Andrew R Melnyk

US Patent:

6406823, Jun 18, 2002

Filed:

Dec 13, 2000

Appl. No.:

09/736108

Inventors:

Andrew R. Melnyk - Rochester NY
Paul A. Harmer - Ontario NY
Kathleen M. Carmichael - Williamson NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 1301

US Classification:

430 46, 430 54

Abstract:

A photoreceptor including: a charge transport layer; a top charge generating layer sensitive to a first light wavelength; a bottom charge generating layer sensitive to a second light wavelength; and a substrate, wherein the charge transport layer is positioned anywhere above the substrate, wherein the photoreceptor exhibits in response to exposure by the first light wavelength a first photodischarge curve having a first residual voltage and the photoreceptor exhibits in response to exposure by the second light wavelength a second photodischarge curve having a second residual voltage.

US Patent:

6946227, Sep 20, 2005

Filed:

Nov 20, 2002

Appl. No.:

10/300643

Inventors:

Liang-Bih Lin - Webster NY, US
Richard H. Nealey - Plymouth MA, US
Ah-Mee Hor - Mississauga, CA
James M. Duff - Mississauga, CA
Timothy P. Bender - Port Credit, CA
Andrew R. Melnyk - Rochester NY, US
Andronique Ioannidis - Webster NY, US
Harold F. Hammond - Rochester NY, US
Linda L. Ferrarese - Rochester NY, US
Cindy C. Chen - Rochester NY, US
James M. Markovics - Rochester NY, US

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G005/06

US Classification:

430 72, 430 75, 430 78

Abstract:

A photoconductive imaging member containers of a supporting substrate, and thereover a single layer comprised of a mixture of a photogenerator component, a charge transport component, an electron transport component, and a polymer binder, and wherein the photogenerating component is a pigment.

US Patent:

20030049551, Mar 13, 2003

Filed:

Sep 7, 2001

Appl. No.:

09/947930

Inventors:

Satish Parikh - Rochester NY, US
Kathleen Carmichael - Williamson NY, US
Edward Grabowski - Webster NY, US
Andrew Melnyk - Rochester NY, US
Liang-Bih Lin - Webster NY, US
Andronique Ioannidis - Webster NY, US
Dasarao Murti - Mississauga, CA
Harold Hammond - Webster NY, US

Assignee:

Xerox Corporation

International Classification:

G03G005/047

US Classification:

430/058650, 430/058750, 430/059400

Abstract:

An electrostatographic article including: a substrate; a charge generator layer overcoated on the substrate and which layer is sensitive to blue light; and a charge transport layer overcoated on the charge generator layer and which charge transport layer is transparent to blue light.

US Patent:

20040063011, Apr 1, 2004

Filed:

Sep 24, 2002

Appl. No.:

10/253826

Inventors:

Liang-Bih Lin - Webster NY, US
Merlin Scharfe - Penfield NY, US
Harold Hammond - Rochester NY, US
Cindy Chen - Rochester NY, US
Richard Nealey - Plymouth MA, US
Andronique Ioannidis - Webster NY, US
Andrew Melnyk - Rochester NY, US

Assignee:

Xerox Corporation

International Classification:

G03G005/047

US Classification:

430/057300, 430/057200, 430/058250

Abstract:

A photoconductive imaging member comprised of a supporting substrate, and thereover a single layer comprised of a mixture of a photogenerator component, a charge transport component, an electron transport component, and a polymer binder, and wherein the photogenerating component is a pigment.

US Patent:

53065867, Apr 26, 1994

Filed:

Aug 6, 1992

Appl. No.:

7/926088

Inventors:

Damodar M. Pai - Fairport NY
Andrew R. Melnyk - Rochester NY
Milan Stolka - Fairport NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 1502

US Classification:

430 58

Abstract:

An electrophotographic imaging member including a charge generating layer and a heterogeneous charge transport layer, the charge transport layer having regions of charge transport and inactive regions and the charge transporting regions are in contact with each other. This imaging member has characteristics that enable high quality and high contrast imaging.

US Patent:

54495822, Sep 12, 1995

Filed:

Jun 6, 1994

Appl. No.:

8/254721

Inventors:

Bing R. Hsieh - Webster NY
Andrew R. Melnyk - Rochester NY
Jerry H. Taylor - Webster NY
Paul A. Harmer - Ontario NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 506

US Classification:

430134

Abstract:

A process for preparing ultrafine pigment dispersions comprising providing a solubilized mixture of pigment-Lewis acid complex and an aprotic organic solvent; precipitating the resulting solubilized complex into a protic solvent thereby forming a dispersion of ultrafine pigment particles; removing the aprotic and protic solvents to afford a wet cake containing finely divided pigment particles; optionally neutralizing and washing the wet cake particles; and redispersing the resulting ultrafine pigment particles in an aqueous solution, an organic solvent, or mixtures thereof, and a binder resin to form an ultrafine pigment and binder resin dispersion.

US Patent:

51621835, Nov 10, 1992

Filed:

May 10, 1991

Appl. No.:

7/698215

Inventors:

Nero R. Lindblad - Ontario NY
Richard L. Schank - Pittsford NY
Richard W. Bigelow - Webster NY
Herbert C. Relyea - Webster NY
Robert E. Trott - Webster NY
Andrew R. Melnyk - Rochester NY
Merlin E. Scharfe - Penfield NY
Walter F. Leising - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 5047
G03G 5147

US Classification:

430 59

Abstract:

A surface layer on an imaging member has a surface roughness which reduces the force necessary for blade cleaning, reduces blade edge truck, reduces blade/substrate friction, inhibits the formation of toner-type deposits on the imaging surface, and/or reduces or eliminates light interference patterns resulting from coherent light, for example, from a raster output scanner.

US Patent:

54513111, Sep 19, 1995

Filed:

Dec 10, 1993

Appl. No.:

8/165123

Inventors:

Eugene A. Swain - Webster NY
Gary J. Maier - Webster NY
Andrew R. Melnyk - Rochester NY
Geoffrey M. T. Foley - Fairport NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

C25D 102

US Classification:

205 73

Abstract:

Apparatus and process are disclosed for fabricating an endless metal belt comprising a center region between a first end region and a second end region, wherein a portion of the first end region is at least 1. 5 times thicker than the center region, thereby resulting in a thickened end portion.