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:
Feb. 21, 2006
Filed:
Sep. 15, 2004
Tsuneo Kurotori, Tokyo, JP;
Tsutomu Sasaki, Kanagawa, JP;
Mie Yoshino, Kanagawa, JP;
Noriyasu Takeuchi, Kanagawa, JP;
Tohru Nakano, Kanagawa, JP;
Yusuke Takeda, Kanagawa-ken, JP;
Tsuneo Kurotori, Tokyo, JP;
Tsutomu Sasaki, Kanagawa, JP;
Mie Yoshino, Kanagawa, JP;
Noriyasu Takeuchi, Kanagawa, JP;
Tohru Nakano, Kanagawa, JP;
Yusuke Takeda, Kanagawa-ken, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An excess toner removal area is made broader over the whole area with respect to a developer applied area that is broader than an image effective area. Thereby a liquid developer, that tends to spread slightly broader than the applied area after being applied to a photoreceptor drum, is removed by a sweep roller that can sweep excess toner present in an area broader than the original applied area and an excess toner remaining area is then prevented from being formed on the photoreceptor drum. Accordingly, the excess toner on the latent image carrier is removed as much as possible, and a transfer medium and peripheral members are prevented from being soiled due to residual excess toner.