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:
Apr. 05, 2016
Filed:
Aug. 01, 2014
Takuya Suganuma, Kanagawa, JP;
Jun Yura, Kanagawa, JP;
Takeshi Uchitani, Kanagawa, JP;
Masaki Sukesako, Ibaraki, JP;
Hiroki Ishii, Kanagawa, JP;
Hironobu Takeshita, Kanagawa, JP;
Shogo Kezuka, Tokyo, JP;
Takuya Suganuma, Kanagawa, JP;
Jun Yura, Kanagawa, JP;
Takeshi Uchitani, Kanagawa, JP;
Masaki Sukesako, Ibaraki, JP;
Hiroki Ishii, Kanagawa, JP;
Hironobu Takeshita, Kanagawa, JP;
Shogo Kezuka, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes a fixing member, a pressing member, heat generators, temperature detectors, a power source, and a heat controller. The heat generators include a first heat generator and second heat generators corresponding to an imaged area and a blank area, respectively, of a recording medium. The heat controller controls a power source according to data provided by the temperature detectors, such that a heating area of the fixing member heated by one of the second heat generators located adjacent to the first heat generator acquires a temperature of T−ΔT, where Tis a temperature corresponding to the imaged area higher than a temperature Tcorresponding to the blank area, and ΔT is a temperature lower than a difference between Tand T. The heat controller changes ΔT between when a first side thereof is printed upon duplex printing and upon single-sided printing.