Photocopying – Projection printing and copying cameras – Copying both sides of original
Patent
1975-06-02
1976-09-14
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Copying both sides of original
355 8, 355 11, G03B 2732, G03B 2752
Patent
active
039804062
ABSTRACT:
A duplex copying machine is provided wherein an original document, having images on both sides, is located between a transparent rotatable drum and conveyor belts and is automatically transported thereby to a first image station to expose to a photoconductor, by lamps external to the drum, the side of the document engaged by the conveyor belts. Thereafter, the document is automatically transported to a second image station to expose to the photoconductor, by lamps surrounded by the drum, the side of the document engaged by the drum.
REFERENCES:
patent: 3227444 (1966-01-01), Egan
patent: 3844653 (1974-10-01), Kelly
Raizes Sheldon F.
Wintercorn Richard A.
Xerox Corporation
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