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Care and Maintenance
170
Trouble
A single white spot
appears in
approximately the same
vertical place on the
page.
Large light spot(s)
appear randomly.
One or more dark
vertical lines appear on
the print in all colors.
Possible Cause
The color imaging unit
is damaged.
Fingerprint(s) on the
underside belt or
photosensitive belt
(inside) of the color
imaging unit.
The color imaging unit
is scratched.
The fuser is
damaged.
Corrective Action
Replace the color
imaging unit.
Print several pages
until the spots fade.
Replace the color
imaging unit; make
sure that the old color
imaging unit is not
exposed to light for
more than 45
seconds. If a new
color imaging unit
does not correct the
problem:
• Put the old color
imaging unit back
into the printer.
• Repack the new
color imaging unit.
Replace the fuser.
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