Ricoh SAVIN D0AP Service Manual page 333

9.
Remove the gear unit [A].
When removing the gear unit, be careful not to injure the belt linked to the front cover.
When you install the gear unit, confirm that the two pegs of the joint lever [A] are inserted
correctly into the rings of the toner supply/collection drive link.
SM 4-129 D0AP/D0C4/D0C5/D0C6/M0BQ/M0D1
Drive Units