Image forming apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12066767
APP PUB NO 20230305428A1
SERIAL NO

18182882

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An image forming apparatus includes an image bearing member and a developer bearing member. A first period is from when rotational drive of the developer bearing member is started until increased to a speed at which the image forming apparatus performs image forming. A first absolute value of a difference between a developer bearing member surface potential Vdc and an image bearing member surface potential Vd, as determined when the image bearing member is facing the developer bearing member, is obtained during the first period. The value |Vdc−Vd| obtained during the first period is smaller than the value |Vdc−Vd| obtained after the first period. During the first period, the image bearing member surface potential Vd at the facing position is a first potential and, after the first period, the image bearing member surface potential Vd at the facing position becomes a second potential different from the first potential.

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHA30-2 SHIMOMARUKO 3-CHOME OHTA-KU TOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fuse, Takahito Chiba, JP 7 32
Ishida, Hiroaki Tokyo, JP 43 224
Kohno, Tatsuya Chiba, JP 9 33
Matsumoto, Atsushi Ibaraki, JP 382 5029

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