Electrophotography – Control of electrophotography process – Control of developing
Reexamination Certificate
2006-04-18
2006-04-18
Grainger, Quana (Department: 2852)
Electrophotography
Control of electrophotography process
Control of developing
C399S149000
Reexamination Certificate
active
07031629
ABSTRACT:
An image forming apparatus includes an image bearing member; a charging member for electrically charging the image bearing member; developing means for developing with a developer an electrostatic latent image formed on the image bearing member, the developing means having a developer carrying member for carrying the developer, wherein a gap is formed between the developer carrying member and the image bearing member; bias voltage applying means for applying a bias voltage to the developer carrying member, wherein the bias applying means applies an AC bias when the electrostatic latent image is developed, wherein the developing means is capable of collecting the developer fro the image bearing member, and an amplitude of an AC bias voltage applied to the developer carrying member by the bias applying means when the the developer is collected, is larger than that when the the electrostatic latent image is developed.
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Chigono Yasunori
Kawamura Takeshi
Nakagawa Ken
Osada Hikaru
Otaka Koichi
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Grainger Quana
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