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:
Nov. 18, 2014

Filed:

Oct. 24, 2012
Applicants:

Yusuke Kawanago, Tokyo, JP;

Takahiro Okubo, Tokyo, JP;

Masahiro Matsuo, Tokyo, JP;

Yoshiteru Kawakami, Tokyo, JP;

Haruki Motegi, Tokyo, JP;

Osamu Yoshimura, Aichi, JP;

Kunihiro Kawachi, Tokyo, JP;

Ken Nonaka, Tokyo, JP;

Inventors:

Yusuke Kawanago, Tokyo, JP;

Takahiro Okubo, Tokyo, JP;

Masahiro Matsuo, Tokyo, JP;

Yoshiteru Kawakami, Tokyo, JP;

Haruki Motegi, Tokyo, JP;

Osamu Yoshimura, Aichi, JP;

Kunihiro Kawachi, Tokyo, JP;

Ken Nonaka, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); B65H 7/02 (2006.01); G03G 15/01 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0189 (2013.01); G03G 15/6561 (2013.01);
Abstract

An image forming apparatus acquires an amount of deflection of the transporting sheet from a reference position thereof and calculates a required shift amount of the sheet. It determines whether or not the sheet is shifted frontward. If so, the image forming apparatus acquires a second specified shift value which is determined based on an urging force and the required shift amount using a second correction equation. Alternatively, if the sheet is shifted backward, the image forming apparatus acquires a first specified shift value which is determined based on the urging force and the required shift amount using a first correction equation. The image forming apparatus performs a registration roller shift correction based on the acquired first or second specified shift value.


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