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:
Mar. 20, 2001
Filed:
Mar. 06, 2000
Yasuhiro Oya, Minamiashigara, JP;
Susumu Yoshino, Minamiashigara, JP;
Masanobu Ninomiya, Minamiashigara, JP;
Hirokazu Hamano, Minamiashigara, JP;
Kaori Oishi, Minamiashigara, JP;
Tetsuya Taguchi, Minamiashigara, JP;
Koutarou Yoshihara, Minamiashigara, JP;
Fuji Xerox Co., LTD, Tokyo, JP;
Abstract
Provided is a toner having good offset resistance and capable of giving non-glaring, high-quality images with high OHP transparency, and a method of image formation with it. The toner includes at least a binder resin, a colorant and a wax. The THF soluble component of the toner, as analyzed through gel permeation chromatography, has a number-average molecular weight falling between 2500 and 5500, a weight-average molecular weight falling between 13000 and 25000, and a peak molecular weight falling between 5000 and 15000, and contains a fraction having a molecular weight of at least 10,in a ratio of at most 10% by weight of the component and a fraction having a molecular weight of at least 10,in a ratio of from 30 to 70% by weight of the component, and the wax in the toner has a DSC endothermic peak falling between 50 and 120° C.