Abstract: Disclosed is a xerographic printing apparatus and print cartridge including a deformable electrically conductive ring. According to an exemplary embodiment, a xerographic image rendering print cartridge includes a drive shaft, a photoreceptor drum and a deformable electrically conductive ring operatively associated with electrically connecting an inside surface of the photoreceptor drum to the drive shaft to provide a grounding electrical path.

Abstract: An electrophotographic photoconductor including: an electrically conductive substrate; and at least a photoconductive layer thereon, wherein the photoconductive layer contains a diazapentadiene derivative represented by general formula (1): where “X” represents general formula (a), (b) or (c); “R1” and “R2” each represent substituted or unsubstituted alkyl group or aromatic hydrocarbon group, and may be the same or different; “R1” and “R2” may be joined together via “Y” to form a ring; “Y” represents single bond, oxygen atom, —CH2CH2—, or —CH?CH—, where “R3” represents substituted or unsubstituted alkyl group, aromatic hydrocarbon group, alkoxy group, alkoxycarbonyl group, or halogen group; “R4” represents substituted or unsubstituted alkyl or aromatic hydrocarbon group; “n” represents integer ranging from 0 to 4; and when “n” is integer of 2 to 4, “R3” may be the same or different.

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 hydroxygallium phthalocyanine, a hydroxyaluminum phthalocyanine, a polymeric binder, and a silanol.

Abstract: An electrophotographic photoconductor includes a conductive substrate and an outermost surface layer formed on the conductive substrate and containing a binder resin and a copolymer derived from a reactive monomer having charge transport property and a reactive monomer having no charge transport property, the copolymer having a side chain with 4 or more carbon atoms in a constitutional unit derived from the reactive monomer having no charge transport property.

Abstract: An electrophotographic photoconductor system for use in an electrophotographic device and method of using the same. The electrophotoconductor system comprises an electroconductive support, a charge generation layer disposed on the electroconductive support, and a charge transport layer disposed on the charge generation layer. The charge generation layer includes a photosensitive material comprising titanyl phthalocyanine, and at least one oligomeric phenylene additive. The electrophotographic photoconductor system is capable of absorbing light having a wavelength of about 350 nm to about 850 nm.

Abstract: An electrophotographic photoreceptor including a conductive substrate; and a photosensitive layer located overlying the conductive substrate, including a charge generation material, an electron transport material having a specific formula, and a hole transport material having a specific formula.

Abstract: Provide is an electrophotographic photoreceptor exhibiting excellent evenness of halftone images together with fine line reproduction, and an image forming method thereof, as to a photoreceptor in which an oxytitanium phthalocyanine pigment having a maximum diffraction peak at a Bragg angle (2?±0.2°) of 27.2° in CuK? X-ray diffraction. Also disclosed is an electrophotographic photoreceptor possessing a body having cylindrical conductive support provided thereon photosensitive layer containing oxytitanium phthalocyanine pigment having maximum diffraction peak at a Bragg angle (2?±0.2°) of 27.2° in CuK? X-ray diffraction, and flanges jointed at both ends of the body, wherein at least one of flanges is fitted with driving shaft having drive hole having at least 3 sides, and a ratio B/A of cross-sectional area B of engaging part of rotation shaft to rotate the electrophotographic photoreceptor with respect to cross-sectional area A of the drive hole is 0.890-0.998.

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 at least one of the photogenerating layer and the charge transport layer contains at least one of a pyridinium salt and a tetrazolium salt.

Abstract: A photoconductor that includes a supporting substrate, a first photogenerating layer, a second photogenerating layer and at least one charge transport layer. The first photogenerating layer contains, for example, a phthalocyanine pigment, and the second photogenerating layer contains a different phthalocyanine pigment than the first photogenerating layer phthalocyanine.

