Xerox Corporation

Bernard Grushkin

Thomas R Hoffend

Hadi K Mahabadi

Michael Steven Hawkins

Enno Eric Agur

Gerald R Allison

John G Ruhland

Stephan V Drappel

Guerino G Sacripante

Angelo J Barbetta

Maria N McDougall

Grazyna E Kmiecik-Lawrynowicz

Robert D Bayley

William H Hollenbaugh, Jr

Carol A Fox

Raj D Patel

T Brian McAneney

Michael A Hopper

Robert J Gruber

John S Berkes

Joo T Chung

Eugene Frederick Young

Douglas A Lundy

Hui Chang

Edward J Gutman

J Stephen Kittelberger

Sheau V Kao

Michael L Grande

Joseph R Matalevich

Peter Gordon Odell

Chieh-Min Cheng

Thomas W Smith

George Amos Gibson

Scott M Silence

Allan K Chen

Jacques C Bertrand

Melvin D Croucher

Steven B Bolte

K Derek Henderson

Michael J Duggan

Ronald J Koch

Louis V Isganitis

Raphael F Bov, Jr

Leonard M Carreira

Amy L Stamp

Edward J Radigan

Karen L Lamora

Edward Forest

Paul W Eakin

James R Paxson

Casimir J Mytych

Michael N Salzman

David E Hutka

Thomas D Cometa

An emulsion aggregation toner particularly adapted for use in hybrid scavengeless development includes toner particles of polymer binder, colorant and a surface additive package containing at least one additive negatively chargeable to a carrier and at least one additive positively chargeable to the carrier. The toner is able to exhibit high stable triboelectric charging ability, and substantially eliminates charge through and slow admix in a developer employing the toner.

Emulsion aggregation toner particles coated with negatively chargeable and positively chargeable additives and method of making same

Toners are described which include one or more copolymers combined with colorant particles or primary toner particles. Processes for preparing the toners are also disclosed.

Method of making toners

A toner comprised of resin, colorant and a surface additive mixture comprised of two coated silicas, and a coated metal oxide.

Toner and developer compositions

The use of a mixture of hard and soft magnetites as well as a lubricating wax in the formulation of single component developers is disclosed. The mixture allows for sufficient high remenance for MICR applications without high levels of magnetite loadings that can adversely affect the toner rheological properties and at the same time reduce sorter image abrasion.

Single development toner for improved MICR

A toner composition comprised of a polyester resin with hydrophobic end groups, colorant, optional wax, optional charge additive, and optional surface additives.

A toner composition comprised of a polyester resin with hydrophobic end groups, pigment, optional wax, optional charge additive, and optional surface additives.

A process for the preparation of negatively charged toner comprising:

Processes for producing negatively charged toner

Processes for low melt crosslinked toner resins and toner

A process for the preparation of liquid developers comprising:

Liquid developers and toner aggregation processes

Toner aggregation processes

A toner comprised of resin particles, magnetite, carbon black, rhodamine charge additive, wax, and a surface mixture of silica, strontium titanate and polyvinylidene fluoride.

Magnetic toner compositions with silica, strontium titanate and

A process for the preparation of a crosslinked polyester which comprises the reaction of a diol or a mixture of diols and a diacid, a mixture of diacids or their diesters and a polyhydric alcohol monomer to provide a polyhydroxy functional polyester resin precursor, and subsequently reacting said polyhydroxy functional polyester precursor resin with a dianhydride or diepoxy functional crosslinking component.

Polyester processes for the preparation of toner

A toner comprised of resin particles, magnetite, carbon black, rhodamine charge additive, wax, and a surface mixture of aluminum oxide, strontium titanate and polyvinylidene fluoride.

Magnetic toner compositions with aluminum oxide, strontium titanate and

Low fix temperature toner resins are fabricated by a reactive melt mixing process wherein polymer resins are cross-linked at high temperature and high shear. The resins are particularly suitable for high speed fusing, show excellent offset resistance and wide fusing latitude and superior vinyl offset properties.

Reactive melt mixing process for preparing cross-linked toner resins and

Growing community of inventors

Pittsford, NY, United States of America

Bernard Grushkin