Apparatus for preparing electrophotographic microfilm

Details Apparatus for preparing electrophotographic microfilm Apparatus for preparing electrophotographic microfilm

1973-12-21

1976-06-22

Gonzales, John

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

G03G 1510

Patent

active

039648281

ABSTRACT:
An electrophotographic process and a system for preparing microfilm is provided in which use is made of a roll film including a photosensitive layer a thin film of organic photoconductive material on a film of polyester. A portion of the film is taken out of the roll and is conveyed to and stationarily held in a processing position where the film plane is vertical. A movable unit including a charger, an exposure window and a vessel of developing solution is moved parallel to the photosensitive surface which is thus held in place, in a direction which traverses the optical axis of a taking lens as well as in a direction parallel to the optical axis of the lens to effect an electrophotographic processing of the photosensitive surface while mainintaing the film plane vertical.

REFERENCES:
patent: 2446668 (1948-08-01), Tuttle
patent: 2760418 (1956-08-01), Hawn
patent: 3115075 (1963-12-01), Alexander
patent: 3117501 (1964-01-01), Oliphant
patent: 3679301 (1972-07-01), Inoue

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