Sheet feeding apparatus and image forming apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12091269
APP PUB NO 20230159289A1
SERIAL NO

18050176

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A sheet feeding apparatus includes a sheet stacker, an air blower, a suction feeder, a lifting mechanism, an elevation detection sensor, an elevation detection sensor, a feed detection sensor, and processing circuitry. The air blower blows air to float an uppermost sheet of sheets stacked on the sheet stacker. The processing circuitry drives the lifting mechanism such that the sheet stacker is lifted by an elevation amount determined based on a sheet thickness of the sheets stacked on the sheet stacker, each time a sheet is detected when a number of sheets detected is smaller than a threshold number of sheets, and stops lifting of the sheet stacker until a sheet is not detected when the number of sheets reaches the threshold number of sheets, while repeatedly feeding the uppermost sheet and counting the number of sheets.

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Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY LTD3-6 NAKAMAGOME 1-CHOME OHTA-KU TOKYO 143-8555

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kojima, Hidetoshi Kanagawa, JP 37 452
Okutsu, Toshihiro Kanagawa, JP 14 169
Sugawara, Tatsuya Kanagawa, JP 38 484
Takamiya, Yohsuke Kanagawa, JP 3 6
Tamaki, Sachika Kanagawa, JP 6 7

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