26
Corrective ActionTrouble Possible Cause
Store media in the original, dust-
free package in the same
environmental conditions as the
printer.
Paper doesn’t match the
environmental conditions, or it
has too much moisture.
Try fresh paper, or another type of
paper.
On the Test Print, halftone area
has areas of weak color.
The toner cartridge is almost
depleted and is not properly
applying toner.
Replace the color toner cartridge.
The toner is almost depleted.
On the Test Print, a single color has
a sharp, dark or light vertical streak.
Replace the color toner cartridge soon
The color density is set
incorrectly in the printer panel.
A single color appears faded.
Adjust the color density (see page 21)
The photosensitive belt inside the
color imaging unit is scratched. Replace the color imaging unit.On the Test Print, straight, thin
light vertical line in colors.
Replace the color imaging unit.
The color imaging unit is damaged.
On the Test Print, a single white
spot appears in approximately the
same vertical place on the page.
Fingerprint(s) on the underside
belt or photosensitive belt
(inside) of the color imaging unit.
Print several pages until the spots
fade.
On the Test Print, large light
spot(s) appear randomly.