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:
Oct. 18, 2011
Filed:
Jun. 04, 2007
Tatsuya Kubo, Tokyo-to, JP;
Yoshitaka Fujinuma, Tokyo-to, JP;
Takashi Suzuki, Tokyo-to, JP;
Susumu Tateyama, Tokyo-to, JP;
Tsutomu Nakagawa, Tokyo-to, JP;
Masayoshi Nakayama, Tokyo-to, JP;
Tatsuya Kubo, Tokyo-to, JP;
Yoshitaka Fujinuma, Tokyo-to, JP;
Takashi Suzuki, Tokyo-to, JP;
Susumu Tateyama, Tokyo-to, JP;
Tsutomu Nakagawa, Tokyo-to, JP;
Masayoshi Nakayama, Tokyo-to, JP;
Ricoh Co., Ltd., Tokyo, JP;
Abstract
A development apparatus includes a first developer chamber configured to store and supply the developer, a first developer bearer configured to convey the developer supplied from the first developer chamber to a first development domain, defined by a portion of the first developer bearer facing a latent image bearer, to develop the latent image, a second developer bearer configured to convey the developer passed through the first development domain to a second development domain, defined by a portion of the second developer bearer facing the latent image bearer, to develop the latent image, a second developer chamber configured to recover the developer passing through the second development domain and store the recovered developer, and a transfer prevention member provided between the second developer chamber and the second developer bearer to reduce a transfer of the developer from the second developer chamber to the second developer bearer.