Electrophotographic method and apparatus

Details Electrophotographic method and apparatus Electrophotographic method and apparatus

1984-07-05

1986-09-16

Braun, Fred L.

Photocopying

Including fiber optics

250324, 355 3CH, 355 14CH, G03G 1501, G03G 1301

Patent

active

046119019

ABSTRACT:
An electrophotographic method according to the present invention forms a color image on a photosensitive drum by repeating a cycle of charging, exposure and development for a plurality of times. The second charging process for charging the photosensitive drum having a first visible image thereon is performed to temporarily discharge a predetermined charge and thereafter limit reaching of the predetermined charge on a surface of the photosensitive drum in accordance with a surface potential at the photosensitive drum.

REFERENCES:
patent: 3076092 (1963-01-01), Mott
patent: 3675096 (1972-07-01), Kiess
patent: 3950680 (1976-04-01), Michaels et al.
patent: 3967891 (1976-07-01), Rippstein
patent: 4033688 (1977-07-01), Orthmann
patent: 4053217 (1977-10-01), Mailloux
patent: 4308821 (1982-01-01), Matsumoto et al.
patent: 4335420 (1982-06-01), Mitsuo et al.

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