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:
May. 01, 2007
Filed:
Sep. 20, 2004
Kazuhisa Sudo, Kanagawa, JP;
Kazuyuki Sugihara, Kanagawa, JP;
Hideo Yoshizawa, Saitama, JP;
Katsumi Masuda, Tokyo, JP;
Hideki Kimura, Kanagawa, JP;
Kiyotaka Sakai, Kanagawa, JP;
Tsuyoshi Imamura, Kanagawa, JP;
Kazuhisa Sudo, Kanagawa, JP;
Kazuyuki Sugihara, Kanagawa, JP;
Hideo Yoshizawa, Saitama, JP;
Katsumi Masuda, Tokyo, JP;
Hideki Kimura, Kanagawa, JP;
Kiyotaka Sakai, Kanagawa, JP;
Tsuyoshi Imamura, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus whereby it is possible to prevent unevenness in developing density caused by misalignment between the central axes of a driven side rotational coupling section for rotating a developer carrier and a drive side rotational coupling section for transmitting rotational drive force to the driven side rotational coupling section. The driven side rotational coupling section is fixed and the position thereof can be corrected slightly, by engaging the driven side rotational coupling section with a drive side rotational coupling section. A transmission gear is provided which meshes with the driven side rotational coupling section and transmits rotational drive force used to move the surface of the developer carrier. By means of an axle provided on at least one end of the transmission gear engaging with a positioning member on the main body of the image forming apparatus, the developer carrier is positioned in the main body of the image forming apparatus.