Kyocera FS-5800C User Manual page 22

Care and Maintenance
90
Trouble
One or more dark
vertical lines appear on
the print in all colours.
A piece of the printed
image is missing and
reappears out of place,
approximately 129 mm
(5") down the page.
The surface of the
printed image appears to
have vertical scratches
(visible by holding the
print at an angle and
observing the "shine" of
the image).
At first, the scratches
appear only on the
printed image; eventual-
ly, dark vertical scratch-
es appear on the unprint-
ed portion of the page.
Media frequently wraps
around the fuser.
Light vertical streaks
appear in all colours.
Possible Cause
The imaging unit is
scratched.
The fuser is damaged.
The fuser's internal roller is
not being consistently oiled.
or
The fuser's internal roller is
contaminated with toner
particles
The fuser is near its useful
life.
The oil supply roll has
reached its useful life.
The main charge grid is
dirty.
Corrective Action
Replace the imaging unit;
make sure that the old
imaging unit is not exposed
to light for more than 45
seconds.
If a new imaging unit does
not correct the problem:
• Put the old imaging unit
back into the printer.
• Repack the new imaging
unit.
Replace the fuser.
Print 5-10 pages of blank
pages to clean the roller.
If you still see the problem:
Replace the oil supply roll.
If you still see the problem:
Replace the fuser.
Replace the fuser (depending
on your quality needs, you
can continue to print until
the dark vertical lines
appear).
Replace the oil supply roll.
Replace the imaging unit.