Abstract: A process for producing an electrophotographic light-receiving member having a conductive support and a light-receiving member having a photoconductive layer formed on the surface of the conductive support and composed of a non-single crystal material containing silicon atoms as a main component, hydrogen atoms and/or halogen atoms. The photoconductive layer is formed at a flow rate (X) sccm of n Si supply gas and a discharge space volume (Z) cm3 satisfying (A) and a flow rate (X) sccm of the Si supply gas and density (Y) W/cm3 of the electric power input to the discharge space satisfying the following relation (B) wherein 3×10−3≦X/Z≦1×10−2  (A) and 3×10−4≦Y/X≦7×10−4  (B).

Abstract: A process for producing an electrophotographic light-receiving member having a conductive support and a light-receiving member having a photoconductive layer formed on the surface of the conductive support and composed of a non-single crystal material containing silicon atoms as a main component, hydrogen atoms and/or halogen atoms.

Abstract: An electrophotographic photosensitive member has a support and a photosensitive layer provided thereon. The photosensitive layer contains a carixarene compound having specific structure. Also disclosed are a process cartridge and an electrophotographic apparatus which have the electrophotographic photosensitive member.

Abstract: An electrophotographic photoconductor having an electroconductive support, and a photoconductive layer formed on the support and having an outwardly facing surface. The photoconductive layer includes a charge transporting material, a charge generating material and an inorganic filler including &agr;-alumina, wherein the concentration of the inorganic filler in the photoconductive layer decreases stepwise or continuously in the direction from the outwardly facing surface thereof to the opposite surface thereof.

Abstract: Charge transport layers comprise a hydrazone charge transport compound, Savinyl® yellow and an antioxidant. Dual layer photoconductors comprise the charge transport layer in combination with a substrate and a charge generation layer.

Abstract: An image forming apparatus including at least an image irradiator configured to irradiate a photoreceptor with a coherent light beam while scanning to form pixel light spots thereon for forming an electrostatic latent image thereon, wherein the light spots overlap with adjacent light spots; and an image developer configured to develop the electrostatic latent image with a developer, wherein the photoreceptor comprises an intermediate layer located overlying an electroconductive substrate, a charge generation layer located overlying the intermediate layer and a charge transport layer located overlying the charge generation layer, wherein the charge generation layer satisfies the following relationship:

Abstract: A multi-active electrophotographic charge generation element comprises a conductive support, a charge generation layer (CGL) disposed on the conductive support, and a charge transport layer (CTL) disposed on the charge generation layer. The charge generation layer (CGL) includes a charge-generation material comprising an aggregated or crystalline form of a first dye or pigment and a first polymeric binder. The charge transport layer (CTL) comprises at least one charge-transport agent, a second dye or pigment having absorption in a selected spectral region that at least partially overlaps the absorption of a dissolved non-aggregated or non-crystalline form of the first dye or pigment, and a second polymeric binder. The second dye or pigment in the charge transport layer absorbs radiation in the selected spectral region that is incident on the charge transport layer, thereby shielding the charge generation layer from that radiation and mitigating visible radiation-induced photofatigue.

Abstract: An electrophotographic photosensitive member having a sensitivity to a short semiconductor laser light in a wavelength range of 380-500 nm is provided by incorporating a specific porphyrin compound in a photosensitive layer. The porphyrin compound is characterized by having a heterocyclic substituent, preferably 4 heterocyclic substituents each of a pyridyl group. The porphyrin compound includes a 5,10,15,20-tetrapyridyl-21H,23H-porphyrinato-zinc compound having a novel crystal form characterized by certain peaks in a CuK&agr;-characteristic X-ray diffraction pattern.

Abstract: An electrophotographic photoconductor and method of manufacturing thereof exhibits excellent characteristics of residual potential and repetition potential by containment of an additive of a compound. The electrophotographic photoconductor includes a conductive substrate and a photosensitive layer on the substrate, in which the photosensitive layer contains tri(4-nitrophenyl) phosphate.

Abstract: A process for the preparation of perylene mixtures comprised of at least two symmetrical perylene bisamide dimers of Formula 1 wherein R is hydrogen, alkyl, cycloalkyl, substituted alkyl, aryl, substituted aryl, aralkyl or substituted aralkyl, and at least one terminally unsymmetrical dimer of Formula 2 wherein R1 and R2 are hydrogen, alkyl, cycloalkyl, substituted alkyl, aryl, substituted aryl, aralkyl, or substituted aralkyl, and wherein R1 and R2 are dissimilar, which process comprises the condensation of a mixture of at least two perylene monoimide-monoanhydrides of Formula 3 with a diamine wherein R is hydrogen, alkyl, cycloalkyl, substituted alkyl, aryl, substituted aryl, aralkyl, and substituted aralkyl, with a 1,3-diaminopropane.

