Ricoh A151 Field Service Manual page 263

5.3 PICK-UP ROLLER REPLACEMENT
[B]
1. Turn off the main switch.
2. Remove the feed-in unit. (See Feed-in Unit Removal.)
3. Remove the DF motor [A] (2 screws and 1 timing belt [B]).
4. Remove the pick-up roller [C] (2 E-rings and 1 bushing) from the shaft [D].
FSM 7-11
[D]
[C]
[A]
A151/A152