Ricoh C231 Service Manual page 214

DRUM AND DRIVE SECTION
[I]
[G]
[H]
C231R574.WMF
7. Remove the drum rear plate [G] (2 hexagon screws).
8. Remove the drum rear stopper [H] (1 hexagon screw).
9. Remove the drum rear flange [I].
NOTE: If the ink detection off mode has been selected with SP 140, do not forget
to return it to the default (detection on).
C231/C237/C238 SM
6-40