7. MISFEED DETECTION
In addition to being used for the exit roller drive timing, the paper sensor
checks for misfeeds in the sorter.
J1 - Paper Sensor On Check:
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).
J2 - Paper Sensor Off Check:
The copier CPU starts a timing cycle when
the paper sensor is actuated. Then, at 2.75 (A4 sideways) or 2.80 (Letter
sideways) seconds, the CPU checks whether the copy paper has passed
through the paper sensor.
In misfeed condition, the "Check Paper Path" and "Misfeed Location"
indicators light and copier operation is disabled. To recover the sorter from
the misfeed condition, the sorter has to be slid away from the copier, the
misfed paper removed, and the sorter returned to its original position.
A156/A160/A162 9-8 STM
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