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. 02, 2008
Filed:
May. 02, 2006
Koji Suenami, Osaka, JP;
Eiji Nimura, Osaka, JP;
Hirohisa Endou, Osaka, JP;
Hiroyuki Hamakawa, Osaka, JP;
Yoshihiro Yamagishi, Osaka, JP;
Koji Suenami, Osaka, JP;
Eiji Nimura, Osaka, JP;
Hirohisa Endou, Osaka, JP;
Hiroyuki Hamakawa, Osaka, JP;
Yoshihiro Yamagishi, Osaka, JP;
Kyocera Mita Corporation, , JP;
Abstract
A developing device () includes a developing sleeve () for supplying toner particles (T) to a latent image area () on a peripheral surface of a photoconductive drum () while rotating about a central shaft (). The developing sleeve () has an immovable sleeve magnet () therein. Two magnetic members () are disposed in opposite end portions of the developing sleeve () and are spaced a predetermined distance from the peripheral surface of the developing sleeve. Each magnet member () has an arc shape. A magnetic member magnet () is mounted in the magnet member () and faces a sleeve magnet () so that opposite facing portions of the magnetic member magnet () and the sleeve magnet () have the same polarity. With this construction, toner particles are prevented from leaking from the end portions of the developing sleeve ().