
Background
scatter
Background scatter results from bits of toner
randomly distributed on the printed page.
• T
he paper may be too damp. Try printing with
a fresh ream of paper. Do not open packages
of paper until necessary so that the paper
does not absorb too much moisture.
• If ba
ckground 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.
Condition Suggested Solutions
A