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:
Mar. 22, 2016

Filed:

Mar. 02, 2015
Applicants:

Yoshikuni Ishikawa, Tokyo, JP;

Manabu Nonaka, Kanagawa, JP;

Inventors:

Yoshikuni Ishikawa, Tokyo, JP;

Manabu Nonaka, Kanagawa, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 3/18 (2006.01); B65H 3/04 (2006.01); B65H 5/06 (2006.01);
U.S. Cl.
CPC ...
B65H 3/18 (2013.01); B65H 3/04 (2013.01); B65H 5/068 (2013.01); B65H 2403/41 (2013.01); B65H 2404/25 (2013.01); B65H 2404/255 (2013.01); B65H 2404/2693 (2013.01);
Abstract

A sheet conveyor incorporated in an image forming apparatus includes an attraction/separation unit including an attraction belt, a first tension roller, and a second tension roller, a support member to support the attraction/separation unit, a roller drive unit to rotate one of the first and second tension rollers, a charging member to uniformly charge a surface of the attraction belt, a mechanism to swing the attraction/separation unit to move the attraction belt reciprocally about the support member between a sheet attraction position and a sheet conveyance position being located farther from the sheet stack than the sheet attraction position, and a pressing member disposed inside a loop of the attraction belt to press the attraction belt at the sheet attraction position toward the sheet stack and separating from the attraction belt at the sheet conveyance position.


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