Solving Problems with Printing Quality 75

Image is
too light;
there is
low image
density
(contin-
ued).
Image darkness
(Auto-Image Density Con-
trol [AIDC]) sensor is dirty.
Open the front cover . Lift up the transfer
belt release lever to the 12 o’clock posi-
tion. Next, return the lever to the 3
o’clock position. Repeat this operation
several times. (This cleans the surface
of the image darkness sensor.)
The print
contains
light or
whited out
areas.
Media may be moist. Remove the moist media and replace it
with new, dry media.
Humidity may be too high. Adjust the humidity in the paper storage
area.
The fuser unit may be
defective. Check the fuser unit for damage. If nec-
essary, replace it.
The OPC drum cartridge is
damaged. Remove the OPC drum cartridge and
check for damage. If necessary , replace
the entire drum kit.
The transfer roller unit is
misinstalled. Reset the transfer roller unit.
Horizon-
tal white
lines
appear in
image.
One or more of the toner
cartridges is damaged. Remove the toner cartridge and check
for damage. If necessary, replace it.
The OPC drum cartridge is
damaged. Remove the OPC drum cartridge and
check for damage. If necessary , replace
the entire drum kit.
The transfer unit is misin-
stalled. Make sure that the transfer unit was
correctly installed.
The transfer roller is dam-
aged. Replace the transfer roller.
Printouts
seem
faded on
one side.
The printer is not
on a level enough surface. Level the printer (not exceeding 1.5°
slant at any point around the machine).
Symptom Cause Solution

ABCDE

ABCD
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ABCD
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ABCD
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