Electrophotographic process capable of image overlay and apparat

Details Electrophotographic process capable of image overlay and apparat Electrophotographic process capable of image overlay and apparat

1982-01-15

1984-09-04

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

430 54, 430 55, 430 67, 430100, G03G 13052, G03G 1324

Patent

active

044697678

ABSTRACT:
This invention provides a process for making image overlay through the steps constituting an electrophotographic process, and also an apparatus adapted for conducting such process. The process, based on an electrophotographic process utilizing a three-layered photosensitive member having an insulating cover layer, comprising exposing the photosensitive member to a first image-forming irradiation to be overlaid substantially simultaneously with or subsequent to a charging on the surface of the insulating layer, then exposing the photosensitive member to a second image-forming irradiation to be overlaid substantially simultaneously with an AC or DC corona discharge given to the photosensitive member, and subsequently giving a uniform exposure to the surface of said photosensitive member thereby obtaining an electrophotographic overlay image of the first and second irradiations.

REFERENCES:
patent: 3615395 (1971-10-01), Yamaji et al.
patent: 3871878 (1975-03-01), Mino
patent: 4071361 (1978-01-01), Marushima
patent: 4311778 (1982-01-01), Kadowaki et al.
patent: 4329413 (1982-05-01), Kitamura et al.

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