TM 5-6675-324-14
Jam detection is programmed in the memory of the microcomputer. The time when a
piece of paper starts through the copier-is noted by the microcomputer. After a set
period, the sheet should reach the discharge port and open reed switch RS5 which
generates PDP1 = 1. If a signal is not generated, a jam has occurred. A jam is
identified by flashing JAM indicator LED602 on the control panel. For 22 pulses
after the occurrence of a jam, the main motor, secondary corona, and halogen lamp
are kept operating in order to remove the primary charge on the photosensitive drum
(one-eighth rotation of the drum).
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