Developing apparatus and image forming apparatus

Details Developing apparatus and image forming apparatus Developing apparatus and image forming apparatus

2011-03-29

2011-03-29

Ngo, Hoang (Department: 2852)

Electrophotography

Image formation

Development

C399S053000, C399S256000

Reexamination Certificate

active

07917066

ABSTRACT:
The image forming apparatus includes a developing chamber an agitating chamber, a first conveying screw which is arranged in the developing chamber and coveys developer from one end to the other end of the first chamber, a second conveying screw which is arranged in the agitating chamber and conveys developer from one end to the other end of the second chamber, a developing sleeve which bears developer supplied from the developing chamber and conveys the developer to the agitating chamber via a developing area opposed to a photosensitive drum, motors, which drive the developing sleeve, the first conveying screw and the second conveying screw, and a controller which controls drive of the developing sleeve and the second conveying screw so that trigger timing of drive stopping of at least the second conveying screw is to be later than trigger timing of drive stopping of the developing sleeve.

REFERENCES:
patent: 7248825 (2007-07-01), Nishitani et al.
patent: 7729641 (2010-06-01), Suzuki
patent: 5-333691 (1993-12-01), None
patent: 2003-186293 (2003-07-01), None
patent: 2005-292511 (2005-10-01), None

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