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. 24, 2013
Filed:
Jun. 17, 2011
Hirotaka Ishii, Suntou-gun, JP;
Hirotaka Ishii, Suntou-gun, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A color electrophotographic image forming apparatus for forming a color image on a recording material, the apparatus includes a main assembly; a drum cartridge including an electrophotographic photosensitive drum and detachably mountable to the main assembly of the apparatus of an electrophotographic image forming apparatus; a plurality of developing cartridges each comprising a developing roller for developing an electrostatic latent image formed on electrophotographic photosensitive drum of the drum cartridge mounted to the main assembly; a main assembly side drum cartridge guide for guiding the drum cartridge; a main assembly side drum cartridge positioning portion for positioning the drum cartridge to the main assembly of the apparatus; wherein the drum cartridge is provided with a positioning portion for positioning the developing cartridge relative to the drum cartridge with respect to an entering direction of the developing cartridge, and the developing cartridge is provided with insertion guide means for guiding insertion of a developing cartridge right thereabove.