Ricoh FT6645 Manual page 273

DRUM UNIT
4. DRUM UNIT
4.1 DRUM UNIT REMOVAL AND OPC DRUM REPLACEMENT
[D]
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: Close the protective shutter [B] to protect the OPC drum from
light when the drum unit is left outside the machine for servicing.
4. Open the upper drum unit (2 screws [C]).
5. Replace the OPC drum. Then remove the drum protective sheet from the
new drum.
NOTE: When returning the drum unit to the copier, do not forget to open
the protective shutter [B].
If it is hard to completely set the drum unit in the machine
because the gear is disengaged, then push in the drum unit while
holding down the cleaning blade release knob [D].
[A]
5-48
[B]
[C]
23 April 1993