Ricoh FT4460 Service Manual page 299

5. Remove the drum knob [A] and the bearing [B] and install them with the
screw [C] on the new OPC drum. Do not remove the protective sheet
from the new drum.
6. Set the OPC drum in the unit and put the bearing holder [D] back in
place. Tighten the screws.
NOTE: a) When setting the drum in the unit, be careful not to strike it
against the rail.
b) Do not bend the bearing holder. Make sure the bearing holder is
in contact with the bearing [B], as they are both used to ground
the unit. If they are not in contact, solid black copies may occur.
c) Do not touch the drum surface.
7. Set the drum unit in the machine and remove the drum protective sheet.
8. Reinstall the other units around the drum unit.
5-83
28 February 1989