127
Care and Maintenance
Fingerprint(s) on the
underside belt or
photosensitive belt
(inside) of the imaging
unit.
Print several pages until
the spots fade.
Trouble
Replace the imaging unit.
The imaging unit is
damaged.
On the Maintenance
Page, a single white spot
appears in
approximately the same
vertical place on the
page.
Corrective Action
Possible Cause
On the Maintenance
Page, large light spot(s)
appear randomly.
The imaging unit is
scratched.
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:
B
Put the old imaging
unit back into the
printer.
B
Repack the new
imaging unit.
On the Maintenance
Page, one or more dark
vertical lines appear on
the print in all colors.
The fuser is damaged.
Replace the fuser.
