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:
Sep. 11, 1990
Filed:
Feb. 09, 1989
Keiichi Akiyama, Iwate, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a cleaning system for an image forming apparatus wherein the cleaning performance thereof will not be deteriorated by, will be substantially free from a change of the environment therearound and damage to a photosensitive member of the image forming apparatus is minimized in order to improve the life of the photosensitive member. The cleaning system comprises a conductive cleaning brush for slidably contacting with the photosensitive member to remove toner powder remaining on the photosensitive member. Toner powder remaining on the photosensitive member after transfer of a visible toner powder image therefrom is first charged to a fixed polarity, using a DC corona discharge or the like and then the photosensitive member is slidably contacted by the conductive cleaning brush to which a bias voltage of the polarity opposite to the polarity of the charge on the toner powder is applied so that the remaining toner powder is mechanically and electrostatically removed from the photosensitive member by the conductive cleaning brush.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile