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:
May. 07, 2002
Filed:
Nov. 28, 2000
Rieko Kataoka, Minamiashigara, JP;
Susumu Yoshino, Minamiashigara, JP;
Akihiro Iizuka, Minamiashigara, JP;
Koutarou Yoshihara, Minamiashigara, JP;
Haruhide Ishida, Minamiashigara, JP;
Tetsuya Taguchi, Minamiashigara, JP;
Fumiaki Mera, Minamiashigara, JP;
Hiroshi Takano, Minamiashigara, JP;
Yasuhiro Oya, Minamiashigara, JP;
Michio Take, Minamiashigara, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A full color electrophotographic toner including toner particles containing at least a binder resin, a colorant and a wax, and external additives, at least one of the external additives being rutile titanium oxide having a volume resistivity of 1×10 to 1×10 &OHgr;cm, and a dispersion absolute deviation a of rutile titanium oxide being 0.17 or less, and a full color electrophotographic developer and an image forming method using the same are provided. In the full color electrophotographic toner, the full color electrophotographic developer and the image forming method of the invention, a retransfer phenomenon of the transferred toner can be prevented, a chargeability and a transferability are not problematic at all, a charging amount of the toner in long-term use can be rendered appropriate and stable, and a fluidity is also excellent.