Jam detection apparatus and method in a photocopier

Details Jam detection apparatus and method in a photocopier Jam detection apparatus and method in a photocopier

1982-08-09

1984-01-03

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 14TR, 355 77, G03G 1500

Patent

active

044239491

ABSTRACT:
A jam detector circuit for use in a photocopier employs feedback and visual indication circuitry for providing a stable and easily adjusted detector. Feedback is provided to desensitize the circuit to sensing device operating parameters which vary according to and within manufacturing specifications. The visual indication circuitry allows a predetermined range of signal change to be defined thereby enabling easy "set-up" of the circuit without the need of electrical metering apparatus.

REFERENCES:
patent: 3360652 (1967-12-01), Bernous
patent: 3982832 (1976-09-01), Bendall et al.
patent: 4239372 (1980-12-01), Iwai

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