Electrostatic copying apparatus

Details Electrostatic copying apparatus Electrostatic copying apparatus

1980-10-29

1982-04-27

Truhe, J. V.

Photocopying

Including fiber optics

355 3CH, 355 14CH, G03G 1500

Patent

active

043267947

ABSTRACT:
An electrostatic copying apparatus comprising a photosensitive layer prepared from a photoconductive material, corona discharge unit which generates a corona discharge to form an electrified corona discharge region on the photosensitive layer, light-emitting unit which is disposed adjacent to the corona discharge unit and emits light beams over the electrified corona discharge region of the photosensitive layer, thereby producing a conductive light-irradiated region on the photosensitive layer, and adjustment device for controlling the dimensions of the light-irradiated region to control the overlapping portions of the light-irradiated region and corona discharge region, thereby selectively defining the substantially electrified portion of the corona discharge region.

REFERENCES:
patent: 3819259 (1974-06-01), Lux
patent: 4062631 (1977-12-01), Ichikawa et al.
patent: 4066351 (1978-01-01), Kidd
patent: 4133609 (1979-01-01), Arai
patent: 4136941 (1979-01-01), Sawaoka
patent: 4174170 (1979-11-01), Yamamoto et al.

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