Abstract: A photoconductor containing an optional supporting substrate, a silanol containing photogenerating layer, and at least one charge transport layer.

Abstract: An electrophotographic photoconductor that is excellent in the stability of image quality and can realize high durability is provided. In an electrophotographic photoconductor in which an underlying layer, a photoconductive layer, and a crosslinked-type charge transportation layer are stacked on an electrically conductive support in order, the underlying layer is composed of at least two layers being a layer containing an inorganic pigment and a layer including no inorganic pigment, and the crosslinked-type charge transportation layer is formed by curing, at least, a three-or-more-functional radical-polymerizable monomer having no charge transporting structure and a radical-polymerizable compound having one-functional charge transporting structure.

Abstract: The present invention provides a latent electrostatic image bearing member which includes a support, a charge generating layer, and a charge transporting layer, the charge generating layer and the charge transporting layer being arranged in this order on or above the support, wherein the charge transporting layer comprises at least a charge transporting material and a binder resin and has a thickness of 30 ?m to 50 ?m; and the distribution representing the relation between the absorbance ratio of the charge transporting material and the binder resin measured by infrared spectroscopy and the distance from the surface of the charge transporting layer toward the thickness direction thereof represents a generally linear shape without having inflection points within 20 ?m from the surface of the charge transporting layer toward the thickness thereof.

Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the photogenerating layer contains a titanyl phthalocyanine prepared, for example, by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with a monohalobenzene.

Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the photogenerating layer contains an alkyltriol, such as glycerol, and a photogenerating pigment, such as a Type V titanyl phthalocyanine prepared, for example, by dissolving a Type I titanyl phthalocyanine in a solution of a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution of an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with a monohalobenzene.

Abstract: An image bearing member including an electroconductive substrate, a charge blocking layer disposed overlying the electroconductive substrate, a moire prevention layer disposed overlying the charge blocking layer, and a photosensitive layer disposed overlying the moire prevention layer. The charge blocking layer contains N-alkoxymethylized nylon and optionally at least one of an aliphatic dicarboxylic acid and an aliphatic tricarboxylic acid. The moire prevention layer contains a titanium oxide having a purity not less than 99.0% and a cross-linking resin.

Abstract: An imaging member is disclosed with a charge transport layer comprising a dimethyl terphenyl diamine having the structure of Formula (I): wherein n is an integer from 0 to about 18. The resulting imaging member has enhanced performance properties.

Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl ether of the formula wherein each R1, R2, and R3 is independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and n is from about 1 to about 10, and a thiophosphate.

Abstract: A photoconductor comprising a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein said photogenerating layer contains a light stabilizer.

Abstract: A photoconductor comprising a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and where the photogenerating layer contains a triazine.

Abstract: A photoconductor comprising a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and where the photogenerating layer contains a boron containing compound.

Abstract: A photoconductor that includes, for example, a substrate; an undercoat layer thereover wherein the undercoat layer contains a metal oxide and an iodonium containing compound; a photogenerating layer; and at least one charge transport layer.

Abstract: A photoconductor that includes, for example, a substrate; an undercoat layer thereover wherein the undercoat layer contains a metal oxide, and a copper containing compound; a photogenerating layer; and at least one charge transport layer.

Abstract: A photoconductor that includes a substrate; an undercoat layer thereover comprised of a metal oxide, and an ultraviolet light absorber component; a photogenerating layer; and at least one charge transport layer.

Abstract: A photoconductor that includes a substrate; an undercoat layer thereover wherein the undercoat layer contains, for example, a metal oxide, and an iron containing compound; a photogenerating layer; and at least one charge transport layer.

Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component wherein the at least one charge transport component is comprised of aryl amine molecules of the formula wherein X and Y are each independently alkyl, alkoxy, aryl, a halogen, and wherein the photogenerating layer contains a titanyl phthalocyanine prepared by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with monohalobenzene.

Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one C-ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and the sum of n plus m (n+m) is from about 1 to about 10, and a thiophosphate.

Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer and at least one charge transport layer of at least one charge transport component, at least one polyphenyl thioether of the formula wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen mixtures thereof, and n is a number of, for example, from about 1 to about 10.

Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, at least one C-ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and the sum of n plus m (n+m) is from about 1 to about 10.

Abstract: The present disclosure relates to an electrophotoconductive element comprising a conductive substrate, a charge generation layer including a charge generating compound and a charge transport layer. The charge generation layer includes a first polymer resin and second polymer resin to provide a blend including the charge generating compound. The first polymer resin may therefore indicate an energy at a half charge potential E0.5(POLYMER) upon exposure to light at a wavelength of about 350-500 nm. The blend then also indicates an energy at half charge potential E0.5(BLEND) upon exposure to light at a wavelength of about 350-500 nm. The second polymer resin of the blend is therefore selected to provide that E0.5(BLEND)<E0.5(POLYMER).

