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:
Nov. 19, 2013
Filed:
Dec. 17, 2009
Hiroyuki Kidaka, Abiko, JP;
Yuichi Makino, Abiko, JP;
Hiroyuki Kidaka, Abiko, JP;
Yuichi Makino, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A charging device includes a corona charger for electrically charging a photosensitive member; a sheet-like member for covering and uncovering an opening of the corona charger; a regulating member for regulating a shape of the sheet-like member so that the sheet-like member is convex toward the corona charger with respect to a circumferential direction of the photosensitive member; and a winding-up member, including a winding-up shaft around which the sheet-like member is to be wound up, for winding up the sheet-like member so that a surface of the sheet-like member opposing the corona charger is directed toward a winding-up center of the winding-up shaft when the sheet-like member is wound up by the winding-up shaft.