Ricoh C211 Service Manual page 472

6. Second Feed Roller Mechanism
[G]
The lower second feed roller [C] is driven by the sector gear [A] and the gear [B]. When
the paper feed solenoid [D] turns on, the link [F] combined with the paper feed roller
sector stopper [E] is pulled and the second feed roller sector stopper [G] turns
counterclockwise.
When the bearing of the sector gear [A] comes to the top of the lower second feed roller
cam [H], the stopper [G] is released from the sector gear [A] as a clearance is formed
between the pin of the sector gear and the stopper. Therefore, the bearing of the sector
gear [A] moves along the second feed roller cam face.
When turning the gear [B] counterclockwise, its rotation is not transmitted to the lower
second feed roller due to the one-way clutch bearing which is press-fit into the gear [B].
When the bearing of the sector gear [A] moves up from the bottom of the second feed
roller cam [H], the sector gear [A] turns counterclockwise and gear [B] turns clockwise.
As the rotation of the gear [B] is transmitted to the lower second feed roller, the lower
second feed roller turns clockwise to feed the paper to the drum section.
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