Troubleshooting_ 84
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, so the transfer roller may be dirty.
Clean the inside of your machine (See "Cleaning
the inside" on page 74).
• T
he paper path may need cleaning (See
"Cleaning the inside" on page 74).
Vertical lines
If black vertical streaks appear on the page:
• T
he surface (drum part) of the toner cartridge
inside the machine has probably been scratched.
Remove the toner cartridge and install a new one
(See "Replacing the toner cartridge" on page 89).
If white vertical streaks appear on the page:
• T
he surface of the LSU part inside the machine
may be dirty (See "Cleaning the inside" on
page 74).
Black background
If the amount of background shading becomes
unacceptable:
• C
hange to a lighter weight paper (See "Print
media specifications" on page 93).
• Check the environmental conditions: very dry
conditions or a high level of humidity (higher than
80% RH) can increase the amount of background
shading.
• R
emove the old toner cartridge and, install a new
one (See "Replacing the toner cartridge" on
page 89).
Toner smear
If toner smears on the page:
• C
lean the inside of the machine (See "Cleaning
the inside" on page 74).
• C
heck the paper type and quality (See "Print
media specifications" on page 93).
• R
emove the toner cartridge and then, install a
new one (See "Replacing the toner cartridge" on
page 89).
Vertical repetitive
de
fects
If marks repeatedly appear on the printed side of the
page at even intervals:
• The tone
r cartridge may be damaged. If you still
have the same problem, remove the toner
cartridge and, install a new one (See "Replacing
the toner cartridge" on page 89).
• Pa
rts 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.
CONDITION SUGGESTED SOLUTIONS
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 quality
through your software application or in Printing
Preferences (See "Opening printing
preferences" on page 55).
Toner particles are
a
round bold
characters or
pictures
The toner might not adhere properly to this type of
paper.
• Change the printer option and try again. Go to
the Printing Preferences, click the Paper tab,
and set the paper type to Recycled.
Misformed
cha
racters
• If characters are improperly formed and producing
hollow images, the paper stock may be too slick.
Try different paper (See "Print media
specifications" on page 93).
Page skew
AaBbC
AaBbC
AaBbC
AaBbC
AaBbCc
• Ensure that the paper is loaded properly.
• Che
ck the paper type and quality (See "Print
media specifications" on page 93).
• Ensure that the guides are not too tight or too
loose against the paper stack.
CONDITION SUGGESTED SOLUTIONS
Comments to this Manuals