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. 26, 2006
Filed:
Sep. 22, 2003
Sadayuki Iwai, Tokyo, JP;
Tomoko Takahashi, Tokyo, JP;
Ayako Iino, Tokyo, JP;
Yoshinori Nakagawa, Tokyo, JP;
Hideki Kosugi, Tokyo, JP;
Sadayuki Iwai, Tokyo, JP;
Tomoko Takahashi, Tokyo, JP;
Ayako Iino, Tokyo, JP;
Yoshinori Nakagawa, Tokyo, JP;
Hideki Kosugi, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A charge removing unit is provided in order to control the surface potential of an image bearing element by removing charge from a surface of the image bearing element before a toner image is transferred from the image bearing element to a transfer medium. Surface potential controlling units are provided upstream of a contact area between the image bearing element and the transfer medium in order to control the surface potential of the transfer medium so that a toner on the image bearing element does not shift to the transfer medium.