Developing device and image forming apparatus including the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11914312
APP PUB NO 20230030358A1
SERIAL NO

17858537

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A developing device includes a developing container storing a two-component developer containing a magnetic carrier and a toner, a developer carrying member carrying the developer on its outer circumferential surface, and a regulation member arranged to be opposed at a prescribed distance to the developer carrying member. The developer carrying member includes a developing sleeve on which a magnetic brush is formed, and a magnet secured in the developing sleeve and having a plurality of magnetic poles including a regulation pole opposed to the regulation member and a downstream-side magnetic pole arranged downstream of the regulation pole with respect to the rotation direction of the developing sleeve. The magnet is such that the vertical magnetic force gradient [mT/°] has a local minimum value near a position at which the vertical magnetic force is 0 [mT] between the downstream-side surface of the regulation member and the downstream-side magnetic pole.

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First Claim

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Patent Owner(s)

  • KYOCERA DOCUMENT SOLUTIONS INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shimizu, Tamotsu Osaka, JP 108 405
Tauchi, Yasuhiro Osaka, JP 26 23
Toyota, Yuji Osaka, JP 44 83

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