Abstract: An assembly component of a compression type anchor clamp includes: a housing tube that houses an end portion of a core portion of a power-transmission line; a core portion compression member, made of steel, that includes a housing hole to house the end portion of the core portion and the housing tube and is to be compressed with the core portion and the housing tube; and a conductive portion compression member, made of pure aluminum or an aluminum alloy, that houses an end portion of a conductive portion of the power-transmission line and the core portion compression member and is to be compressed with the conductive portion and the core portion compression member, wherein the housing tube is constituted by pure aluminum or an aluminum alloy whose Vickers hardness “Hv” is less than or equal to 30, and continuously provided in its cylindrical direction without a gap.

Abstract: An assembly component of a compression joint member that connects a power-transmission line to a connection target, includes a core portion compression member including a housing hole that houses an end portion of the core portion, and a compression portion that is compressed for compressing and connecting the end portion of the core portion housed in the housing hole; and a conductive portion compression member that houses an end portion of the conductive portion and the core portion compression member, and is to be compressed with the end portion of the conductive portion and the core portion compression member, wherein the compression portion includes an inclined portion provided at an opening side of the housing hole and whose outer diameter becomes smaller toward the opening side of the housing hole.

Abstract: An assembly component of a compression type anchor clamp includes: a housing tube that houses an end portion of a core portion of a power-transmission line; a core portion compression member, made of steel, that includes a housing hole to house the end portion of the core portion and the housing tube and is to be compressed with the core portion and the housing tube; and a conductive portion compression member, made of pure aluminum or an aluminum alloy, that houses an end portion of a conductive portion of the power-transmission line and the core portion compression member and is to be compressed with the conductive portion and the core portion compression member, wherein the housing tube is constituted by pure aluminum or an aluminum alloy whose Vickers hardness “Hv” is less than or equal to 30, and continuously provided in its cylindrical direction without a gap.

Abstract: An assembly component of a compression joint member that connects a power-transmission line to a connection target, includes a core portion compression member including a housing hole that houses an end portion of the core portion, and a compression portion that is compressed for compressing and connecting the end portion of the core portion housed in the housing hole; and a conductive portion compression member that houses an end portion of the conductive portion and the core portion compression member, and is to be compressed with the end portion of the conductive portion and the core portion compression member, wherein the compression portion includes an inclined portion provided at an opening side of the housing hole and whose outer diameter becomes smaller toward the opening side of the housing hole.

Abstract: Provided is an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein an uppermost surface layer thereof is constituted with a cured film of a composition that contains at least two kinds of reactive charge transporting materials selected from a first reactive charge transporting material having an —OH group as a reactive functional group and a second reactive charge transporting material having an —OCH3 group as a reactive functional group, fluororesin particles, and an alkyl fluoride group-containing copolymer having repeating units represented by the following Structural Formulae A and B, and a relative dielectric constant ?r of the uppermost surface layer satisfies the following Formula (1):

Abstract: Provided is an electrophotographic photoreceptor including an electroconductive substrate, an undercoat layer that is provided on the electroconductive substrate, contains a binder resin, metal oxide particles and an electron accepting compound having an acidic group and has an AC impedance of from 1×105? to 1×108? under the measurement condition in which a temperature is 22° C., a humidity is 50% RH, an AC voltage is ±1 V, and a frequency is 1 Hz and an AC impedance of from 1×103? to 1×108? under the measurement condition in which a temperature is 22° C., a humidity is 50% RH, an AC voltage is ±1 V, and a frequency is 100 Hz, and a photosensitive layer that is provided on the undercoat layer.

Abstract: An electrophotographic photoreceptor includes a conductive substrate; an undercoat layer that is provided on the conductive layer and includes a binder resin, metal oxide particles, and an electron-accepting compound having an acidic group; and a photosensitive layer that is provided on the undercoat layer, wherein when the undercoat layer has a thickness of 20 ?m, a transmittance T1 of the undercoat layer to light having a wavelength of 1000 nm, a transmittance T2 of the undercoat layer to light having a wavelength of 650 nm, and a transmittance T3 of the undercoat layer to light having a maximum absorption peak wavelength of the electron-accepting compound in a wavelength range from 300 nm to 1000 nm satisfy the following expressions (1) and (2): 5?T1/T2?40??Expression (1): 0.25??log10(T3)??Expression (2):.

Abstract: Provided is an electrophotographic photoreceptor including an electroconductive substrate, an undercoat layer that is provided on the electroconductive substrate, contains a binder resin, metal oxide particles and an electron accepting compound having an acidic group and has an AC impedance of from 1×105? to 1×108? under the measurement condition in which a temperature is 22° C., a humidity is 50% RH, an AC voltage is ±1 V, and a frequency is 1 Hz and an AC impedance of from 1×103? to 1×108? under the measurement condition in which a temperature is 22° C., a humidity is 50% RH, an AC voltage is ±1 V, and a frequency is 100 Hz, and a photosensitive layer that is provided on the undercoat layer.

Abstract: There is provided an electrophotographic photoreceptor including a conductive substrate; an intermediate layer; a photosensitive layer; and a surface layer, in this order, the surface layer including two or more charge transporting materials each including a reactive substituent and respectively having mutually different ionization potentials, in an amount of 90% by weight or more relative to the total solid content of the surface layer, and the content ratio X of each of the two or more charge transporting materials satisfying the following Formula (1).

