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. 15, 2011
Filed:
Oct. 12, 2006
Development apparatus and image forming apparatus using toner carrier with a plurality of electrodes
Takeo Tsukamoto, Kanagawa, JP;
Nobuaki Kondoh, Kanagawa, JP;
Masanori Horike, Kanagawa, JP;
Tomoko Takahashi, Kanagawa, JP;
Masaaki Yamada, Tokyo, JP;
Hideki Kosugi, Kanagawa, JP;
Ichiro Kadota, Kanagawa, JP;
Yoshinori Nakagawa, Kanagawa, JP;
Yasuyuki Ishii, Tokyo, JP;
Takeo Tsukamoto, Kanagawa, JP;
Nobuaki Kondoh, Kanagawa, JP;
Masanori Horike, Kanagawa, JP;
Tomoko Takahashi, Kanagawa, JP;
Masaaki Yamada, Tokyo, JP;
Hideki Kosugi, Kanagawa, JP;
Ichiro Kadota, Kanagawa, JP;
Yoshinori Nakagawa, Kanagawa, JP;
Yasuyuki Ishii, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An apparatus for developing a latent image on a latent image carrier includes a toner carrier and multiple electrodes arranged at intervals on a surface of the toner carrier. A potential difference is formed between even-numbered electrodes and odd-numbered electrodes of the electrodes by applying a first pulse voltage to the even-numbered electrodes and a second pulse voltage to the odd-numbered electrodes so that toner on the surface of the toner carrier moves back and forth between the electrodes, where the first and second pulse voltages are in different phases, and the toner moving back and forth between the electrodes is conveyed to a position facing the latent image carrier by movement of the surface of the toner carrier and thereby caused to adhere to the latent image on the latent image carrier.