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:
Dec. 29, 2009
Filed:
Oct. 25, 2007
Takashi Ushijima, Yokohama, JP;
Kaoru Noguchi, Tokyo, JP;
Atsushi Kandori, Ebina, JP;
Yoshitaka Zaitsu, Kawasaki, JP;
Kazuhiko Kato, Tokyo, JP;
Toshiyuki Ogawa, Tokyo, JP;
Futoshi Hirose, Yokohama, JP;
Takashi Ushijima, Yokohama, JP;
Kaoru Noguchi, Tokyo, JP;
Atsushi Kandori, Ebina, JP;
Yoshitaka Zaitsu, Kawasaki, JP;
Kazuhiko Kato, Tokyo, JP;
Toshiyuki Ogawa, Tokyo, JP;
Futoshi Hirose, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A potential sensor is provided in which the adhesion of toner particles to the potential sensor is reduced or prevented from occurring, reducing or preventing the occurrence of a situation that accurate detection cannot be performed. The potential sensor has a movable member, detecting electrodes formed on the movable member, a support which movably supports the movable member, a driving mechanism which drives the movable member, and a stationary member which supports the support. Between the movable member and the stationary member, a first gap is so formed as to make the movable membermovable. The first gap has a part that is not larger in width than the maximum size of toner particles when the movable member is not elastically deformed and is at a neutral position.