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:
Dec. 03, 2019
Filed:
Aug. 27, 2018
Fuji Xerox Co., Ltd., Tokyo, JP;
Yasuhisa Morooka, Kanagawa, JP;
Naoki Ota, Kanagawa, JP;
Makoto Kamisaki, Kanagawa, JP;
Tatsuhiro Igarashi, Kanagawa, JP;
Jun Sekiya, Kanagawa, JP;
FUJI XEROX CO., LTD., Tokyo, JP;
Abstract
An image forming apparatus includes an image holding member; a charging unit; an electrostatic image forming unit; a developing unit; a transfer unit; and a fixing unit that fixes the toner image on the recording medium. The toner has an amorphous polyester resin and has a weight-average molecular weight Mw in a range of 25,000 to 60,000, a ratio Mw/Mn is within a range of 5 to 10, a ratio of an absorbance at a wavenumber of 1500 cmto an absorbance at a wavenumber of 720 cmis 0.6 or less, and a ratio of an absorbance at a wavenumber of 820 cmto the absorbance at a wavenumber of 720 cmis 0.4 or less. The fixing unit includes a heat roll having an elastic component, an endless belt and a pressure pad that is disposed on an inner side of the endless belt.