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. 25, 2015
Filed:
Mar. 14, 2014
Hiroaki Umezawa, Kanagawa, JP;
Shiho Shimosaka, Tokyo, JP;
Katsunori Kume, Kanagawa, JP;
Koh Tokumaru, Tokyo, JP;
Osamu Kizaki, Saitama, JP;
Noboru Sugiura, Kanagawa, JP;
Norikazu Okada, Kanagawa, JP;
Atsuki Iwata, Tokyo, JP;
Keita Maejima, Kanagawa, JP;
Tomoyuki Yamashita, Tokyo, JP;
Hiroaki Umezawa, Kanagawa, JP;
Shiho Shimosaka, Tokyo, JP;
Katsunori Kume, Kanagawa, JP;
Koh Tokumaru, Tokyo, JP;
Osamu Kizaki, Saitama, JP;
Noboru Sugiura, Kanagawa, JP;
Norikazu Okada, Kanagawa, JP;
Atsuki Iwata, Tokyo, JP;
Keita Maejima, Kanagawa, JP;
Tomoyuki Yamashita, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A fixing control device includes an image detection unit that determines presence of an image in each of areas obtained by division of an image formation region in which the image is formed, a heater selection unit that selects from heaters of a fixing device heaters at positions corresponding to areas in which the presence of the image is determined, a heating amount computation unit that computes a heating amount of a heating area heated by each of the selected heaters in a fixing region corresponding to the image formation region, a change amount computation unit that computes an amount of change of the heating amount between adjoining ones of the heating areas, and a heating amount correction unit that corrects one of the heating amounts of the adjoining heating areas so that the amount of change after the correction is less than a predetermined threshold.