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:
Oct. 26, 2010
Filed:
May. 10, 2006
Kayoko Tanaka, Tokyo, JP;
Kohta Fujimori, Yokohama, JP;
Shin Hasegawa, Zama, JP;
Shinji Kato, Kawasaki, JP;
Nobutaka Takeuchi, Yokohama, JP;
Naoto Watanabe, Atsugi, JP;
Yuushi Hirayama, Sagamihara, JP;
Hitoshi Ishibashi, Kamakura, JP;
Osamu Ariizumi, Yokohama, JP;
Takashi Enami, Chigasaki, JP;
Kazumi Kobayashi, Tokyo, JP;
Shinji Kobayashi, Atsugi, JP;
Fukutoshi Uchida, Kawasaki, JP;
Ryohta Morimoto, Ebina, JP;
Kayoko Tanaka, Tokyo, JP;
Kohta Fujimori, Yokohama, JP;
Shin Hasegawa, Zama, JP;
Shinji Kato, Kawasaki, JP;
Nobutaka Takeuchi, Yokohama, JP;
Naoto Watanabe, Atsugi, JP;
Yuushi Hirayama, Sagamihara, JP;
Hitoshi Ishibashi, Kamakura, JP;
Osamu Ariizumi, Yokohama, JP;
Takashi Enami, Chigasaki, JP;
Kazumi Kobayashi, Tokyo, JP;
Shinji Kobayashi, Atsugi, JP;
Fukutoshi Uchida, Kawasaki, JP;
Ryohta Morimoto, Ebina, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes a plurality of image carriers, an image forming mechanism, a seamless belt-like intermediate transfer body or a transfer material carrier, a detection mechanism, and an optical detecting apparatus. The optical detecting apparatus includes at least a printed board, and a plurality of photodetectors formed of a light-emitting element, a light-receiving element and light-shielding members, which are mounted on the printed board. The optical detecting apparatus is disposed such that it detects a belt surface adjacent to rollers of the intermediate transfer body or the transfer material carrier, and either displacement of a transfer image or image density is detected by a plurality of photodetectors detecting pattern images which are transferred from the plurality of image carriers to the image transfer body or the transfer material carrier.