Ricoh AC104, Сервисная документация

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TONER CARTRIDGE (AIO) SERVICE
B173 4-46 SM
Fault
Signs Cause & Check Solution
1. If light or dark
periodical black dots
occur, this is because
the developer rollers
are contaminated
with foreign
substance or paper
particles.
•
37.7mm interval :
Charged roller
•
75.5mm interval :
OPC cycle
1. In case of 1 –
Run OPC Cleaning
Mode Print 4-5 times
repeatedly to remove.
Especially check foreign
substance on the OPC
surface, then remove
them with a clean gauze
moistened with IPA
(Isopropyl Alcohol) not
to damage OPC if
necessary.
Never use usual
alcohol.
2. If white spots occur in
a black image at
intervals of 75 mm, or
black spots occur
elsewhere, the OPC
drum is damaged or
foreign substance is
stuck to the surface.
2. In case of 2 -
If they do not
disappeared by
running the OPC
Cleaning Mode Print
4-5 times.
•
at intervals of 37.7
mm – Replace the
AIO.
•
at intervals of 75 mm
– Remove foreign
substance.
• Broken image -
Replace the AIO.
White or Black
Spots •
Light or dark
black dots on
the image
occur
periodically.
•
White spots
occur in the
image
periodically.
3. If a black and white or
graphic image is
partially broken at
irregular intervals, the
transfer roller’s life
has been expired or
the transfer voltage is
abnormal.
3. In case of 3 -
Exchange the
transfer roller
because the life of
the transfer roller in
use has been
expired. (Check the
transfer voltage and
readjust if different.)