Sheet detecting device and image forming apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8172227
APP PUB NO 20110089629A1
SERIAL NO

12904028

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ATTORNEY / AGENT: (SPONSORED)

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 KAISHATOKYO44371

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Furusawa, Motohiro Suntou-gun, JP 20 126
Kawanishi, Minoru Yokohama, JP 29 259
Watanabe, Kenji Suntou-gun, JP 484 5686

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SHARP KABUSHIKI KAISHA (1)
5923140 Detecting device for detecting the traveling state of a moving object 10 1997
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
* 4395035 Air shingler 2 1980
 
Goldstar Co., Ltd. (1)
* 5204726 Copying paper feed sensing device for a copying apparatus 10 1991
 
KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. (1)
* 2010/0148,431 SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH THE SHEET FEEDING DEVICE 2 2009
 
SAMSUNG ELECTRONICS CO., LTD. (1)
5651538 Paper feeding method of an image forming apparatus 12 1995
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
CANON KABUSHIKI KAISHA (8)
* 8387975 Sheet conveying apparatus and image forming apparatus 6 2011
* 2012/0091,652 SHEET CONVEYING APPARATUS AND IMAGE FORMING APPARATUS 3 2011
* 8528899 Sheet detecting apparatus and image forming apparatus 1 2011
* 2012/0181,741 SHEET DETECTING APPARATUS AND IMAGE FORMING APPARATUS 3 2011
8849178 Sheet detecting apparatus and image forming apparatus 0 2012
8556259 Sheet conveying apparatus and image forming apparatus 2 2013
* 9193546 Sheet conveying unit and image forming apparatus 1 2014
9637336 Sheet conveying apparatus and image forming apparatus 0 2015
* Cited By Examiner

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