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:
Jul. 02, 2019
Filed:
Mar. 08, 2018
Fuji Xerox Co., Ltd., Tokyo, JP;
Tatsuhiro Igarashi, Kanagawa, JP;
Manabu Furuki, Kanagawa, JP;
Naoki Ota, Kanagawa, JP;
Makoto Kamisaki, Kanagawa, JP;
Yasuhisa Morooka, Kanagawa, JP;
Jun Sekiya, Kanagawa, JP;
FUJI XEROX CO., LTD., Tokyo, JP;
Abstract
An image forming apparatus includes an image holding member, a charging device, an electrostatic charge image forming device, a developing device having a toner, a transfer device, and a fixing device, wherein the fixing device includes a fixing belt, a rotational member, and a heater; the toner contains an amorphous polyester resin as a binder resin; and the toner has a weight average molecular weight Mw and a number average molecular weight Mn, Mw is from 25000 to 60000, and Mw/Mn is from 5 to 10, and has an infrared absorption spectrometry, the ratio of absorbance for a wavelength of 1500 cmto absorbance for a wavelength of 720 cmis 0.6 or less, and the ratio of absorbance for a wavelength of 820 cmto absorbance for a wavelength of 720 cmis 0.4 or less.