Ricoh C211 Service Manual page 468

2. Paper Feed Roller/Upper Separation Roller Mechanism
[J]
\ Y /
n —
[F]
/
LLJ
[
"c]
[A]
The sector gear [F], located on the non-operation side, rotates the paper feed roller [G]
and the upper separation roller [K]. When the paper feed solenoid [A] turns on, the link
[B] is pulled and the sector stopper [C] turns counterclockwise. This is because the sec-
tor gear lock is released when the cam roller [E] is positioned on the top of the paper
feed roller cam [D]. Then, the cam roller [E] of the sector gear moves along the cam face
of the paper feed roller cam [D].
When moving the cam roller [E] from the bottom to the top of the paper feed roller cam
[D], the sector gear [F] turns clockwise and the gear [H] is turned counterclockwise. The
rotation of the gear [H] is transmitted to the upper separation roller shaft [J] by the one-
way clutch inside the gear [H], and the upper separation roller [K] turns counterclock-
wise.
At the same time, the pulley [L] mounted on the upper separation roller shaft [J] turns,
and the belt [1] rotates the paper feed roller [G] counterclockwise to feed the printing
paper.
When the cam roller [E] moves from the top to the bottom of the paper feed roller cam
[D], the sector gear [F] turns counterclockwise and the gear [H] is turned clockwise.
However, due to the one-way clutch inside the gear [H], the upper separation roller [K]
and the paper feed roller [G] do not turn.
2-55
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