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. 21, 2006
Filed:
Oct. 05, 2004
Isao Koishi, Shizuoka, JP;
Akiyoshi Fujita, Shizuoka, JP;
Takahito Ueno, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A process cartridge detachably mountable to an electrophotographic image forming apparatus main body, including: an electrophotographic photosensitive drum; a cleaning member for removing developer adhering to the photosensitive drum; a removed developer containing portion for containing the developer removed by the cleaning member; a filter member mounted to the removed developer containing portion for allowing ventilation between the interior and exterior of the removed developer containing portion; a recess provided on the removed developer containing portion and covered with the filter member; and a communicating portion provided on the removed developer containing portion for communicating between the interior of the removed developer containing portion and the recess to ventilate therebetween.