Electronic photographing device

Details Electronic photographing device Electronic photographing device

1982-07-28

1984-05-01

Braun, Fred L.

Photocopying

Including fiber optics

355 4, 355 14CH, 361235, G03G 1502

Patent

active

044457723

ABSTRACT:
An electrophotographic device wherein an image is formed by exposing a movable photosensitive member to an optical image, wherein such member includes a conductive layer, a photoconductive layer, and an insulating layer. A primary corona discharger of predetermined polarity charges the surface of such member and an imagewise exposure is effected through an optically open port in the rear side of a secondary corona discharger. A plural number of sets of control grids, adapted to be set at different electric potentials, are used in conjunction with the secondary charger which applies a corona discharge having an opposite polarity component to the primary corona. The control potential at the upstream grid has a value biased more toward the high light potential side of the latent image than toward the control potential of the adjacent grid.

REFERENCES:
patent: 3527941 (1970-09-01), Culhane et al.
patent: 3967891 (1976-07-01), Rippstein
patent: 3990791 (1976-11-01), Tsukada
patent: 4141648 (1979-02-01), Gaitten et al.
patent: 4165165 (1979-08-01), Iwami et al.

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