Ricoh C211 Service Manual page 449

[D]
[c]
2. Master Clamper Opening Mechanism
[
[F]
\
[E]
After the master eject process is finished, the interruptor [B] references the first drum
position sensor
[H],
the main motor turns on, and the drum starts rotating (30 rpm) in
the reverse direction.
When the drum turns 160 degrees past the actuation position of the second drum posi-
tion sensor [A], the cam [D] is moved to the drum's side as the master feed clamper
solenoid [C] turns on.
When the drum turns an additional 60 degrees in the reverse direction, the sector gear
[E] runs along the cam [D] and the gear [F] turns counterclockwise to open the
clamper [G]. At the same time, the drum stops and the clamper remains open to
clamp the master leading edge.
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