Photocopying – Contact printing – Light boxes
Patent
1994-03-16
1996-07-09
Grimley, Arthur T.
Photocopying
Contact printing
Light boxes
355207, 355219, G03G 2100
Patent
active
055349773
ABSTRACT:
An image forming apparatus with which the surface potential of the photoreceptor drum is made appropriate reliably in a relatively short time is provided with the following: a charger unit for charging the surface of the photoreceptor drum; an exposing unit for forming a latent image; a potential sensor for detecting a charge potential; and a controller for controlling outputs of the charger unit and the exposing unit. The surface potential of the photoreceptor drum is made appropriate by detecting and correcting the potential after the photoreceptor drum surface is charged at a potential close to a desired potential. After both the dark and bright portions are charged at appropriate potentials, image formation is performed.
REFERENCES:
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patent: 4939542 (1990-07-01), Kurando et al.
patent: 4963926 (1990-10-01), Onishi et al.
patent: 5173734 (1992-12-01), Shimizu et al.
patent: 5182596 (1993-01-01), Nakazawa et al.
patent: 5225872 (1993-07-01), Fukushima
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patent: 5436697 (1995-07-01), Negishi
Ichihashi Takao
Matsumoto Masashi
Saitoh Yasushi
Yamada Shuji
Grimley Arthur T.
Lee Shuk Y.
Mita Industrial Co. Ltd.
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