Abstract: Disclosed herein is a flexible imaging member having a high concentration of a charge transport compound having optimum enhanced mechanical and electrical characteristics. By increasing the concentration of the charge transport compound to a level of from about 55 weight percent or more, including from about 55 weight percent to about 70 weight percent, and from about 55 weight percent to about 65 weight percent, a flexible imaging member can be produced with reduced residual voltage and/or improved sensitivity. Furthermore, the fatigue cracking resistance of the charge transport layer can be improved through the implementation of a heat stress release process described more particularly herein.

Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, a charge transport layer, and a top overcoating layer in contact with and contiguous to the charge transport layer.

Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, a charge transport layer, and a top overcoating layer in contact with and contiguous to the charge transport layer.

Abstract: A coating composition that contains a mixture of an alkyl alcohol, a glycol monoether, a charge transport component, a crosslinking component, and at least one hydroxyl containing polymer, and a photoconductor thereof with a supporting substrate, a photogenerating layer, and at least one charge transport layer, and an overcoating layer in contact with and contiguous to the charge transport layer, and which overcoating is comprised of a mixture of an alkyl alcohol, a glycol monoether, an acrylated polyol, a polyalkylene glycol, a crosslinking component, and a charge transport component.

Abstract: A photoconductor that includes a supporting substrate, a first photogenerating layer, a second photogenerating layer and at least one charge transport layer. The first photogenerating layer contains, for example, a phthalocyanine pigment, and the second photogenerating layer contains a different phthalocyanine pigment than the first photogenerating layer phthalocyanine.

Abstract: An arylamine compound represented by formula (1): wherein R1 to R4 each independently represents a linear alkyl group or an arylalkenyl group, provided that when all of R1 to R4 represent linear alkyl groups, at least one of R1 to R4 represents a linear alkyl group having a carbon number of 3 or more; and an electrophotographic photoreceptor.

Abstract: The present invention provides an image forming apparatus which has high durability and allows for preventing occurrence of image blur and suppressing image degradation caused by a reduction in image density near a charging unit used under a high-humidity condition and stably forming high-quality images even when repetitively used for a long hours.

Abstract: This invention relates to an improved organophotoreceptor that comprises an electrically conductive substrate having at least a surface; an inner photoconductive layer adjacent the surface of the electrically conductive substrate; and an outer photoconductive layer adjacent the inner photoconductive layer. In some embodiments, the inner photoconductive layer comprises a first binder in an amount not more than 45% by weight of the inner photoconductive layer, a first charge generating compound, and a charge transport compound, and the outer photoconductive layer comprises a second binder in an amount not less than 45% by weight of the outer photoconductive layer and a second charge generating compound. The inner photoconductive layer and the outer photoconductive layer can be discrete layers or sections of a gradient layer.

Abstract: An electrophotographic photoreceptor including an electroconductive substrate, a charge generation layer overlying the electroconductive substrate to generate a first charge to form an electrostatic latent image when exposed to a first light, and a charge generation and transport layer overlying the charge generation layer to generate a second charge when exposed to second light and to transport the first and second charges to a surface of the photoreceptor.

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.

Abstract: An electrophotographic photoreceptor including an electroconductive substrate, a charge generation layer overlying the electroconductive substrate to generate a first charge to form an electrostatic latent image when exposed to a first light, and a charge generation and transport layer overlying the charge generation layer to generate a second charge when exposed to second light and to transport the first and second charges to a surface of the photoreceptor.

Abstract: An electrophotographic imaging member with a charge generation section having separate layers of benzimidazole perylene photoconductive pigment and hydroxygallium ptalocyanine photoconductive pigment.

Abstract: An organic photoconductor is disclosed, which comprises a cylindrical electrically conductive support and, formed thereon in this order, a charge-generating layer and a charge-transporting layer, the external surface of the cylindrical electrically conductive support having an index of surface area as defined by the following equation (I) of from 0.01 to 0.10, and the charge-generating layer having a multilayer structure comprising a charge-generating layer having n-type semiconductor characteristics and a charge-generating layer having p-type semiconductor characteristics: (Sa/Sm)−1  (I) wherein Sa is the actual surface area of the external surface of the cylindrical electrically conductive support and Sm is the theoretical surface area thereof calculated on the assumption that the support is an ideal cylinder.

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.