Xerox Corporation

Abukar H Wehelie

Huoy-Jen Yuh

John S Chambers

Harold F Hammond

Robert C U Yu

John Stephen Facci

Cindy C Chen

Helen R Cherniack

Michael Sanchez

Rachael L Mc Grath

A charge transport layer material for a photoreceptor includes at least a polycarbonate polymer binder having a number average molecular weight of not less than 35,000, at least one charge transport material, polytetrafluoroethylene particle aggregates having an average size of less than about 1.5 microns and a fluorine-containing polymeric surfactant dispersed in a solvent mixture of at least tetrahydrofuran and toluene. The dispersion is able to form a uniform and stable material ideal for use in forming a charge transport layer of a photoreceptor. The resultant charge transport layer exhibits excellent wear resistance against contact with an AC bias charging roll, excellent electrical performance, and delivers superior print quality.

Wear resistant charge transport layer with enhanced toner transfer efficiency, containing polytetrafluoroethylene particles

An imaging member includes a substrate, a charge generating layer, and a charge transport layer, wherein an external layer of the imaging member includes hydrophobic silica particles uniformly dispersed therein.

Low surface energy photoreceptors

A photoreceptor including: (a) a substrate; (b) a charge blocking layer including a plurality of light scattering particles dispersed in a binder, wherein the light scattering particles are composed of a core and a coating over the core, wherein the difference between the coating and the binder refractive index values is greater than the difference between the core and the binder refractive index values; and (c) an imaging layer.

Blocking layer with light scattering particles having coated core

A photoreceptor including: (a) a substrate; (b) a charge blocking layer including a plurality of light scattering particles dispersed in a binder, wherein the light scattering particles have a refractive index different from the binder and wherein the light scattering particles have a number average particle size greater than about 0.8 micrometer and have a surface roughness defined by a specific surface area greater than about 50 m.sup.2 /gm; and (c) an imaging layer.

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Webster, NY, United States of America

Abukar H Wehelie