Abstract: An electrophotographic photoconductor having an electroconductive support, and a photoconductive layer formed on the support and having an outwardly facing surface. The photoconductive layer includes a charge transporting material, a charge generating material and an inorganic filler including &agr;-alumina, wherein the concentration of the inorganic filler in the photoconductive layer decreases stepwise or continuously in the direction from the outwardly facing surface thereof to the opposite surface thereof.

Abstract: Methods of forming a conductive aluminum substrate comprise anodizing a surface of an aluminum substrate to form a porous alumina surface layer, contacting the alumina surface layer with a liquid dispersion or solution of a polymer or at least one polymer-forming component, under conditions sufficient for the polymer to seal pores of the alumina surface layer, and removing excess polymer from the alumina surface layer. The resulting sealed conductive aluminum substrate is useful in photoconductors, for example of the dual layer type.

Abstract: An electrophotographic photosensitive member is comprised of a support and a charge generation layer and a charge transport layer provided on the support in this order.

Abstract: An apparatus for forming an image on a recording sheet having low toner pile height. A photoconductive member is provided, said photoconductive member includes a charge generation pattern for directing developed toner; means for recording a latent image of one color separation on said photoconductive member; means for developing said latent image on said photoconductive member; and means for transferring said developed said latent image on said photoconductive member to the recording sheet.

Abstract: The present invention provides a negative charging electrophotographic photoreceptor, which includes an electroconductive substrate; a charge generation layer disposed on the electroconductive substrate; and a charge transport layer disposed on the charge generation layer; wherein the charge transport layer is in a homogeneous state; and wherein the charge generation layer has a light transmittance of at least 10% per micrometer of film thickness of the charge generation layer, or wherein the photoreceptor has an E50/E10 ratio in the range of 1 to 6, or wherein the charge generation layer has a light transmittance of at least 68% per micrometer of film thickness of the charge generation layer. The present invention provides methods of making and using the electrophotographic photoreceptor, and apparatuses which include the electrophotographic photoreceptor.

Abstract: A xerographic photoreceptor primarily formed by amorphous silicon material is disclosed, wherein the xerographic photoreccptor is a photosensitive drum used in copying and manufactured by the plasma enhanced low pressure chemical vapor deposition system. Such a drum has a higher resolution, and a longer lifetime. In this structure, an Al2O3 oxidization layer is grown on an aluminum substrate. Then a n type hydrogenated amorphous silicon blocking layer is grown on the aluminum substrate with Al2O3 oxidization layer. Then an intrinsic hydrogenated amorphous silicon charge generating transmission layer is grown on the n type hydrogenated amorphous silicon blocking layer. Finally a hydrogenated amorphous carbon surface protecting layer is grown on the intrinsic hydrogenated amorphous silicon charge generation transport layer for forming a xerographic photoreceptor with a multiple layer structure.

Abstract: A photoconductive imaging member containing a photogenerating layer comprised of a mixture of perylenes, wherein the mixture comprises, for example, (1) 1,3-bis(n-pentylimidoperyleneimido) propane (Formula A), 1,3-bis(2-methylbutylimido peryleneimido)propane (Formula B) and 1-(n-pentylimidoperyleneimido)-3-(2-methylbutyl imidoperyleneimido)-propane (Formula C), and (2) an electron acceptor component polymer

Abstract: A photoconductor includes a charge transport layer coated over a charge generator layer. A hole transport molecule is intentionally added to the charge generator layer preventing migration of hole transport molecules from the charge transport layer to the charge generator layer.

Abstract: A photoconductive imaging member comprised of a mixture of at least two symmetrical perylene bisimide dimers of Formula 1 Formula 1 wherein R is hydrogen, alkyl, cycloalkyl, substituted alkyl, aryl, substituted aryl, aralkyl or substituted aralkyl, and at least one terminally unsymmetrical dimer of Formula 2 Formula 2 wherein R1 and R2 are hydrogen, alkyl, cycloalkyl, substituted alkyl, aryl, substituted aryl, aralkyl, or substituted aralkyl, and wherein R1 and R2 are dissimilar.

Abstract: A photoreceptor including an electroconductive substrate and a photosensitive layer which is formed on the electroconductive substrate and which includes a charge generation material, wherein the charge generation material comprises an organic pigment and wherein the photosensitive layer further includes at least one ion selected from the group consisting of K+, Na+, NO3−, HCOO−, NO2−, Cl−, Br−, and NH4+ or one or more water-soluble inorganic salts.