Abstract: A process which includes treating, mixing, or contacting a Type I titanyl phthalocyanine with a weak acid with a pKa of at least equal to or greater than about 0; dissolving the acid treated Type I titanyl phthalocyanine in a solution of a trihaloacetic acid and an alkylene halide; adding the formed mixture to a solution of an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with monohalobenzene thereby resulting in a high sensitivity titanyl phthalocyanine.

Abstract: A photoconductor that includes a substrate; an undercoat layer thereover wherein the undercoat layer comprises a metal oxide, an electron donor electron acceptor charge transfer complex; a photogenerating layer; and at least one charge transport layer.

Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl thioether of the formula wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, aryl, alkoxy, and halogen; n is a number of from about 1 to about 10; and a thiophosphate.

Abstract: A titanylphthalocyanine crystal having an X-ray diffraction spectrum having plural diffraction peaks and a primary particle diameter not greater than 0.2 ?m, wherein a maximum diffraction peak is observed at a Bragg (2 ?) angle of 27.2±0.2°; main peaks are observed at 9.4°, 9.6° and 24.0°; and a minimum diffraction peak is observed at 7.3°; and preferably no diffraction peak is observed at an angle greater than 7.3° and less than 9.4° when a specific X-ray of CuK? having a wavelength of 1.542 ? irradiates the titanylphthalocyanine crystal.

Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and n is a number of from about 1 to about 10; and wherein a thiophosphate is contained in the photogenerating layer.

Abstract: The invention provides an electrophotographic photoreceptor capable of producing high quality images even when development is carried out under low electric potential conditions, and also provides an image forming device incorporating such an electrophotographic photoreceptor. In a photosensitive layer 14 of a photoreceptor 1, the mobility of electric charges is 2×10?6 cm2/(V·s) or greater at an electric field intensity E of 1×105 V/cm. Further, the slope ?in equation 1 representing the mobility of electric charges is 5×10?4 or less in an electric field range of 5×104<E<1×105.

Abstract: A two-layered electrophotographic photoreceptor is formed. The two-layered electrophotographic photoreceptor includes an electrically conductive substrate and a charge generating layer and a charge transporting layer form on the electrically conductive substrate, wherein the charge generating layer is a naphthalenetetracarboxylic acid diimide derivative represented by: The two-layered electrophotographic photoreceptor has high photosensitivity and low residual potential.

Abstract: A photoconductor containing a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the photogenerating layer contains a photogenerating pigment or pigments, and a bis(pyridyl)alkylene.

Abstract: A photoconductor containing a supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, and wherein the charge transport layer contains a charge blocking agent, such as a benzoimidazole.

Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer and at least one charge transport layer of at least one charge transport component, at least one C-ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and the sum of n plus m (n+m) is from about 1 to about 10, and an optional antioxidant; and wherein a thiophosphate is contained in the photogenerating layer.

Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the photogenerating layer contains a Type V hydroxygallium phthalocyanine having incorporated therein a silanol.

Abstract: A photoconductor that contains a first layer, a supporting substrate thereover, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the first layer is in contact with the supporting substrate on the reverse side thereof, and which first layer includes a polymer and needle shaped particles with an aspect ratio of from 2 to about 200.

Abstract: A photoconductor containing a first layer, a supporting substrate thereover, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the first layer is in contact with the supporting substrate on the reverse side thereof, and which layer contains a semi-penetrating polymer network formed from crosslinking a suitable fluoropolymer, and within which network structure is penetrated with a polycarbonate.

Abstract: A photoreceptor device having at least one layer that is a self-assembled patterned binder layer, which may include at least one functional material.

Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, at least one charge transport layer, and an overcoating layer in contact with and contiguous to the charge transport layer, and which overcoating layer includes a fluoroalkyl ester, and a polymer.

Abstract: A photoconductor containing a supporting substrate, a photogenerating layer, and at least one charge transport layer which contains a fluoroalkyl ester.

Abstract: A photoconductor containing a supporting substrate, a photogenerating layer; and at least one charge transport layer where the photogenerating layer contains a photogenerating pigment and a chelating additive or agent.

Abstract: A photoconductor containing a substrate; an undercoat layer thereover wherein the undercoat layer includes an electroconducting component dispersed in a rapid curing polymer matrix; a photogenerating layer, and at least one charge transport layer.

Abstract: A titanylphthalocyanine crystal having an X-ray diffraction spectrum having plural diffraction peaks and a primary particle diameter not greater than 0.2 ?m, wherein a maximum diffraction peak is observed at a Bragg (2?) angle of 27.2±0.2°; main peaks are observed at 9.4°, 9.6° and 24.0°; and a minimum diffraction peak is observed at 7.3°; and preferably no diffraction peak is observed at an angle greater than 7.3° and less than 9.4° when a specific X-ray of CuK? having a wavelength of 1.542 ? irradiates the titanylphthalocyanine crystal.

Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the photogenerating layer contains an alkyltriol, such as glycerol, and a photogenerating pigment, such as a Type V titanyl phthalocyanine prepared, for example, by dissolving a Type I titanyl phthalocyanine in a solution of a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution of an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with a monohalobenzene.

