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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9487370 B1

PDFFull Text
Date of Patent:
Nov. 08, 2016

Filed:

Aug. 18, 2014

Sheet material conveying device, image scanning device, and image forming apparatus

Applicants:

Hiroaki Utagawa, Kanagawa, JP;

Takanori Ohta, Kanagawa, JP;

Takashi Nakano, Kanagawa, JP;

Takashi Fukumoto, Kanagawa, JP;

Kenji Hayasaka, Kanagawa, JP;

Joji Akiyama, Kanagawa, JP;

Masataka Fukuchi, Kanagawa, JP;

Inventors:

Hiroaki Utagawa, Kanagawa, JP;

Takanori Ohta, Kanagawa, JP;

Takashi Nakano, Kanagawa, JP;

Takashi Fukumoto, Kanagawa, JP;

Kenji Hayasaka, Kanagawa, JP;

Joji Akiyama, Kanagawa, JP;

Masataka Fukuchi, Kanagawa, JP;

Assignee:

RICOH COMPANY, LIMITED, Tokyo, JP;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Ernesto Suarez

Int. Cl.
CPC ...
B65H 7/14 (2006.01); B65H 7/12 (2006.01); B65H 7/20 (2006.01); B65H 1/14 (2006.01); B65H 3/06 (2006.01); B65H 3/52 (2006.01); B65H 5/06 (2006.01); B65H 9/00 (2006.01);
U.S. Cl.
CPC ...
B65H 7/125 (2013.01); B65H 1/14 (2013.01); B65H 3/0684 (2013.01); B65H 3/5261 (2013.01); B65H 5/062 (2013.01); B65H 7/14 (2013.01); B65H 7/20 (2013.01); B65H 9/006 (2013.01); B65H 2404/6111 (2013.01); B65H 2513/10 (2013.01); B65H 2513/50 (2013.01); B65H 2553/30 (2013.01); B65H 2701/1311 (2013.01); B65H 2701/1313 (2013.01); B65H 2801/06 (2013.01); B65H 2801/39 (2013.01);
Abstract

A sheet material conveying device includes: a sheet material housing unit; a sheet material conveying unit that conveys each sheet material to a predetermined conveyance target position; a separating/feeding unit that separates a sheet material from sheet materials in the sheet material housing unit and conveys the separated sheet material alone to the sheet material conveying unit; a multi-feed detecting unit that detects whether multi-feed occurs in which a plurality of sheet materials are fed from the separating/feeding unit to the sheet material conveying unit; and an internal sheet material detecting unit that detects presence of the sheet material in the sheet material conveying unit. The sheet material conveying device performs multi-feed failure detection control for detecting whether a failure occurs in the multi-feed detecting unit before notification of a detection result of the internal sheet material detecting unit.

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