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:
Jan. 10, 2012
Filed:
Mar. 27, 2009
Yoritsugu Maeda, Toride, JP;
Jiro Shirakata, Chigasaki, JP;
Jun Nakagaki, Abiko, JP;
Satoshi Atarashi, Toride, JP;
Yukihiro Fujiwara, Toride, JP;
Dai Kanai, Abiko, JP;
Jun Nakazato, Kashiwa, JP;
Yoritsugu Maeda, Toride, JP;
Jiro Shirakata, Chigasaki, JP;
Jun Nakagaki, Abiko, JP;
Satoshi Atarashi, Toride, JP;
Yukihiro Fujiwara, Toride, JP;
Dai Kanai, Abiko, JP;
Jun Nakazato, Kashiwa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A rotary member apparatus includes a main drive unit configured to apply a driving torque to a photosensitive drum through a drive transfer unit, a torque limiter configured to limit the driving torque transmitted from the main drive unit to the photosensitive drum, a compensation drive unit configured to apply a torque for adjusting an angular velocity of the photosensitive drum, an encoder configured to detect the angular velocity of the photosensitive drum, and a compensation drive controller configured to control the torque applied by the compensation drive unit on the basis of a detection result obtained by the encoder.