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. 13, 2007
Filed:
Oct. 14, 2003
Satoshi Matsuzaka, Ebina, JP;
Keiji Yamamoto, Ebina, JP;
Satoru Torimaru, Ebina, JP;
Takashi Kawabata, Ebina, JP;
Masaaki Takahashi, Ebina, JP;
Yoko Miyamoto, Ebina, JP;
Kiyotoshi Kaneyama, Ebina, JP;
Katsunori Kikuchihara, Ebina, JP;
Satoshi Matsuzaka, Ebina, JP;
Keiji Yamamoto, Ebina, JP;
Satoru Torimaru, Ebina, JP;
Takashi Kawabata, Ebina, JP;
Masaaki Takahashi, Ebina, JP;
Yoko Miyamoto, Ebina, JP;
Kiyotoshi Kaneyama, Ebina, JP;
Katsunori Kikuchihara, Ebina, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An image forming apparatus registers both sides of sheets with great precision in a sheet transportation direction in both-side image formation. The image forming apparatus includes: photoconductive drums holding toner images; an intermediate transfer belt temporarily holding the toner images; a secondary transfer roll that transfers the toner images to a sheet in a transfer unit; a registration roll rotating toward the transfer unit being in sheet feeding timing; a fixing unit fixing the toner images transferred to a first side of the sheet; reversion transportation paths reversing the sheet and again transporting the sheet to the transfer unit; a first sensor detecting the image of the first side of the sheet; and a second sensor that detects the toner images held in the intermediate transfer belt.