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Troubleshooting
SYMPTOMS
POSSIBLE CAUSES
STEPS TO TAKE
The image drum cartridge is
damaged.
Replace the image drum cartridge. Vertical lines
appear.
The toner is low. Open the top cover and tap the cartridge
a few times to evenly distribute any
remaining toner. If symptoms persist,
replace the toner cartridge.
When the interval is about
94mm (4in), the image drum
(the green tube) is damaged or
dirty.
Wipe it lightly with a soft cloth. Replace
the image drum cartridge when it is
damaged.
When the interval is about
42mm (1.5in), there may be
foreign particles in the image
drum cartridge.
Open/close the top cover, and print
again.
When the interval is about
87mm (3.5in), the fuser unit is
damaged.
Replace the fuser unit.
Horizontal Lines
and spots
appear
periodically.
The image drum cartridge has
been exposed to light.
Replace the image drum cartridge if the
problem is not resolved.
Paper contains static. Use paper stored in proper temperature
and humidity conditions.
Too thick paper is used. Use thinner paper.
White area of
paper is lightly
stained.
The toner is low. Open the top cover and tap the cartridge
a few times to evenly distribute any
remaining toner. If symptoms persist,
replace the toner cartridge.
Periphery of the
letters is
smudged.
The LED head is dirty. Wipe the LED head with a soft, lint-free
cloth.
The thickness and type of the
paper are incorrectly set.
Set the correct value of Media Type and
Media Weight in the Printer menu or set
one value thicker for Media Weight.
Toner comes off
when it is
rubbed.
Recycled paper is used. Set one value thicker for Media Weight in
the Printer menu.
Glossiness
is not
uniform.
The thickness and type of the
paper are incorrectly set.
Set the correct value of Media Type and
Media Weight in the Printer menu or set
one value lighter for Media Weight.
Dealing with unsatisfactory
copying
As well as the suggestions provided in “Dealing with unsatisfactory printing” on
page 163, ensure that the scanner unit glass is clean at all times. Refer to “...the
document glass” on page 149.