Xerox Corporation

Nancy S Hunt

Vincenzo G Marcello

Tie Hwee Ng

Richard P N Veregin

Cuong Vong

Michael Steven Hawkins

Allan K Chen

Vladislav Skorokhod

David R Kurceba

Christine Deborah Anderson

Dennis A Mattison, Jr

Cheih-Min Cheng

Steven A VanScott

Karen Ann Moffat

Chieh-Min Cheng

Daryl Walter Vanbesien

Juan A Morales-Tirado

William H Hollenbaugh, Jr

Emily Louise Moore

Louis V Isganitis

Eric M Strohm

Thomas Paul Debies

Liam S Cummings

Richard Fong

Dawn M Jacobs

Richard Pn Veregin

Steven A Vanscott

Dennis A Mattison

Dennis A Mattison Jr

Disclosed herein are emulsion aggregation toner particles having less than about 15 atomic percent oxygen in relation to a total atomic percent of 100 for all elements on the surface thereof. Such toner particles exhibit lower marks on print defects.

Toner compositions

Toner including toner particles having a calcium-containing material at least in a surface portion of the toner particle, wherein the toner particles contain calcium in an amount of from 20 ppm to about 300 ppm of calcium by dry weight of the toner. Developer including a carrier and a toner, wherein the toner includes toner particles having a calcium-containing material at least in a surface portion of the toner particles. In an emulsion aggregation process for making toner particles, the toner particles are treated with calcium. The addition of calcium to the toner particles improves toner performance by lowering cohesion and charging, thereby generating an image of high gloss.

Emulsion aggregation high-gloss toner with calcium addition

A toner having a core with a first latex having a specific glass transition temperature, and further having a shell surrounding the core with a second latex having a specific glass transition temperature, and processes for producing the same.

Toner composition

Single component toners having a core with a first latex having a specific glass transition temperature and molecular weight, further having a shell surrounding the core with a second latex having a specific glass transition temperature and molecular weight, and additives added thereto, and processes for producing the same. In embodiments, the toner is a non-magnetic single component toner produced by emulsion aggregation methods.

Disclosed is an oil-less toner composition exhibiting good low temperature release and stripping in fixing, enhanced surface gloss of fixed image, and/or OHP transparency. By controlling one or more properties, such as the relative thermal energy input during the EA aggregation/coalescence process, using a wax having a certain dispersion size (D50), molecular weight and/or melting temperature, the toner particle produced thereby can achieve optimal surface wax protrusion with a surface wax content of about 12 to about 25 weight percent. This is based on the total amount of wax in the toner, as determined by x-ray photoelectron spectroscopy (XPS). The contamination of wax on developing rolls, photoreceptor and carriers, which lowers the reliability of the developer, is suppressed with the present exemplary embodiment.

Toners and processes thereof

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Ontario, NY, United States of America

Nancy S Hunt