Abstract: An electrophotographic photoconductor where generation of cracks, crystallization of a photosensitive layer, and the like occur infrequently by sticking of finger oil. An electrophotographic photoconductor includes a conductive substrate on which a photosensitive layer containing at least a charge generating agent, a hole transfer agent and a binding resin is provided, wherein the binding resin is comprised of a plurality of polycarbonate resins; and the photosensitive layer contains a biphenyl derivative as a plasticizer component represented by the following general formula (1). (wherein R1 to R10 each independently represent a substituted or unsubstituted alkyl group having 1 to 12 carbon atoms, and R represents a substituted or unsubstituted aryl group having 1 to 12 carbon atoms or a substituted or unsubstituted alkylene group having 1 to 12 carbon atoms).

Abstract: A photoconductive imaging member containing a photogenerating layer, and a charge transport layer, and wherein the charge transport layer is comprised of an arylamine containing a moiety that minimizes oxidation.

Abstract: A photoreceptor including an electroconductive substrate; and a charge blocking layer; a moiré preventing layer; and a photosensitive layer, which are overlaid overlying the substrate in this order, wherein the photosensitive layer includes a titanyl phthalocyanine crystal which has an average primary particle diameter not greater than 0.25 ?m, and has an X-ray diffraction spectrum such that a maximum peak is observed at a Bragg (2?) angle of 27.2°±0.2°; a peak is observed at Bragg (2?) angle of 9.4°±0.2°, 9.6±0.2° and 24.0±0.2°; a lowest angle peak is observed at an angle of 7.3°±0.2°; no peak is observed between the lowest angle peak and the 9.4° peak; and no peak is observed at a Bragg (2?) angle of 26.3°±0.2°, when a Cu—K? X-ray having a wavelength of 0.1542 nm (1.542 ?) is used.

Abstract: An electrophotographic image forming apparatus comprising: an electrophotographic photoreceptor comprising: an electroconductive substrate; a charge generation layer; and a charge transport layer in this order, a charger; an irradiator; an image developer; and a transferer applying an electric current not less than 65 ?A to the electrophotographic photoreceptor, wherein the charge generation layer comprises titanylphthalocyanine crystals having a CuK? 1.542 ? X-ray diffraction spectrum having plural diffraction peaks, wherein a maximum diffraction peak is observed at a Bragg (2?) angle of 27.2°; main peaks are observed at 9.4°, 9.6° and 24.0°; and a minimum diffraction peak is observed at 7.3°; and no diffraction peak is observed at an angle greater than 7.3° and less than 9.4°, wherein said angles may vary by ±0.2° and the minimum interval where no peak is observed between required peaks at 7.3 and 9.4 is 2.0 degrees absolute or more.

Abstract: The object of the present invention is to provide a photoconductor that is highly sensitive, stable in image quality under repeated usages, and affords prolonged life. In order attain the object, a photoconductor is provided that comprises a charge generating layer, a charge transporting layer, and a crosslinked charge transporting layer, on an substrate in order, the charge generating layer contains titanyl phthalocyanine crystal particles that exhibit a highest peak at 27.2°, main peaks at 9.4°, 9.6° and 24.0°, a peak at 7.3° as the lowest angle, and with no peaks in a range between 7.3° and 9.4°, and with no peak at 26.3° as Bragg 2?angles (±0.2°) in terms of CuK-? characteristic X-ray wavelength at 1.542 ?, and the averaged primary particle size of the titanyl phthalocyanine crystal particles is 0.

Abstract: An electrophotographic photoconductor includes an electroconductive substrate, a charge generation layer, and a charge transport layer formed by using a halogen-free solvent, arranged in this order, in which the charge generation layer contains a charge generation material having an average particle diameter smaller than a surface roughness of a plane where the electroconductive substrate is arranged, and a polyvinyl acetal resin having a ratio Mw/Mn of a weight-average molecular weight Mw to a number-average molecular weight Mn is 2.2 or more.

Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer thereover, and at least one charge transport layer, and wherein the photogenerating layer contains a chelating agent, and a Type V titanyl phthalocyanine prepared, for example, by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with a monohalobenzene.

Abstract: A photoconductor containing an optional supporting substrate; a photogenerating layer comprised of a chelating agent and a titanyl phthalocyanine; and at least one charge transport layer comprised of at least one charge transport component, and wherein a silanol is present in at least one of said photogenerating layer and charge transport layer.

Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer comprised of a chelating agent and a titanyl phthalocyanine; and at least one charge transport layer comprised of at least one charge transport component; and wherein a silanol is present in at least one of the photogenerating layer and charge transport layer, and wherein said at least one charge transport component is comprised of wherein X and Y are independently a suitable hydrocarbon, a halogen, or mixtures thereof.

Abstract: A photoconductor containing a photogenerating layer, at least one charge transport layer, and a layer in contact with the charge transport layer comprised of a suitable polymer, and wherein the charge transport layer comprises molecules of the formula/structure wherein X represents alkyl.