Transfer Belt Unit; Laser Unit; Charge Roller; Development - Ricoh G035 Service Manual

4.1.2 TRANSFER BELT UNIT

1. Replace the transfer belt every PM cycle (150 K sheets printed) to avoid bad
effects on the drum.
2. Never touch the transfer belt surface with bare hands.
3. Take care not to scratch the transfer belt as the surface is easily damaged.
4. Before installing the new transfer belt, clean all the rollers and the inner part of
the transfer belt with a dry cloth to prevent the belt from slipping.

4.1.3 LASER UNIT

1. Do not loosen the screws that secure the LD drive board to the laser diode
casing. Doing so would throw the LD unit out of adjustment.
2. Do not adjust the variable resistors on the LD unit, as they are adjusted in the
factory.
3. The polygon mirror and F-theta lenses are very sensitive to dust. Do not open
the optical housing unit.
4. Do not touch the glass surface of the polygon mirror motor unit with bare
hands.
5. After replacing the LD unit, do the laser beam pitch adjustment. Otherwise, an
SC condition will be generated.

4.1.4 CHARGE ROLLER

1. Do not touch the charge roller with bare hands. Oil stains from fingers may
cause uneven image density on copies.
2. Clean the charge roller with alcohol and water, then with a dry cloth

4.1.5 DEVELOPMENT

1. Be careful not to nick or scratch the development roller.
2. Place the development unit on a sheet of paper after removing it from the
copier.
3. Never disassemble the development roller assembly. The position of the doctor
plate is set with special tools and instruments at the factory to ensure the
proper gap between the doctor blade and the development roller.
4. Clean the drive gears after removing used developer.
5. Dispose of used developer in accordance with local regulations.
G035 4-2
GENERAL CAUTIONS
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