Specifications

8. MISFEED DETECTION

In addition to being used for the exit roller and bin drive timing, the paper

sensor checks for a misfeed in the sorter. The copier CPU checks whether

the paper sensor is actuated within 942 pulses (3.8 seconds) after the

registration clutch turns on (at 2,000 pulses). (J1: Paper Sensor ON Check)

Also, the copier CPU starts a timing cycle when the paper sensor is actuated.

Then, at 2.75 (A4 sidewise) or 2.80 (Letter sidewise) seconds, the CPU

checks whether the copy paper has passed through the paper sensor. (J2:

Paper Sensor OFF Check)

In misfeed condition, the "Check Paper Path" and "Misfeed Location"

indicators lights and copier operation is inhibited. To recover the sorter from

the misfeed condition, the sorter has to be slide away from the copier, then,

after misfed paper removal, returned to its original position.

Paper Sensor

2.75 sec ((A4 sidewise)

2.80 sec (LT sidewise)

2.75 sec (A4 sidewise)

2.80 sec (LT sidewise)

J1 J2 J1 J2

2942

1 December 1990

9-11