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:
Dec. 30, 2014
Filed:
Aug. 12, 2011
Keigo Nakamura, Kanagawa, JP;
Haruo Iimura, Kanagawa, JP;
Shinji Aoki, Kanagawa, JP;
Yasuhiko Ogino, Kanagawa, JP;
Keigo Nakamura, Kanagawa, JP;
Haruo Iimura, Kanagawa, JP;
Shinji Aoki, Kanagawa, JP;
Yasuhiko Ogino, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A transfer device includes an image carrier that carries a toner image; a nip forming member that forms a transfer nip between the nip forming member and the image carrier by contacting with a front surface of the image carrier; and a transfer bias applying unit that applies a transfer bias, thereby transferring the toner image carried on the image carrier to a recording material at a position of the transfer nip. The transfer bias applying unit applies the transfer bias in which an AC component and a DC component are superimposed and in which a peak-to-peak voltage of the AC component is larger than 6 times an absolute value of a voltage of the DC component.