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. 30, 2003
Filed:
Sep. 27, 2001
Applicant:
Inventors:
Junichi Matsumoto, Ohta-ku, JP;
Nobuo Kasahara, Ohta-ku, JP;
Nobuo Iwata, Ohta-ku, JP;
Satoshi Muramatsu, Ohta-ku, JP;
Tomoyuki Ichikawa, Ohta-ku, JP;
Yoshio Hattori, Ohta-ku, JP;
Tomotoshi Nakahara, Ohta-ku, JP;
Takaaki Yanagisawa, Ohta-ku, JP;
Masumi Sato, Ohta-ku, JP;
Kouta Fujimori, Ohta-ku, JP;
Kazuhisa Sudo, Ohta-ku, JP;
Assignee:
Ricoh Company, Ltd, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 1/508 ;
U.S. Cl.
CPC ...
G03G 1/508 ;
Abstract
The toner supply unit is provided with a preventing unit for preventing toner contamination due to toner leakage from that sealing valve. A mouth ring of the toner container is provided with the sealing valve. This valve is opened/closed by removing/inserting a nozzle.