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 9836004 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 05, 2017

Filed:

Jul. 14, 2016
Applicants:

Ken Oikawa, Kanagawa, JP;

Minoru Takahashi, Kanagawa, JP;

Inventors:

Ken Oikawa, Kanagawa, JP;

Minoru Takahashi, Kanagawa, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 15/16 (2006.01);
U.S. Cl.
CPC ...
G03G 15/6529 (2013.01); G03G 15/167 (2013.01); G03G 15/168 (2013.01);
Abstract

A pressurizing device includes: first and second rollers that holds a sheet-like medium with an image bearer formed on at least part of a surface of thereof between the first and second rollers and send the medium in a conveying direction while applying a pressure to the medium; a position control unit that performs feedback control of the position of at least one of the first and second rollers; a force control unit that performs feedback control of a force acting on between the first and second rollers; and a control-method switching unit that switches, after the position of the first and second rollers is switched from a separation position to a contact position by the feedback control performed by the position control unit, a feedback controlled object so that the force becomes a target value of nip pressure through the feedback control performed by the force control unit.


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