Paper Volume Detection - Ricoh FT8680 Service Manual

31 July 1995 PAPER FEED

11.7 PAPER VOLUME DETECTION

[A]
A171D655.img
Each tray uses a pulse generator [A] to determine the quantity of paper in the
tray. The amount of paper present is based on the number of pulses
generated between the time the tray starts moving up and the time the upper
limit sensor turns off.
2-75