Abstract: A stacked organic photosensitive optoelectronic device optimized to enhance desired characteristics such as external quantum efficiency and voltage is described. The photosensitive optoelectronic device has a plurality of photosensitive optoelectronic subcells electrically configured in series. The substrate may be the bottom electrode or there may be a bottom electrode distinct from the substrate. Each subcell comprises one or more organic photoconductive layers between electrode layers or charge transfer layers. In one embodiment the top electrode is transparent. In other embodiments two or more electrodes are transparent. In other embodiments photosensitive optoelectronic devices with multilayer photoconductive structures and photosensitive optoelectronic devices with a reflective layer or a reflective substrate are disclosed.

Abstract: In an electrophotographic photoreceptor which comprises an electrically conductive support having thereon a multilayer composed of a photosensitive layer and a protective surface layer in said order, an electrophotographic photoreceptor characterized in that said protective surface layer comprised of a layer comprising structural units having charge transportability, as well as siloxane based resins having a cross linking structure, and said photosensitive layer comprises titanyl phthalocyanine having a maximum peak of Bragg angle (2&thgr;±0.2)° at 27.2° with respect to Cu-K&agr; ray.

Abstract: Charge generation layers for photoconductors comprise a charge generation compound and at least one titanate which improves at least one electrical characteristic of a photoconductor in which the charge generation layer is included. Photoconductors comprise the charge generation layer in combination with a substrate and a charge transport layer.

Abstract: A photoreceptor including: (a) a substrate; (b) a charge generating layer including a binder, a n-type charge generating material, and a plurality of needle shaped n-type particles; and (c) a charge transport layer, wherein the charge generating layer and the charge transport layer are in any sequence over the substrate.

Abstract: A photoconductive imaging member containing a photogenerating layer and a charge transport layer, and wherein the charge transport layer contains a poly(imide-carbonate) resin binder of (I) or (II) wherein A, B and E are divalent linkages; D is a trivalent linkage in (I) and a tetravalent linkage in (II); and x and y represent mole fractions wherein the sum of x+y is equal to 1.

Abstract: Charge generation layers comprise a charge generation compound and a binder which comprises polyvinylbutyral and phenolic resol. Dual layer photoconductors comprise the charge generation layer in combination with a substrate and a charge transport layer, in which the charge generation layer comprises a charge generation compound and a binder which comprises polyvinylbutyral and phenolic resol. Dual layer photoconductors comprise the charge generation layer in combination with a substrate and a charge transport layer, in which the charge generation layer comprises a charge generation compound and a binder which comprises polyvinylbutyral and a resin selected from the group consisting of phenol novolac and polyhydroxystyrene.

Abstract: A photoconductive imaging member containing a photogenerator layer comprised of a mixture of bis(methylbenzimidazo)perinone, optionally an (alkylimido)perylene, such as (n-pentylimido)perylene or mixtures of (n-pentylimido)perylene, bisbenzimidazo(2,1-a-1′,2′-b)anthra(2,1,9-def:6,5,10-d′e′f′)diisoquinoline-6,11-dione and bisbenzimidazo(2,1-a:2′,1′-a)anthra(2,1,9-def:6,5,10-d′e′f′)diisoquinoline-10,21-dione, and a charge transport layer.

Abstract: A photoconductive imaging member containing a photogenerating layer comprised of a mixture of perylenes, wherein the mixture comprises, for example, (1) 1,3-bis(n-pentylimidoperyleneimido) propane (Formula A), 1,3-bis(2-methylbutylimido peryleneimido)propane (Formula B) and 1-(n-pentylimidoperyleneimido)-3-(2-methylbutylimidoperyleneimido)-propane (Formula C), and (2) an electron acceptor component Formula A 1,3-bis(n-pentylimidoperyleneimido)propane Formula B 1,3-bis(2-methylbutylimidoperyleneimido)propane Formula C 1-(n-pentylimidoperyleneimido)-3-(2-methylbutylimidoperyleneimido)propane

Abstract: A crack resistant, curl-free electrophotographic imaging member includes a charge transport layer comprising an active charge transporting polymeric tetraaryl-substituted biphenyidiamine and a plasticizer.

Abstract: Disclosed is an imaging member which comprises a conductive substrate, a photogenerating material, and a binder comprising a polymer of the formula wherein A is or a mixture of wherein R is a hydrogen atom, an alkyl group, an aryl group, or mixtures thereof, B is one of specified groups, such as or mixtures thereof, and n is an integer representing the number of repeating monomer units.

Abstract: A photo conducting imaging member has a charge generator layer including a binder containing at least a polycarbonate of formula (I):