US Patent No: 8,172,227

Number of patents in Portfolio can not be more than 2000

Sheet detecting device and image forming apparatus

ALSO PUBLISHED AS: 20110089629
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Importance

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Abstract

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A sheet detecting device includes a rotation unit having an abutment surface, a positioning unit configured to position the rotation unit in a standby position where the leading edge of the conveyed sheet abuts the abutment surface, and a detecting unit configured to detect the conveyed sheet on the basis of the rotation of the rotation unit pressed by the conveyed sheet, wherein the rotation unit rotates to a sheet passage posture where the sheet is allowed to pass after being pressed by the leading edge of the conveyed sheet and, when the trailing edge of the conveyed sheet passes the rotation unit, the rotation unit is rotated from the sheet passage posture in the same direction as a sheet conveying direction and is positioned in the standby position.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CANON KABUSHIKI KAISHATOKYO55597

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Furusawa, Motohiro Shizuoka, JP 30 36
Kawanishi, Minoru Shizuoka-Ken, JP 46 146
Watanabe, Kenji Hyogo, JP 634 3007

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Goldstar Co., Ltd. (1)
5,204,726 Copying paper feed sensing device for a copying apparatus 8 1991
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
4,395,035 Air shingler 2 1980
 
KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. (1)
2010/0148,431 SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH THE SHEET FEEDING DEVICE 1 2009
 
SAMSUNG ELECTRONICS CO., LTD. (1)
5,651,538 Paper feeding method of an image forming apparatus 12 1995
 
SHARP KABUSHIKI KAISHA (1)
5,923,140 Detecting device for detecting the traveling state of a moving object 6 1997

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
CANON KABUSHIKI KAISHA (4)
8,387,975 Sheet conveying apparatus and image forming apparatus 2 2011
8,528,899 Sheet detecting apparatus and image forming apparatus 0 2011
8,849,178 Sheet detecting apparatus and image forming apparatus 0 2012
8,556,259 Sheet conveying apparatus and image forming apparatus 0 2013

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