Precautions; General; Aio; Transfer Roller - Ricoh M052 Service Manual

4. REPLACEMENT AND ADJUSTMENT

4.1 PRECAUTIONS

4.1.1 GENERAL

Turn off the main power switch and unplug the machine before starting replacement.
Before turning off the main power switch, check that no mechanical component is operating.
Mechanical components may stop out of their home positions if you turn off the main power
switch while they are operating. The component may be damaged if you try to remove it when it
is not in the home position.

AIO

The AIO consists of the OPC drum, charge roller, development unit, cleaning components and
toner tank. Observe the following precautions when handling the AIO.
1. Never touch the drum surface with bare hands. If the drum surface is dirty or if you have
accidentally touched it, wipe it with a dry cloth, or clean it with wet cotton and then wipe it
dry with a cloth.
2. Never use alcohol to clean the drum. Alcohol will dissolve the drum surface.
3. Store the AIO in a cool dry place.
4. Do not expose the drum to corrosive gases (ammonia, etc.).
5. Do not shake a used AIO, as this may cause toner to spill out.
6. Dispose of used AIO components in accordance with local regulations.

Transfer Roller

1. Never touch the surface of the transfer roller with bare hands.
2. Be careful not to scratch the transfer roller, as the surface is easily damaged.

Scanner Unit

1. Use alcohol or glass cleaner to clean the exposure and scanning glass. This will reduce the
static charge on the glass.
2. Use a blower brush or a water-moistened cotton pad to clean the mirrors and lenses.
3. Make sure to not bend or crease the exposure lamp's ribbon cable.
4. Do not disassemble the lens unit. This will cause the lens and copy image to get out of
focus.
5. Do not turn any of the LED positioning screws. This will put the LED out of position.
SM 4-1
Precautions
M052/M053/M054