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:
Feb. 03, 2004
Filed:
Jun. 07, 2002
Masahiko Yamada, Sakura, JP;
Kentaroh Matsumoto, Ichikawa, JP;
Hiroyuki Nagashima, Yokohama, JP;
Tokuya Ohjimi, Kawasaki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developing apparatus, an image formation apparatus and a process cartridge is provided. Even though the sealing materials of the initial developer container are stripped off in such a way that the process cartridge having the developing apparatus is tilted, the initial developer can be uniformly supplied along the central axis line of the developer carrier. The developing apparatus performs a self toner control and has an initial developer case for containing the non-used initial developer that is input into the developer containing space S. The initial developer case is divided internally into a plurality of partition spaces along the direction of the central axial line D of the developing sleeve so that a plurality of partitions is formed inside the initial developer case Based on the opening for inputting the initial developer, the partition surface F facing to the partition space of each partition is tilted from an imaginary plane G perpendicular to the central axial line D of the developing sleeve toward one end H along the direction of the central axial line D of the developing sleeve