Developing unit, visualized image formation unit and image...

Details Developing unit, visualized image formation unit and image... Developing unit, visualized image formation unit and image...

2011-08-02

2011-08-02

Gray, David M (Department: 2852)

Electrophotography

Image formation

Development

C399S254000, C399S256000

Reexamination Certificate

active

07991331

ABSTRACT:
A developing unit includes a developer consumption calculator calculating consumptions of developer in zones and storing the consumption in each zone into a corresponding storage region; a consumption shift unit shifting the consumption stored in the storage region corresponding to each zone to a storage region corresponding to a zone located on a downstream side in a developer conveyance direction in response to the conveying of the developer by the circulation conveyance member; a supply amount setting unit setting a supply amount from a developer supply portion based on the consumption stored in the storage region corresponding to the zone corresponding to the developer supply position; and a developer supply controller controlling supply of the developer from the developer supply portion based on the set supply amount.

REFERENCES:
patent: 7627272 (2009-12-01), Iwamura
patent: 7783215 (2010-08-01), Tanaka
patent: 2002/0176717 (2002-11-01), Bray et al.
patent: 2006/0018673 (2006-01-01), Choi
patent: 2006/0222412 (2006-10-01), Ito et al.
patent: 2006/0263106 (2006-11-01), Yamaguchi et al.
patent: 2007/0280739 (2007-12-01), Tanaka
patent: A-11-160989 (1999-06-01), None
patent: A-2006-171177 (2006-06-01), None
Machine translation provided by Applicant of Kikuchi (Pub No. JP 2006-171177) pub date Jun. 29, 2006.

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