Side To Side Movement - Ricoh FT4430 Service Manual

16 April '88

2. Side to Side Movement

The pick-off pawls [A] do not always contact the drum in the same place but
instead move slightly to the side on each copy cycle.
The pick-off pawl shaft [B] and the cam rider [C] are joined by a one-way
bearing [D]. Each time the pick-off pawl solenoid turns on, the one-way
bearing causes the cam rider to turn together with the pick-off pawl shaft. As
the cam rider turns, it and the pawl shaft are forced to move laterally by a
cam. However, when the pawl shaft rotates the pawls away from the drum the
cam. rider does not turn.
Pawl lateral movement is 0.1 to 0.2 millimeter per copy cycle. After the pick-off
pawls move about 8 millimeters, the cam rider passes the "step" of the cam
and the pawl shaft is returned to its start position by the pawl shaft spring.
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