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:
May. 31, 2016

Filed:

Sep. 08, 2015
Applicants:

Tetsuyoshi Nakata, Kanagawa, JP;

Yasunari Harada, Kanagawa, JP;

Jun Watanabe, Tokyo, JP;

Tomoko Fukasawa, Kanagawa, JP;

Ryuuichi Satoh, Kanagawa, JP;

Hiroki Tanaka, Kanagawa, JP;

Toshiaki Hosokawa, Kanagawa, JP;

Inventors:

Tetsuyoshi Nakata, Kanagawa, JP;

Yasunari Harada, Kanagawa, JP;

Jun Watanabe, Tokyo, JP;

Tomoko Fukasawa, Kanagawa, JP;

Ryuuichi Satoh, Kanagawa, JP;

Hiroki Tanaka, Kanagawa, JP;

Toshiaki Hosokawa, Kanagawa, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/393 (2006.01); B41J 29/38 (2006.01);
U.S. Cl.
CPC ...
B41J 29/38 (2013.01);
Abstract

A printer including an optical moving amount calculator, an angle calculator, and a moving amount corrector is provided. The optical moving amount calculator calculates a moving amount of the printer or an object to be irradiated after a movement thereof, based on a difference in image data generated before and after the movement. The image data is generated by emitting light to the print medium or the object and receiving light reflected therefrom. The angle calculator calculates a deviation angle of an installation angle of the optical moving amount calculator installed in the printer, based on a calibration moving amount of the printer or the object after a calibration movement thereof that is a parallel translation. The moving amount corrector corrects the moving amount of the printer after the movement thereof, based on the calculated deviation angle of the optical moving amount calculator.


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