Panasonic KX-P8420 - Manual (Page 170)

170
Care and Maintenance
A single white spot
appears in
approximately the same
vertical place on the
page. The color imaging unit
is damaged. Replace the color
imaging unit.
Large light spot(s)
appear randomly. Fingerprint(s) on the
underside belt or
photosensitive belt
(inside) of the color
imaging unit. Print several pages
until the spots fade.
One or more dark
vertical lines appear on
the print in all colors. The color imaging unit
is scratched. 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.
The fuser is
damaged. Replace the fuser.
Trouble Possible Cause Corrective Action