Exposure system for electrophotographic copying apparatus

Details Exposure system for electrophotographic copying apparatus Exposure system for electrophotographic copying apparatus

1974-05-31

1976-08-31

Peters, Jr., Joseph F.

Photocopying

Projection printing and copying cameras

355 69, G03B 2732

Patent

active

039777812

ABSTRACT:
An electrophotographic copying apparatus wherein the original is placed face down onto a stationary transparent holder which is located above a reciprocating carriage for a lens element. The latter images the original onto a light receiving surface which travels along a straight path while the carriage moves in the same direction as the light receiving surface. The carriage can be moved by an eccentric drive, by a wiper which is attached to an endless belt or chain, or by a cam and follower assembly. The original is illuminated by flash lamps which are fired automatically while the carriage moves in the same direction as the light receiving surface.

REFERENCES:
patent: 3612679 (1971-10-01), Punnett
patent: 3614222 (1971-10-01), Post
patent: 3687545 (1972-08-01), Moorhusen
patent: 3724944 (1973-04-01), Sugita et al.
patent: 3754822 (1973-08-01), Melrose
patent: 3788740 (1974-01-01), Shogren
patent: 3815991 (1974-06-01), Janssen

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