Troubleshooting
Image Formation Troubleshooting
a
●✌
Table 7-21 Vertical White Stripes
POSSIBLE CAUSE
11. Toner cartridge is nearly empty. This
●
can cause uneven toner ciistribution.
—
2. Toner cartridge has been exposed to
too much light.
3. Contaminated Beam-to-Drum Mirror.
A dirty mirror will reduce the amount of
light that reaches the toner cartridge’s
photosensitive drum,
NOTE: An excessively dusty environ-
ment can allow dust particles to be
drawn into the printer, contaminating the
Beam-to-Drum Mirror.
4, Foreign objects in beam path. Any for-
eign objects will block the light from de-
veloping an image on the Photosensitive
drum.
a
RECOMMENDED ACTION
Remove the toner cartridge and shake it
gently. The cartridge will soon require
replacement,
Store the toner cartridge in a darkened
environment forseveral days. This may
restore the photosensitive potential.
Inspect themirror. Use filtered,
compressed air to clean. If still dirty,
clean it carefully using lens cleaner and
a lint free cloth or swab.
NOTE: If removing the mirror, note its
alignment position relative to the mark on
the printer chassis before loosening the
screw on the right end. If the mirror
needs adjustment, refer to the procedure
under “Beam-to-Drum Mirror Adjustment”
later in this chapter.
Remove the toner cartridge and check
the laser beam printer slot for foreign
objects. Replace the toner cartridge if it
is damaged.
Remove the Printer Cover and inspect
the path from the Laser/Scanner to the
mirror, looking for foreign objects in the
beam path. Replace the Laser/Scanner
Assembly if the lens is scratched.
7-27
To Next Page
Loading...