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:
Aug. 14, 2007
Filed:
Jul. 19, 2004
Masato Yokoyama, Yokohama, JP;
Nobuto Yokokawa, Kawaguchi, JP;
Toshiyuki Ando, Sagamihara, JP;
Kazuhiko Kobayashi, Ota-ku, JP;
Tadashi Shinohara, Yokohama, JP;
Yuuji Matsuda, Inagi, JP;
Jun Hosokawa, Shinagawa-ku, JP;
Yohhei Miura, Kawasaki, JP;
Toshiyuki Takahashi, Kawasaki, JP;
Hiromichi Matsuda, Kanagawa-ken, JP;
Masato Yokoyama, Yokohama, JP;
Nobuto Yokokawa, Kawaguchi, JP;
Toshiyuki Ando, Sagamihara, JP;
Kazuhiko Kobayashi, Ota-ku, JP;
Tadashi Shinohara, Yokohama, JP;
Yuuji Matsuda, Inagi, JP;
Jun Hosokawa, Shinagawa-ku, JP;
Yohhei Miura, Kawasaki, JP;
Toshiyuki Takahashi, Kawasaki, JP;
Hiromichi Matsuda, Kanagawa-ken, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus including an image carrying member, a transfer member, support rollers, a detecting mechanism, and a controller. The image carrying member forms a toner image on its surface facing a surface of the transfer member, supported by the support rollers, which transfers the toner image to a recording medium. The detecting mechanism includes a detection roller, a roller shaft, a moving member, and a sensor, and detects a speed of the transfer member. The detection roller includes one support roller selected from the support rollers, and is provided with the roller shaft. The moving member is directly fixed to the roller shaft and rotates with the detection roller. The sensor detects a moving speed of the detection roller with the moving member. The controller controls a traveling speed of the transfer member to a target speed based on a detection result of the sensor.