Table of Contents
2) Vertical White Line
Description : White vertical voids in the image.
1. Foreign matter stuck onto the
toner particles between the toner
cartridge roller and blade. (In case the life of the
toner cartridge has been expired, white
3. It may occur when Burr and
foreign substances are on the window
voids occur periodically at the
substances are on the OPC Drum.
Service Manual
ML-331x/371x series
CÓPIA NÃO CONTROLADA
4. Alignment and Troubleshooting
window of internal lenses
of LSU mirror.
2. Foreign matter or
lines or light image occur in
front of the image.)
of the toner cartridge frame.
4. If the fuser is defective,
top of a black image.
5. It may occur when foreign
CÓPIA NÃO CONTROLADA
Foreign matter stuck onto the
window : Clean the LSU window
with recommended cleaner(IPA)
Clean the window with a clean
cotton swab.
Replace the toner cartridge.
No 3. : Remove the foreign matter
and burr of the exposure window.
(toner cartridge)
No. 4. : Open the front cover and
check ribs that corresponds to the
position of the voids. Remove if
found.
If the problems are not solved,
replace the toner cartridge.
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Troubleshooting
