Image forming apparatus with developer-cleaning capabilities

Details Image forming apparatus with developer-cleaning capabilities Image forming apparatus with developer-cleaning capabilities

2007-09-25

2007-09-25

Beatty, Robert (Department: 2852)

Electrophotography

Control of electrophotography process

Control of cleaning

C399S101000

Reexamination Certificate

active

10957646

ABSTRACT:
An image forming apparatus comprises: a photosensitive element; a charger electrostatically charging a surface of the photosensitive element uniformly at a voltage of a polarity; an exposure device exposing the charged surface of the photosensitive element, to a light, to form an electrostatic latent image; a developing device depositing a developer on the latent image, to form a developer image; a device for transferring the developer image onto a transfer object; and a developer removing device comprising a cleaning member, to which a voltage is applied to generate a cleaning bias between the cleaning member and photosensitive element, to remove a waste developer adhering to the photosensitive element after the developer image is transferred, and which is disposed to act on a part of the surface of the photosensitive element having been charged by the charger and at which the developer image is not formed yet.

REFERENCES:
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patent: 5832336 (1998-11-01), Kawasaki et al.
patent: 5943533 (1999-08-01), Ogata et al.
patent: 5966563 (1999-10-01), Kashihara et al.
patent: 6029033 (2000-02-01), Kawasaki
patent: 6081679 (2000-06-01), Yamane et al.
patent: 6650850 (2003-11-01), Nishimura
patent: 6810223 (2004-10-01), Eun et al.

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