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White Spots White spots appears on the page:
• The 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 "In
the multi-purpose tray" on page96) Contact
a service representative.
• The paper path may need cleaning.
Contact a service representative.
Vertical lines
If black vertical streaks appear on the page:
• The surface(drum part) of the imaging unit
inside the machine has probably been
scratched. Remove the imaging unit and
install a new one. (See "In the multi-
purpose tray" on page96)
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.
Color or Black
background
If the amount of background shading becomes
unacceptable:
• Change to a lighter weight paper. (See "In
the multi-purpose tray" on page96)
• Check the environmental conditions: very
dry conditions (low humidity) or a high level
of humidity (higher than 80% RH) can
increase the amount of background
shading.
• Remove the old imaging unit and then,
install a new one. (See "In the multi-
purpose tray" on page96)
Toner smear
• Clean the inside of the machine. Contact a
service representative.
• Check the paper type and quality. (See "In
the multi-purpose tray" on page96)
• Remove the imaging unit and then, install a
new one. (See "In the multi-purpose tray" on
page96)
Vertical repetitive
defects
If marks repeatedly appear on the printed side
of the page at even intervals:
• The imaging unit may be damaged. If a
repetitive mark occurs on the page, run a
cleaning sheet through several times to
clean the cartridge; contact a service
representative. After the printout, if you still
have the same problems, remove the
imaging unit and then, install a new one.
(See "In the multi-purpose tray" on page96)
• 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.
CONDITION SUGGESTED SOLUTIONS
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 in printer properties.
Misformed
characters
• If characters are improperly formed and
producing hollow images, the paper stock
may be too slick. Try different paper. (See
"In the multi-purpose tray" on page96)
• If characters are improperly formed and
producing a wavy effect, the scanner unit
may need service. Contact a service
representative.
Page skew
• Ensure that the paper is loaded properly.
• Check the paper type and quality. (See "In
the multi-purpose tray" on page96)
• Ensure that the paper or other material is
loaded correctly and the guides are not too
tight or too loose against the paper stack.
Curl or wave
• Ensure that the paper is loaded properly.
• Check the paper type and quality. Both high
temperature and humidity can cause paper
curl. (See "In the multi-purpose tray" on
page96)
• Turn the stack of paper over in the tray. Also
try rotating the paper 180° in the tray.
Wrinkles or creases
• Ensure that the paper is loaded properly.
• Check the paper type and quality. (See "In
the multi-purpose tray" on page96)
• Turn the stack of paper over in the tray. Also
try rotating the paper 180° in the tray.
CONDITION SUGGESTED SOLUTIONS
A