Duplicator processor

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G - Physics

03

G

314/39, 314/7

G03G 15/22 (2006.01) G03G 15/02 (2006.01) G03G 15/28 (2006.01)

Patent

CA 1038014

ABSTRACT Strip film of the conventional silver halide emulsion type is duplicated by optionally projecting the images onto a high speed electrophotographic film in a system comprising a flow type camera having the original film and the electrophotographic film traveling at the identical film speed. The first station for the electrophotographic film is a charging station, followed by the projection slit, a toning station and a toner fixing station. The background density of the original film is measured by photometric means and compared with preset density standards, the resulting information being used to enhance the images produced on the electrophotographic film by varying the charge voltage level. Charge level will control the amount of toner which adheres for a given time of toning.

190704

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