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. 26, 2013
Filed:
Aug. 27, 2009
Hidetaka Noguchi, Hyogo, JP;
Toshiyuki Andoh, Kanagawa, JP;
Takashi Hodoshima, Kanagawa, JP;
Seiji Hoshino, Kanagawa, JP;
Takashi Hashimoto, Kanagawa, JP;
Hidetaka Noguchi, Hyogo, JP;
Toshiyuki Andoh, Kanagawa, JP;
Takashi Hodoshima, Kanagawa, JP;
Seiji Hoshino, Kanagawa, JP;
Takashi Hashimoto, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A transfer roller lies opposite to a supporting roller across an image carrying belt and abuts against the outer surface of the image carrying belt to form a transfer nip. A driving force transmission unit transmits driving force from a driving source to a driving roller. A drive control unit performs drive control of the driving source. A feedforward control unit performs feedforward control on the driving source via the drive control unit. An entry detecting unit detects entry of a sheet in the transfer nip. The feedforward control unit considers an entry detection signal output by the entry sensor as a trigger for performing feedforward control after a predetermined time.