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.:
Date of Patent:
Feb. 05, 2019
Filed:
Jan. 04, 2017
Yuki Fujii, Kanagawa, JP;
Yasunobu Youda, Kanagawa, JP;
Yohei Osanai, Kanagawa, JP;
Tatsuaki Nagano, Kanagawa, JP;
Satoshi Narai, Kanagawa, JP;
Toshiyuki Horikawa, Kanagawa, JP;
Takuji Kawai, Kanagawa, JP;
Daisuke Imaki, Tokyo, JP;
Takayuki Andoh, Kanagawa, JP;
Susumu Miyazaki, Tokyo, JP;
Tetsuo Inui, Kanagawa, JP;
Koichi Ono, Kanagawa, JP;
Takeshi Shikama, Kanagawa, JP;
Shingo Shiramura, Kanagawa, JP;
Hideo Tanaka, Kanagawa, JP;
Yuki Fujii, Kanagawa, JP;
Yasunobu Youda, Kanagawa, JP;
Yohei Osanai, Kanagawa, JP;
Tatsuaki Nagano, Kanagawa, JP;
Satoshi Narai, Kanagawa, JP;
Toshiyuki Horikawa, Kanagawa, JP;
Takuji Kawai, Kanagawa, JP;
Daisuke Imaki, Tokyo, JP;
Takayuki Andoh, Kanagawa, JP;
Susumu Miyazaki, Tokyo, JP;
Tetsuo Inui, Kanagawa, JP;
Koichi Ono, Kanagawa, JP;
Takeshi Shikama, Kanagawa, JP;
Shingo Shiramura, Kanagawa, JP;
Hideo Tanaka, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An image reading device includes: a reading unit; a first detecting unit that detects a position of the reading unit in the sub-scanning direction; a second detecting unit that detects a position of the reading unit in the sub-scanning direction; and a calculating unit that calculates a skew quantity and a skew direction of the reading unit, based on a difference, introduced by the skew, between a travel distance by which the reading unit has travelled from a measurement reference position located on an upstream side of the first detecting unit and the second detecting unit in a moving direction to a point where the reading unit is detected by the first detecting unit, and a travel distance by which the reading unit has travelled from the measurement reference position to a point where the reading unit is detected by the second detecting unit.