Fuji Xerox Co., Ltd.

Masao Mochizuki

Takayoshi Aoki

Ikutaroh Nagatsuka

Yasuo Matsumura

Chiaki Suzuki

Koichi Kumashiro

Seiichi Takagi

Toshiyuki Yano

Yuka Ishihara

Masayuki Takeda

Atuhiko Eguchi

Masayoshi Shinoki

A dry toner for developing an electrostatic latent image comprising toner particles and fine particles of a lubricant coated with an inorganic compound fine powder and an image formation method using the same. The toner is excellent in fluidity, cleaning properties, stability with environmental changes, and durability.

Dry tower for developing electrostatic image, process for producing

A toner composition for thermal fixing is disclosed, comprising a colorant, an external additive and a binder resin that contains a thermoplastic resin having a glass transition point of from 20.degree. C. to less than 50.degree. C. and a polyolefin polymer having an average molecular weight of 800 or more, the polyolefin polymer being present in an amount of from 5 wt % to less than 50 wt % of the total binder resin.

Toner composition with polyethylene and inorganic external additive

A magnetic powder-dispersed carrier for use in electrophotography, electrostatic printing, and other reprographic methods, comprising a large number of magnetic particles dispersed in a binder resin, the particles having a BET surface area no greater than 5 m.sup.2 /g, and an oil-absorbing capacity of no more than 25 ml/100 g.

Carrier of a magnetic powder dispersed type

A negative charging carrier for an electrophotographic developer is described, comprising a binder resin having dispersed therein a magnetic powder, wherein said carrier contains a fluorine-containing resin fine powder in an amount of from 5 to 50% by weight based on the total weight of the carrier. The carrier provides a developer for magnetic brush development having a prolonged life and a high rate of development.

Carrier for electrophotographic developer

Growing community of inventors

Kanagawa, Japan

Masao Mochizuki