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. 28, 2012
Filed:
May. 28, 2010
Noriaki Funamoto, Machida, JP;
Yasuhisa Ehara, Kamakura, JP;
Tetsuji Nishikawa, Machida, JP;
Yasuhiro Maehata, Sagamihara, JP;
Jun Yasuda, Matsudo, JP;
Hiroaki Murakami, Kawasaki, JP;
Noriaki Funamoto, Machida, JP;
Yasuhisa Ehara, Kamakura, JP;
Tetsuji Nishikawa, Machida, JP;
Yasuhiro Maehata, Sagamihara, JP;
Jun Yasuda, Matsudo, JP;
Hiroaki Murakami, Kawasaki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A multicolor imaging system includes a controller which adjusts a phase difference in rotations of photoreceptors based on information detected by a rotary position detector, and drive elements for photoreceptors which generate a velocity fluctuation in the same cycle as that of a transfer unit. The controller is configured to concurrently adjust the phases of the photoreceptors and those of the drive elements so that a registration error in four color toner image on an intermediate transfer belt is reduced to a minimum.