Developing apparatus

Details Developing apparatus Developing apparatus

2007-08-14

2007-08-14

Tran, Hoan (Department: 2852)

Electrophotography

Image formation

Development

C399S111000

Reexamination Certificate

active

11094372

ABSTRACT:
A developing apparatus develops a latent image formed on an electrophotographic photosensitive member with a developer in an electrophotographic image forming apparatus The device includes a developer accommodating portion and a developer stirring member stirring the developer in the developer accommodating portion. The developer stirring member includes a rotatable member rotatably provided in the developer accommodating portion, first and second stirring rotatable portions provided on the rotatable member, and first and second movable stirring portions movably provided on the first and second stirring rotatable portions, respectively. The radius of rotation of the first and second stirring rotatable portions are different from each other, and a part of a stirring region in which the first stirring rotatable portion and the first movable stirring portion stir the developer and a part of a stirring region in which the second stirring rotatable portion and the second movable stirring portion stirs the developer, overlap.

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