Image forming apparatus featuring a variable oscillating...

Details Image forming apparatus featuring a variable oscillating... Image forming apparatus featuring a variable oscillating...

2007-08-07

2007-08-07

Tran, Hoan (Department: 2852)

Electrophotography

Control of electrophotography process

Control of developing

C399S068000

Reexamination Certificate

active

11060654

ABSTRACT:
An image forming apparatus includes an image bearing member; a developer carrying member, disposed opposed to the image bearing member, for carrying a developer, wherein an electric field is formed between the developer carrying member and the image bearing member during a developing operation using the developer carrying member, and the electric field including an oscillating portion in which the electric field is an oscillating electric field, wherein a supply electric field of the oscillating electric field which is effective to supply the developer to the image bearing member from the developer carrying member is variably controllable in accordance with a peripheral speed of the image bearing member.

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