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. 18, 2012
Filed:
Jun. 17, 2010
Nobuyuki Kobayashi, Kanagawa, JP;
Natsuko Kawase, Kanagawa, JP;
Jun Kosako, Kanagawa, JP;
Shigeyuki Ishii, Kanagawa, JP;
Takahiro Kamekura, Kanagawa, JP;
Takahiro Miyakawa, Kanagawa, JP;
Takashi Enami, Kanagawa, JP;
Miyo Taniguchi, Kanagawa, JP;
Nobuyuki Kobayashi, Kanagawa, JP;
Natsuko Kawase, Kanagawa, JP;
Jun Kosako, Kanagawa, JP;
Shigeyuki Ishii, Kanagawa, JP;
Takahiro Kamekura, Kanagawa, JP;
Takahiro Miyakawa, Kanagawa, JP;
Takashi Enami, Kanagawa, JP;
Miyo Taniguchi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes an encoder that detects a first pulse signal relevant to a conveyance velocity of an intermediate transfer belt, an encoder that detects a second pulse signal relevant to a conveyance velocity of a transfer-paper conveying belt, a print control unit that performs feedback control by using a count value of the first pulse signal per unit time and a target conveyance velocity value common between the conveyance velocity of the intermediate transfer belt and that of the transfer-paper conveying belt so that the conveyance velocity of the intermediate transfer belt attains the target value and also performs feedback-control by using a count value of the second pulse signal per unit time and the target value so that the conveyance velocity of the transfer-paper conveying belt attains the target value.