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The direction that the reverse roller [A] turns depends on the frictional
acting on it. The slip clutch applies a constant clockwise force (F1 ). When
there is a single sheet of paper being driven between the rollers, the force of
friction between the feed roller [B] and the paper (F2) is greater than
the reverse
roller turns counterclockwise.
If two or more sheets are fed between the rollers, the forward force on the
second sheet (F3), becomes less than
the two sheets is small. So
between
wise
and drives the
the reverse roller starts turning clock-
j
second sheet back to the cassette.
FI because the coefficient of friction
forces
F1. So,
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