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:
Mar. 08, 2011
Filed:
Feb. 07, 2008
Susumu Tateyama, Tokyo, JP;
Yoshitaka Fujinuma, Tokyo, JP;
Masayoshi Nakayama, Tokyo, JP;
Tatsuya Kubo, Tokyo, JP;
Susumu Tateyama, Tokyo, JP;
Yoshitaka Fujinuma, Tokyo, JP;
Masayoshi Nakayama, Tokyo, JP;
Tatsuya Kubo, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developing unit containing developer including carrier and toner and developing a latent image formed on an image carrier is disclosed. The developing unit includes multiple conveyor members configured to convey the contained developer in respective longitudinal directions so as to form a circulation channel; a supply part configured to supplement the carrier in the developing unit; a discharge part configured to discharge a first part of the contained developer outside the developing unit; and a bypass channel configured to cause a second part of the developer to return to the upstream side of the circulation channel without passing a position where the discharge part is provided.