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:
Aug. 10, 1993
Filed:
Sep. 18, 1992
Applicant:
Inventors:
Miki Demoto, Nara, JP;
Katsuzo Uchida, Nara, JP;
Keiji Kato, Nara, JP;
Naoyuki Yamane, Yamatokoriyama, JP;
Yasuo Imai, Nara, JP;
Hisashi Kunihiro, Tenri, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
118653 ; 355245 ; 222D / ;
Abstract
A developer cartridge is provided to prevent toner from overflowing a toner hopper into a development tank, and to prevent a toner supply roller from being deformed by heavy pressure. In order to achieve the object, the developer cartridge is provided with a seal member (8) in the toner hopper (2). The seal member has one end blocking a toner supply port (9) and the other end secured to a rotary shaft (7a) of an agitating member (7). The seal member is rolled up by rotating the agitating member when using the cartridge for the first time.