Abstract: An electrophotographic photoreceptor is provided, which includes: a substrate; a photosensitive layer; and a surface protective layer, in this order, in which the protective layer contains a crosslinked product of a curable charge transporting material in a content of from about 90 to 98% by weight, and fluorinated resin particles in a content of from about 2 to 10% by weight, and the protective layer satisfies Formula (1): 0.5?b/a?1, wherein, “a” represents a ratio of fluorine atoms to the sum of carbon atoms, oxygen atoms, and fluorine atoms present in a region of the protective layer ranging from the photosensitive layer side surface thereof to a point corresponding to about ? of the thickness thereof, and “b” represents the ratio in a region of the protective layer ranging from the outer surface thereof to a point corresponding to about ? of the thickness thereof.

Abstract: An electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on a surface of the conductive substrate, an outermost layer of the photosensitive layer containing a crosslinked product formed from at least one charge transporting material having at least one substituent selected from the group consisting of —OH, —OCH3, —NH2, —SH, and —COOH and at least one selected from a guanamine compound or a melamine compound, the content of the at least one charge transporting material being at least about 90% by weight, and the content of the at least one selected from the guanamine compound or the melamine compound being from about 0.1% by weight to about 5% by weight.

Abstract: An electrophotographic photoreceptor includes a cylindrical conductive substrate that is formed of a metal or an alloy and has an average area of crystal grains of 100 ?m2 or greater; and a photosensitive layer that is provided on the conductive substrate.

Abstract: Provided is an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein an uppermost surface layer thereof is constituted with a cured film of a composition that contains at least two kinds of reactive charge transporting materials selected from a first reactive charge transporting material having an —OH group as a reactive functional group and a second reactive charge transporting material having an —OCH3 group as a reactive functional group, fluororesin particles, and an alkyl fluoride group-containing copolymer having repeating units represented by the following Structural Formulae A and B, and a relative dielectric constant ?r of the uppermost surface layer satisfies the following Formula (1):

Abstract: According to an aspect of the invention, an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on a surface of the conductive substrate is provided. In the electrophotographic photoreceptor, an outermost layer of the photosensitive layer containing a crosslinked product formed from at least one charge transporting material having at least one substituent selected from the group consisting of —OH, —OCH3, —NH2, —SH, and —COOH, an acidic substance, and at least one compound selected from the group consisting of compounds represented by the following formula (A) and compounds represented by the following formula (B).

Abstract: An electrophotographic photoreceptor is provided, which includes: a substrate; a photosensitive layer; and a surface protective layer, in this order, in which the protective layer contains a crosslinked product of a curable charge transporting material in a content of from about 90 to 98% by weight, and fluorinated resin particles in a content of from about 2 to 10% by weight, and the protective layer satisfies Formula (1): 0.5?b/a?1, wherein, “a” represents a ratio of fluorine atoms to the sum of carbon atoms, oxygen atoms, and fluorine atoms present in a region of the protective layer ranging from the photosensitive layer side surface thereof to a point corresponding to about ? of the thickness thereof, and “b” represents the ratio in a region of the protective layer ranging from the outer surface thereof to a point corresponding to about ? of the thickness thereof.

Abstract: The invention provides an electrophotographic photoreceptor having at least: a substrate; a photosensitive layer provided on the substrate; and an overcoat layer provided on the photosensitive layer. The overcoat layer of the photoreceptor includes at least: a cross-linked component that is obtained by cross-linking of at least one selected from a guanamine compound or a melamine compound and a charge-transporting material having at least one substituent group selected from —OH, —OCH3, —NH2, —SH, or —COOH; fluoro-resin particles; and a fluoro-alkyl group-containing copolymer. The ratio of fluorine atom present in an outermost surface of the overcoat layer as measured with energy dispersive X-ray analysis (EDS) is from approximately 1.0% by mass to approximately 20.0% by mass. The invention further provides a process cartridge, an image forming apparatus, and a method of producing the electrophotographic photoreceptor.

Abstract: There is provided an electrophotographic photoreceptor including a conductive substrate; an intermediate layer; a photosensitive layer; and a surface layer, in this order, the surface layer including two or more charge transporting materials each including a reactive substituent and respectively having mutually different ionization potentials, in an amount of 90% by weight or more relative to the total solid content of the surface layer, and the content ratio X of each of the two or more charge transporting materials satisfying the following Formula (1).

Abstract: According to an aspect of the invention, an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on a surface of the conductive substrate is provided. In the electrophotographic photoreceptor, an outermost layer of the photosensitive layer containing a crosslinked product formed from at least one charge transporting material having at least one substituent selected from the group consisting of —OH, —OCH3, —NH2, —SH, and —COOH, an acidic substance, and at least one compound selected from the group consisting of compounds represented by the following formula (A) and compounds represented by the following formula (B).

Abstract: An electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on a surface of the conductive substrate, an outermost layer of the photosensitive layer containing a crosslinked product formed from at least one charge transporting material having at least one substituent selected from the group consisting of —OH, —OCH3, —NH2, —SH, and —COOH and at least one selected from a guanamine compound or a melamine compound, the content of the at least one charge transporting material being at least about 90% by weight, and the content of the at least one selected from the guanamine compound or the melamine compound being from about 0.1% by weight to about 5% by weight.

Abstract: The invention provides an image forming apparatus comprising at least: an electrophotographic photoreceptor comprising at least a conductive substrate and a photosensitive layer provided on the conductive substrate; a charging device; an exposure device; a developing device; and a transfer device, wherein the exposure device is of a multi beam exposure system which has a surface emitting laser array having two or more light-emitting elements as an exposure light source and which scan the electrophotographic photoreceptor with plural light beams thereby forming electrostatic latent image, and wherein the outermost layer in the electrophotographic photoreceptor, positioned most distant from the conductive substrate, contains a silicon-containing resin containing at least a charge transporting compound or a characteristic group derived from a charge transporting compound, and having a structure in which bonds formed by crosslinking of an O atom with neighboring Si atoms are formed three dimensionally.