Misfeed Prevention - Ricoh FT5540 Service Manual

5. MISFEED PREVENTION

The front side of the friction roller [A] is attached to the misfeed prevention lever [B] via a
one-way clutch.
When the leading edge of an original [C] first contacts the feed [D] and friction rollers, the
friction roller is stationary. As the leading edge is fed between these rollers, the friction roller
rotates counterclockwise a few degrees to help feed thick originals. After the friction roller has
rotated a few degrees, the misfeed prevention lever contacts the stopper plate [E] and the
friction roller stops rotating. At this point, the separation mechanism will eliminate double feed.
When the trailing edge of the original passes the friction roller, the spring [F] returns the lever
to its original position without rotating the friction roller shaft.
8-7
31 August 1989