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.

Date of Patent:
Oct. 06, 2015

Filed:

Aug. 11, 2014
Applicants:

Makoto Nakura, Ibaraki, JP;

Takuro Kamiya, Kanagawa, JP;

Shingo Takai, Ibaraki, JP;

Naoto Ueda, Ibaraki, JP;

Satoshi Ueda, Ibaraki, JP;

Akira Kobashi, Ibaraki, JP;

Koichi Kudo, Kanagawa, JP;

Inventors:

Makoto Nakura, Ibaraki, JP;

Takuro Kamiya, Kanagawa, JP;

Shingo Takai, Ibaraki, JP;

Naoto Ueda, Ibaraki, JP;

Satoshi Ueda, Ibaraki, JP;

Akira Kobashi, Ibaraki, JP;

Koichi Kudo, Kanagawa, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/01 (2006.01); G03G 15/00 (2006.01); B65H 5/06 (2006.01); B65H 7/14 (2006.01); G03G 15/16 (2006.01); B65H 7/20 (2006.01); B65H 7/06 (2006.01); G03G 15/23 (2006.01);
U.S. Cl.
CPC ...
G03G 15/6529 (2013.01); B65H 5/06 (2013.01); B65H 5/062 (2013.01); B65H 7/06 (2013.01); B65H 7/14 (2013.01); B65H 7/20 (2013.01); G03G 15/1615 (2013.01); G03G 15/6561 (2013.01); B65H 2511/11 (2013.01); B65H 2511/33 (2013.01); B65H 2513/50 (2013.01); B65H 2553/51 (2013.01); B65H 2701/1311 (2013.01); B65H 2701/1313 (2013.01); G03G 15/0189 (2013.01); G03G 15/234 (2013.01);
Abstract

A sheet conveying apparatus includes a sheet conveying unit that conveys a sheet including a drive roller, a driven roller, and a rotary encoder provided on a rotational axle of one of the drive roller and the driven roller; a conveying amount measuring unit that measures a conveying amount of the sheet; a first detection unit positioned downstream of the sheet conveying unit, the first detection unit being positioned apart from the drive roller and the driven roller not to overlap with the drive roller and the driven roller in the conveying direction; a second detection unit positioned upstream of the sheet conveying unit; and a conveying distance calculation unit that calculates a conveying distance of the sheet based on the measured result by the conveying amount measuring unit and the detected results detected by the first detection unit and the second detection unit.


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