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:
Jan. 15, 2019
Filed:
Jul. 26, 2017
Fuji Xerox Co., Ltd., Tokyo, JP;
Masataka Kuribayashi, Kanagawa, JP;
Masahiro Uchida, Kanagawa, JP;
Takafumi Koide, Kanagawa, JP;
Yusuke Fukuda, Kanagawa, JP;
Katsuyuki Kitajima, Kanagawa, JP;
Koji Funaba, Kanagawa, JP;
Satomi Hara, Kanagawa, JP;
Kana Yoshida, 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 development unit, a transfer unit; a fixing unit, and a cleaning unit. A toner for electrostatic image development contains a binder resin containing an amorphous resin and a crystalline resin, and paraffin wax. The toner has a volume-average particle diameter of 6 μm to 9 μm, a shape factor SF1 of 140 or more, and a toluene insoluble content within a range of 25% to 40%. The melting temperature of the paraffin wax is 60° C. or more and 80° C. or less. The absolute value of difference between the melting temperature of the crystalline resin and the melting temperature of the paraffin is 10° C. or less.