Electrophotographic apparatus having compensation for rest-run p

Details Electrophotographic apparatus having compensation for rest-run p Electrophotographic apparatus having compensation for rest-run p

1977-01-12

1978-08-08

Pellinen, A. D.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 69, G03G 2100

Patent

active

041053249

ABSTRACT:
Electrophotographic apparatus in which changes are effected in operative substations to compensate for variation in machine performance during the transition period between a rest condition and a steady state run condition. In one embodiment a decrease in exposure directly proportional to run time and increase in exposure directly proportional to rest time are effected by resistance capacitance circuits.

REFERENCES:
patent: 3449658 (1969-06-01), Robinson et al.
patent: 3575505 (1971-04-01), Parmigiani
patent: 3851144 (1974-11-01), Hutner
patent: 3892481 (1975-07-01), Schaefer et al.

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