Image forming apparatus and control method using a...

Details Image forming apparatus and control method using a... Image forming apparatus and control method using a...

2007-03-27

2007-03-27

Tran, Hoan (Department: 2852)

Electrophotography

Image formation

Development

C399S255000, C399S256000

Reexamination Certificate

active

10945427

ABSTRACT:
A CPU controls a shutter of a developing device so as to enable movement of a developer between a first chamber and a second chamber that store the developer. The CPU rotates a developing roller and mixers of the first and second chambers for a predetermined time T, and stirs and conveys the developer. Thereby, the developer is moved from the first chamber into the second chamber. The amount of movement of the developer is understandable from the rotational speed and shape of each mixer. Hence, the amount of developer, which is moved from the first chamber to the second chamber, is estimated in advance, and about half the developer in the first chamber is replaced.

REFERENCES:
patent: 5436703 (1995-07-01), DeYoung et al.
patent: 6151471 (2000-11-01), Yahata et al.
patent: 6615014 (2003-09-01), Sugihara
patent: 7039344 (2006-05-01), Nishiyama
patent: 7046945 (2006-05-01), Nishitani et al.
patent: 2866319 (1998-12-01), None

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