Developing apparatus usable with image forming apparatus,...

Details Developing apparatus usable with image forming apparatus,... Developing apparatus usable with image forming apparatus,...

2008-10-09

2011-12-27

Porta, David (Department: 2884)

Electrophotography

Image formation

Development

C399S277000, C399S229000, C399S272000

Reexamination Certificate

active

08086153

ABSTRACT:
A developing apparatus usable with an image forming apparatus includes a developer carrier includes a plurality of magnetic poles and a case to rotatably support the developer carrier, the case storing developer is supplied to the developer carrier, and a magnetic pole changing apparatus disposed at an end of the developer carrier to change a position of the plurality of magnetic poles with respect to the case.

REFERENCES:
patent: 4330198 (1982-05-01), Matsumoto et al.
patent: 6208817 (2001-03-01), Chadani et al.
patent: 2004/0022560 (2004-02-01), Hirobe et al.
patent: 2004/0126146 (2004-07-01), Mashtare et al.
patent: 0311020 (1989-04-01), None

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