Nashua Corporation

Albert W Leclair

James W Boswell

Jeffrey L Clark

An improved toner for use in electrostatic copying processes is described. The toner, which exhibits high fixing ability at low temperatures, includes a binder resin, a colorant, and a silicone wax release agent. A method for reducing or preventing offset in a toner and increasing the lubricity of the toner is also described. The method comprises combining the silicone wax release agent and the colorant with the binder resin to form the toner.

Toner containing a silicone wax release agent

A toner composition is disclosed capable of developing electrostatically charged images formed on an electrophotographic member, comprising styrene-based resin particles, pigment particles, a charge-control agent and an ethylenebisamide compound. The toner has superior grinding, lubricating and anti-offset properties.

Toner composition containing ethylene bisamide compounds

Disclosed are toner compositions which comprise a toner particle having cleaning and lubricating agents added externally thereto. The cleaning and lubricating agents improve copy quality and extend the developer lifetime as they are electrically compatible with the toner particles over the duration of the developer lifetime. The external lubricating additive comprises a modified wax component having a relatively small percentage of a charge enhancing additive dissolved in a low molecular weight wax material. Optionally, the external additive may comprise amorphous silica particles and magnetite particles.

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Hudson, NH, United States of America

Albert W Leclair