Image forming apparatus including an index feature for...

Details Image forming apparatus including an index feature for... Image forming apparatus including an index feature for...

2007-08-28

2007-08-28

Grainger, Quana (Department: 2852)

Electrophotography

Image formation

Development

Reexamination Certificate

active

11249630

ABSTRACT:
The image forming apparatus has an electrophotographic photosensitive member and a developing device for using a developer including toner and carrier, wherein the developing device develops an electrostatic image on a photosensitive member by putting the developer forming a magnetic brush on a developer bearing member including magnetic field generation device inside in contact with the photosensitive member, and when a contact pressure of the developer on the developer bearing member against the photosensitive member is P (Pa), a circumferential velocity of the developer bearing member is VSl(mm/s), a circumferential velocity of the photosensitive member is VDr(mm/s), and an elastic deformation ratio of the photosensitive member is W (%), a degree of sliding of the photosensitive member by the developer represented ranges from 650 to 60500.

REFERENCES:
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patent: 6975825 (2005-12-01), Sakamaki et al.
patent: 7054584 (2006-05-01), Hirobe
patent: 2005/0106489 (2005-05-01), Sugahara et al.
patent: 2006/0222415 (2006-10-01), Hirobe
patent: 5-303244 (1993-11-01), None
patent: 10-340030 (1998-12-01), None

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