129
Care and Maintenance
Trouble
Corrective Action
Possible Cause
Reinsert the imaging unit
to correct the contact for
the main charge grid.
The entire page prints in
black, including the
borders.
Bad electrical contact for
the main charge grid.
The main charge grid is
broken.
Replace the imaging unit.
The transfer unit is worn
out.
Replace the transfer unit.
Toner spots appear on
the back of the media.
Dark and wavy vertical
streaks appear in all
colors.
Replace the imaging unit.
The main charge grid is
dirty.
The page prints in black
in the image area only.
(The borders are clear.)
Either the image
processor board or
engine control board is
not functioning properly.
Turn the printer off and
back on again. If the
problem persists, call for
service on your printer.