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 9975717
SERIAL NO

15412398

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A sheet feeding apparatus includes a sheet presence/absence detection sensor configured to detect presence or absence of a sheet on a stacking device, a sheet surface detection sensor configured to detect that a stacking tray is raised to enable a sheet to be fed, a separation cam, and a control unit. The control unit is configured to determine that the mounting state of a feeding holder to a holder support unit is defective when the sheet surface detection sensor detects that the sheet can be fed when the sheet presence/absence detection sensor detects absence of a sheet before sheet feeding processing by a pickup roller.

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHAOHTA-KU TOKYO 146-8501

International Classification(s)

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Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2017201820192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujinuma, Yasuhito Susono, JP 5 28
Okazaki, Shunsuke Mishima, JP 20 101

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Patent Citation Ranking

  • 1 Citation Count
  • B65H Class
  • 41.16 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges4776284571101 - 1011 - 2021 - 3041 - 5051 - 60050100150200250300350400450500550600650700

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