Operation Manual

Troubleshooting > 75
D EALING WITH UNSATISFACTORY PRINTING
SYMPTOMS POSSIBLE CAUSES STEPS TO TAKE
Vertical white lines can
be seen on the printed
page.
The LED head is dirty. Wipe the LED head with a soft,
lin
t-free cloth.
The toner is low. Open output tray and tap the
ca
rtri
dge a few times to evenly
distribute any remaining toner. If
symptoms persist, replace the
toner cartridge.
Foreign materials may be
p
res
ent in the image drum.
Replace the image drum
cartridge.
Light-shielding film of the
im
age
drum cartridge is dirty.
Wipe the film with a soft, lint-
free cloth.
Printed images are
fa
din
g vertically.
The LED head is dirty. Wipe the LED head with a soft,
lint-free cloth.
The toner is low. Open output tray and tap the
ca
rtri
dge a few times to evenly
distribute any remaining toner. If
symptoms persist, replace the
toner cartridge.
The paper is not suitable for
the
pri
nter unit.
Use recommended paper.
Printing is light. The toner cartridge is not
properly
seated.
Reinstall the toner cartridge.
The toner is low. Open output tray and tap the
cartri
dge a few times to evenly
distribute any remaining toner. If
symptoms persist, replace the
toner cartridge.
The paper is moist. Use paper stored in proper
te
mpe
rature and humidity
conditions.
The paper is not suitable for
the
pri
nter unit.
Use recommended paper.
Thickness and type of paper
are inap
propriate.
Set the correct value of media
type and media weight in the
Media menu or set one value
thicker for media weight.
Recycled paper is being used. Set one value thicker for media
we
ight in
the Media menu.
Partially faded images.
Wh
ite spot
s and lines
appear in solid
printing.
Paper is moist or dry. Use paper stored in proper
te
mperature and humidity
conditions.
Vertical lines appear. The image drum cartridge is
damage
d.
Replace the image drum
cartridge.
The toner is low. Open output tray and tap the
ca
rtri
dge a few times to evenly
distribute any remaining toner. If
symptoms persist, replace the
toner cartridge.