Electrophotographic process and photosensitive member for use in

Details Electrophotographic process and photosensitive member for use in Electrophotographic process and photosensitive member for use in

1982-05-27

1984-04-24

Martin, Jr., Roland E.

Radiation imagery chemistry: process, composition, or product th

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

To produce multiple image on medium or plural radiant energy...

430 55, G03G 1322, G03G 1324

Patent

active

044448597

ABSTRACT:
An electrophotographic process for forming an electrostatic latent image in a photosensitive member. The photosensitive member is formed by applying, on a transparent conductive substrate, a transparent insulating layer and a photoconductive layer, which photoconductive layer is composed of a charge transfer layer and charge generation layers applied on both surfaces of the charge transfer layer. The charge transfer layer has a high mobility for charges of positive polarity. At first, the photosensitive member is negatively charged, while the member is uniformly irradiated from the side of the substrate. Then the photosensitive member is positively charged, while the member is exposed to a positive image of a document from the side of the photoconductive layer. Finally, the photosensitive member is exposed to a negative image of the document from the side of the photoconductive layer to form the electrostatic latent image from charges trapped across the insulating layer.

REFERENCES:
patent: 3457070 (1969-07-01), Watanabe et al.
patent: 3655369 (1972-04-01), Kinoshita
patent: 3813243 (1974-05-01), Kitajima et al.
patent: 4071361 (1978-01-01), Marushima
patent: 4254199 (1981-03-01), Tutihasi

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