Developer storage device and image forming apparatus to determine service life or replacement time of the developer storage device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11841646
APP PUB NO 20220382185A1
SERIAL NO

17824530

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A developer storage device that stores developer includes a frame having an internal space and an inlet, a partition portion for partitioning the internal space into first and second chambers, the partition portion including a communication port through which the first and second chamber communicate, a conveyance portion arranged in the internal space and configured to convey the developer, and a detection unit detecting an amount of the developer stored in the first chamber. When the amount of the developer in the first chamber is less than a predetermined value, the developer is conveyed to a far side portion of the first chamber by the conveyance portion. When the detection unit detects that the amount of the developer in the first chamber reaches the predetermined value or more, the conveyance portion conveys the developer to the second chamber.

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHA3-30-2 TOKYO JAPAN TOKYO TOKYO METROPOLIS

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gofuku, Shuichi Shizuoka, JP 39 239
Isobe, Kenichirou Kanagawa, JP 14 53
Ueda, Shinichi Shizuoka, JP 56 720

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