Panasonic KX-P8410 Operating Instructions Manual page 120

Care and Maintenance
120
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 imaging unit is
damaged.
Fingerprint(s) on the
underside belt or
photosensitive belt
(inside) of the imaging
unit.
The imaging unit is
scratched.
The fuser is damaged.
Corrective Action
Replace the imaging unit.
Print several pages until
the spots fade.
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:
BPut the old imaging
unit back into the
printer.
BRepack the new
imaging unit.
Replace the fuser.