Image forming apparatus wherein an image forming region and...

Details Image forming apparatus wherein an image forming region and... Image forming apparatus wherein an image forming region and...

2005-05-19

2008-11-25

Grainger, Quana M (Department: 2852)

Electrophotography

Control of electrophotography process

Control of charging

Reexamination Certificate

active

07457554

ABSTRACT:
An image forming apparatus includes a rotatable image bearing member on which an electrostatic latent image is formed, a charging member, and a transfer member. A charging potential of the charging member is different between when the charging member provides a first region on the image bearing member with a potential and when the charging member provides a second region on the image bearing member with a potential, thus providing a predetermined potential difference between the first region and the second region. A third region on the image bearing member, with the transfer member being supplied with a voltage to provide a predetermined potential difference between a potential of the third region before being charged by the charging member and a potential of the third region after being charged by the charging member.

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