30 November 1990
5. SERVICE REMARKS
WARNING: Make sure that the machine is unplugged before
servicing the copier, because the drum heater,
the cleaning heater, and the anticondensation
heater are live even when the
main switch is off.
5.1 HANDLING THE DRUM
1. Never touch the drum surface with bare hands.
2. Store the drum in a cool and dry place.
3. Always wear gloves when cleaning the drum.Do not throw away cotton
used for cleaning. Bring it back to the service depot for disposal accord-
ing to local regulations.
4. Prime the drum with setting powder when the cleaning blade is replaced.
5. Never expose the drum to light for a long time.
6. Always keep the drum in the protective sleeve when inserting or pulling
the drum out of the copier.
7. Drum conditioning is necessary when a new drum is installed. In addi-
tion, it should be done at the following times:
a) When image density is reduced due to overexposure of the drum.
b) After cleaning the drum.
c) When the drum is lightly scratched.
8. Before sliding in or out the drum, remove the development unit and the
cleaning unit to avoid damage to the drum. When pulling out the cleaning
unit, press the drum shaft slightly to the right, so that the pick-off pawls do
not scratch the drum surface.
9. Return used drums to the distributor according to standard procedure.
5.2 CHARGE CORONA
1. Do not use emery paper to clean the corona wire; this abrades the wire
coating. Use a dry, clean cloth to clean the corona wire.
2. Do not touch the corona wire with bare hands.
4-31 |
ACEC
RICOH
