Xerox Corporation

Other

Anthony T Ward

Timothy J Fuller

John F Yanus

Damodar M Pai

William W Limburg

Dale S Renfer

Paul J DeFeo

Harold F Hammond

Markus Rudolf Silvestri

Robert W Nolley

Donald J Teney

Aleksandar B Damjanovic

Thomas W Smith

Merlin E Scharfe

James M Ishler

Ah-Mee Hor

John S Chambers

David K Cheng

Richard L Schank

George Liebermann

Giuseppa Baranyi

David J Luca

Steven J Grammatica

Gordon E Johnson

Michael L Hair

Paul J De Feo

A crosslinkable charge transport layer material for a photoconductor includes at least one poly(arylene ether alcohol), at least one polyisocyanate crosslinking agent and at least one charge transport material dispersed in a solvent. The crosslinkable charge transport layer material is crosslinked following application of the coating solution to the photoconductor. The photoconductor including such crosslinked charge transport layer exhibits excellent wear resistance so as to have long life, thereby reducing the cost of electrophotographic printing machines employing such photoconductors therein.

Crosslinkable binder for charge transport layer of a photoconductor

An electrophotographic imaging member including

Imaging member with partially conductive overcoating

A crosslinkable coating composition including an alcohol soluble acrylated polyamide containing alkoxymethyl or alkoxyalkylmethyl groups attached to amide nitrogen atoms, a crosslinking catalyst and a mixture of a hydroxy functionalized aromatic diamine with a hydroxy functionalized triarylamine. A coating is formed from this composition.

Photoreceptor overcoatings containing hydroxy functionalized aromatic

An electrophotographic imaging member including a supporting substrate coated with at least photoconductive layer, a charge transport layer and an overcoating layer, the overcoating layer including

Overcoated photoreceptors and methods of using overcoated photoreceptors

A process for fabricating an electrophotographic imaging member including forming a charge generating layer, forming an undried charge transport layer coating by applying to the charge generating layer a solution selected from either or both the group consisting of

Electrophotographic imaging member overcoat fabrication process

An allyloxymethylatedpolyamide composition is disclosed, the allyloxymethylatedpolyamide being represented by Formulae I and II: ##STR1## wherein: n is a positive integer sufficient to achieve a weight average molecular weight between about 5000 and about 100,000,

Allyloxymethylatedpolyamide synthesis compositions and devices

A process for fabricating an electrophotographic imaging member including

Process for fabricating an electrophotographic imaging member

There is disclosed a crucible assembly comprising: (a) an electrically conductive tube having a first end portion and a second end portion and defining an opening in the surface of the tube, wherein the tube defines an imaginary horizontal line which bisects the cross-sectional dimension of the tube and an imaginary vertical line which bisects the cross-sectional dimension of the tube; and (b) at least one power connection area, operatively associated with the first end portion of the tube, wherein for the crucible assembly having only one power connection area associated with the first end portion, the one power connection area is positioned above the imaginary horizontal line on the same side of the horizontal line as the opening in the tube surface, wherein for the crucible assembly having at least two power connection areas associated with the first end portion, the at least two power connection areas permit coupling of at least two power cables.

Evaporation crucible assembly

There is disclosed a method for forming a photosensitive imaging member to be subjected to light of a specific wavelength comprising: depositing a charge generating layer on a substrate, depositing a charge transport layer on the charge generating layer, wherein there is variation in the thickness of the transport layer, and controlling during the deposition of the charge generating layer the thickness of the generating layer as a way to substantially suppress the optical interference effects at the wavelength of illumination due to the variation in the thickness of the transport layer, wherein the thickness of the generating layer is controlled to enable the imaging member to exhibit an optical absorption modulation which is effective for substantially suppressing the optical interference effects.

Photoreceptor fabrication method

A photoreceptor includes a charge generating layer having: 1) a photogenerating pigment purified by sublimation at a pressure not greater than 10.sup.-3 Torr and subsequent condensation of the photogenerating pigment at a temperature less than about 100.degree. C.; and 2) a film-forming binder.

Purified photogenerating pigments

A multi-layer optical recording member for use with a recording laser for optical recording and retrieving information thereon, as well as a method of fabricating and using said member is described. The optical recording member comprises in sequential order a structural substrate, a thermally degradable polymer layer, a light absorbing recording layer, a thermally degradable polymer dielectric layer, and a reflective layer. The substrate and the thermally degradable polymer layers are stable under ambient light and temperature conditions and substantially transparent to the recording and reading optical radiation. The combined thicknesses of the light absorbing layer and the dielectric layer are such as to provide anti-reflecting conditionsat the recording wavelength and optical contrast between marked and unmarked areas at the reading wavelength. The optical recording member may be used with a single laser source for both recording and reading. Upon exposure to recording radiation, the portion of the light absorbing layer exposed is heated by the absorbed energy which in turn heats adjacent areas of both thermally degradable polymer layers to a level where at least some polymer decomposition with a consequent evolution of gaseous decomposition products occurs resulting in the formation of a hole in the exposed area of the heat absorbing layer.

Optical recording member

An optical recording member is prepared by coating a thin layer of a colloidal dispersion, of minute particles of certain transition metals or their oxides in a polymeric binder, onto a substrate. The optical recording member may be made to achieve anti-reflecting conditions at the marking wavelength by making the substrate reflective and by using proper thickness for the dispersion layer.

Optical disk

There is described a novel method for forming a photoreceptor which includes a photogenerator layer comprising selenium and tellurium. According to the method, the photogenerator layer is formed by electrochemically codepositing selenium and tellurium onto a substrate from a solution of their ions in such a way that the relative amounts of selenium and tellurium which are deposited are controlled by their relative concentrations in the electrolyte and by the choice of electrochemical conditions, i.e., current density or electrode potential. Subsequently a layer of a material capable of transporting at least one species of charge carrier is deposited on the free surface of the photogenerator layer by any suitable technique.

Electrochemical method for forming a selenium-tellurium layer in a

There is described a method for forming a photoreceptor wherein a substrate having a thin electrically insulating oxide film on a surface thereof is subjected to an electroless deposition step from a selenious acid solution whereby the oxide film is dissolved and a thin selenium layer is formed on the substrate. In one embodiment, a relatively thick photoconductive insulating layer comprising selenium or alloys thereof is deposited by vacuum evaporation over the previously electrolessly deposited selenium layer. In another embodiment, a layer of a charge carrier transport material is deposited over the selenium layer. In a preferred embodiment of the invention, an oxide-free substrate is initially subjected to an electrochemical oxidation step in an alkaline medium to form a thin electrically insulating oxide film on the surface thereof.

Growing community of inventors

Webster, NY, United States of America

Anthony T Ward