Development device

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United States of America Patent

PATENT NO 9098011
APP PUB NO 20120189357A1
SERIAL NO

13344939

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Abstract

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A typical configuration of a development device for an image forming apparatus includes a development sleeve and an electrode portion. In the development device, a pre-bias is applied between the electrode portion and the photosensitive drum, a DC voltage is applied to the development sleeve, a development bias is applied between the development sleeve and the photosensitive drum, the toner in the developer on the development sleeve is moved to the photosensitive drum, and an electrostatic latent image is developed on the photosensitive drum. In the development device, the electric field intensity between the electrode portion and the development sleeve by the pre-bias is larger than the electric field intensity between the image bearing member and the development sleeve by the development bias.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Okumura, Shohei Tokyo, JP 22 22

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