摘要:
An electrophotographic process, which comprises the steps of: forming an electrostatic latent image on an amorphous silicon photoreceptor; developing the electrostatic latent image with a capsule toner; superimposing transfer paper on the capsule toner image thus formed; and simultaneously transferring and fixing the image on the paper by applying pressure.
摘要:
An electrophotographic photoreceptor is disclosed, comprising a support having thereon a light reflection preventive layer comprising a porous anodized film and a photosensitive layer in this order, in which a metal is filled in the pores of the porous anodized film. The anodized film prevents appearance of an interference band when the photoreceptor is applied to a laser beam printer.
摘要:
An electrophotographic photoreceptor is disclosed, comprising at least a substrate having thereon a charge transporting layer and a charge generating layer, wherein the charge transporting layer is a porous anodized aluminum film which is formed by anodic oxidation of a substrate at least a surface of which comprises aluminum or an aluminum alloy, with the pores thereof being filled with a metal. The electrophotographic photoreceptor can be produced by a process comprising subjecting a substrate at least a surface of which comprises aluminum or an aluminum alloy to anodic oxidation in a 1 to 30% by weight acid aqueous solution containing at least one inorganic polybasic acid selected from the group consisting of sulfuric acid, phosphoric acid, chromic acid, etc. or at least one organic polybasic acid selected from the group consisting of oxalic acid, malonic acid, tartaric acid, etc. by a direct current at a current density of from 0.1 to 10 A.multidot.dm.sup.-2 or a substantially equal electrical current to form a porous anodized aluminum film on the substrate, filling a metal in the pores of said porous anodized aluminum film by electrolysis in an aqueous solution containing a salt of the metal to form a charge transporting layer comprising the metal-filled porous anodized aluminum film, and then forming a charge generating layer on the charge transporting layer. The metal-filled porous anodized aluminum film is free from defects and exhibits satisfactory adhesion to a charge generating layer and excellent mechanical strength.
摘要:
An electrophotographic photoreceptor comprising: an electrically conductive substrate, a charge injection blocking layer formed on said electrically conductive substrate, a photoconductive layer comprising a single layer formed on said charge injection blocking layer, said photoconductive layer comprising amorphous silicon containing boron, a positive hole capturing layer formed on said photoconductive layer, said positive hole capturing layer being selected from the group comprising amorphous silicon containing less than 50 ppm boron and amorphous silicon being substantially composed of hydrogen and silicon atoms, and a surface layer formed on said positive hole capturing layer. The boron concentration contained in said photoconductive layer is 0.01-1000 ppm. The surface layer is formed by amorphous silicon nitride, amorphous silicon oxide, amorphous silicon carbide or amorphous carbon as a main body. The charge injection blocking layer has amorphous silicon as a main body and contains a group V element. The electrophotographic photoreceptor is excellent in the dark attenuation, the sensitivity and electrification capacity and does not cause image flow or image fogging on copied images obtained by using the photoreceptor.
摘要:
An electrophotographic photoreceptor is disclosed, comprising an electrically conductive substrate having provided thereon at least a photoconductive layer and a surface layer, wherein the photoconductive layer comprises (a) a charge transporting layer mainly composed of amorphous silicon containing at least one of hydrogen and a halogen and at least one selected from carbon, oxygen, and nitrogen and (b) a charge generating layer composed of amorphous silicon containing at least one of hydrogen and a halogen or amorphous silicon containing at least one of hydrogen and a halogen and at least one selected from germanium and tin, and the surface layer is composed of at least one of an organic polymer material and an inorganic polymer material having dispersed therein an electrically conductive fine powder. The photoreceptor shows less dark decay of the charged potential, does not cause image blurring under a high-humidity condition, and forms an image having no moire in a laser printer using a coherent light source.
摘要:
An electrophotographic photoreceptor comprising a conductive substrate, a photoconductive layer formed on the substrate, and a surface layer formed on the photoconductive layer, wherein the surface layer comprises a polymer mainly composed of a siloxane bond and an imide bond. The photoreceptor has small dark decay and excellent mechanical strength and causes no image blurring under high humidity conditions and therefore can be used in a general electrophotographic process. When used in a laser printer using a coherent light source, the photoreceptor produces high quality images free from a Moire fringe.
摘要:
An electrophotographic light-sensitive material is disclosed, comprising an elecrically conductive substrate having thereon at least a photoconductive layer and a surface layer in this order, wherein the photoconductive layer is made mainly of amorphous silicon containing hydrogen, the surface layer is made of a high molecular weight material as a binder with an electrically conductive metal oxide powder dispersed therein, and at least one layer made mainly of amorphous silicon carbide, amorphous silicon nitride, amorphous silicon oxide or amorphous carbon each containing hydrogen is provided as an intermediate layer between the surface layer and the photoconductive layers.
摘要:
A dielectric member for receiving an electrostatic latent image having excellent chargeability, high surface hardness and high reliability of structure is presented.It is a dielectric member for receiving an electrostatic image comprising a substrate having thereon a porous anodic aluminum oxide film and an inorganic film formed on said porous anodic aluminum oxide film, wherein the inside of the pores of the porous anodic aluminum oxide film are filled with a dielectric substance having a low relative dielectric constant or are evacuated in the vacuum state and then the pores are clogged with said inorganic film.
摘要:
An electrophotographic photoreceptor is disclosed, comprising a substrate, a charge transporting layer and a charge generating layer, wherein at least the surface of the substrate comprises aluminum or an aluminum alloy, and the charge transporting layer comprises an anodized aluminum film formed by anodizing the surface of the substrate.
摘要:
An electrophotographic photoreceptor having a photosensitive layer essentially made of amorphous silicon formed over a support, and a surface layer made of amorphous silicon formed over the photosensitive layer. The amorphous silicon of the photosensitive layer includes boron of 0.1-5 ppm, and the amorphous silicon of the surface layer includes nitrogen. The layers of material formed over the support include a charge blocking layer.