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:
Apr. 10, 2012
Filed:
Dec. 09, 2009
Hiroyuki Saito, Yokohama, JP;
Haruo Uchida, Yokohama, JP;
Kenji Shigeno, Yokohama, JP;
Noriyuki Aoki, Tokyo, JP;
Kazuhisa Kawakami, Yokohama, JP;
Yuji Kanome, Yokohama, JP;
Kosuke Yamamoto, Yokohama, JP;
Masakazu Tsukuda, Tokyo, JP;
Yoshiaki Suzuki, Nagareyama, JP;
Hiroyuki Saito, Yokohama, JP;
Haruo Uchida, Yokohama, JP;
Kenji Shigeno, Yokohama, JP;
Noriyuki Aoki, Tokyo, JP;
Kazuhisa Kawakami, Yokohama, JP;
Yuji Kanome, Yokohama, JP;
Kosuke Yamamoto, Yokohama, JP;
Masakazu Tsukuda, Tokyo, JP;
Yoshiaki Suzuki, Nagareyama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A printing apparatus has a sensor unit which optically detects, at a measurement position, a surface of a sheet, for measuring a moving state of the sheet. The sensor unit measures the moving state of the sheet when the sheet is located at the measurement position, and measures a moving state of a surface of the rotary member when the sheet is not located at the measurement position. The sensor unit has at least one of an image sensor arranged to perform imaging of one of the surface of the sheet and the surface of the rotary member so as to obtain image data, based on which the moving state is measured and a Doppler velocity sensor.