Ricoh A229 Service Manual page 346

5.5 DRUM UNIT
5.5.1 DRUM UNIT REMOVAL AND DRUM REPLACEMENT
[E]
[A]
1. Take out the development unit. (Refer to Development Unit Removal.)
2. Lower the transfer belt unit.
3. Take out the drum unit by holding the knob [A].
NOTE: 1) Cover the drum unit with a sheet of paper to protect it from light
when the drum unit is left outside the machine for servicing.
2) Do not touch the drum surface with bare hands.
4. Disconnect the connector of the drum potential sensor [B].
5. Open the upper drum unit (2 screws [C]).
6. Replace the drum [D]. Then remove the drum protective sheet from the new
drum.
NOTE: If it is hard to completely set the drum unit in the machine because the
gear is disengaged, push in the drum unit while holding down the
cleaning blade release knob [E].
After installing a new drum, do the following SP modes: 2-001-1 (charge corona
voltage – reset to the defaults), then 2-962 (process control initialization).
SM
[B]
A229R550.WMF
[C]
5-35
DRUM UNIT
[D]
A229R551.WMF
A229