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. 25, 2020
Filed:
Feb. 04, 2019
Ryohei Matsuda, Kanagawa, JP;
Takamasa Hase, Tokyo, JP;
Daisuke Inoue, Tokyo, JP;
Teppei Kawata, Kanagawa, JP;
Akio Takei, Shizuoka, JP;
Ryohei Matsuda, Kanagawa, JP;
Takamasa Hase, Tokyo, JP;
Daisuke Inoue, Tokyo, JP;
Teppei Kawata, Kanagawa, JP;
Akio Takei, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A fixing method is provided including the step of fixing a toner on a recording medium with a fixing device. The toner has a binder resin, a colorant, and a release agent, and has a release agent amount indicator of from 0.01 to 0.20. The release agent amount indicator is represented by a ratio (P/P) of an intensity (P) at a wave number of 2,850 cmto an intensity (P) at a wave number of 828 cmof the toner measured by a Fourier transform infrared spectroscopy attenuated total reflection method. The fixing device includes a fixing rotator driven to rotate by a driving source, a pressure rotator driven to rotate by rotation of the fixing rotator, a fixing belt interposed between the fixing rotator and the pressure rotator, and a heater to heat the fixing belt.