The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 1976
Filed:
Dec. 21, 1973
Ricoh Co., Ltd., Tokyo, JA;
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.