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:
Jul. 30, 1996
Filed:
May. 13, 1993
Mamoru Watanabe, Kawasaki, JP;
Michihiro Fujii, Hyogo, JP;
Hideyuki Nanba, Kawasaki, JP;
Masato Kawashima, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The invention relates to a developer cartridge for exchanging developers in an apparatus which develops an electrostatic latent image, and an image forming apparatus using the developer cartridge. The developer cartridge has a first storage room for unused developer, a second storage room under the first room for storing used developer, openings in the first and second rooms and shutters provided therewith, together with a paddling mechanism in the first storage room for moving unused developer. The image forming apparatus has an endless latent carrier, a mechanism for forming an electrostatic latent image on the carrier and a mechanism for developing the latent image on the carrier. The developer cartridge is detachable positioned to the developing mechanism and a mechanism is provided for driving the shutters of the developer cartridge for exchanging used developer with unused developer.