Fuji Xerox Co., Ltd.

Teigen Lee

Hiroyuki Tanaka

Akira Matsumoto

Hiroyoshi Okuno

Hirotaka Matsuoka

Seiichi Takagi

Yutaka Sugizaki

Tsutomu Kubo

Kazufumi Tomita

Yuusaku Shibuya

A toner for developing an electronic latent image, including toner particles containing a binder resin and a colorant, and an external additive, is provided. The external additive contains silica formed by a sol-gel method of which the surface is subjected to hydrophobic treatment and which has an average primary particle size of 80 to 300 nm, a water content of 3 to 15% and a volume resistivity of 1&times;10 &OHgr;cm or more. The invention further provides an image forming method and an image forming apparatus using the same. The toner for developing an electrostatic latent image is good in transferability over a long period of time and gives a high image quality without causing an image defect.

Toner for developing electrostatic latent image, image forming method and image forming apparatus using the same

An electrophotographic toner excellent in coloring property, fixing property, OHP transmittance and charging property, a process for producing the same, and a two-component developer are provided. The electrophotographic toner contains at least a binder resin, a colorant, a releasing agent and inorganic fine particles, in which the toner has a conglobation degree of about from 100 to 130, the releasing agent has an average particle diameter of about from 0.1 to 1 &mgr;m, a ratio of a major axis and a minor axis of about from 1.1 to 10, and the inorganic particles are dispersed in the toner particles.

Electrophotographic toner, process for preparing the same, and two-component developer

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Minami-ashigara, Japan

Teigen Lee