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:
In an electrophotographic system, an electrostatic latent image as formed on a photoreceptor is developed with a developing agent to form a toner image thereon, a transfer paper is laid over the toner image and pressure is applied to the photoreceptor and the transfer paper so as to transfer or simultaneously transfer and fix the toner image onto the transfer paper. The photoreceptor is one having a surface protecting layer and a light-sensitive layer made of a hydrogenated and/or fluorinated amorphous silicon. The light-sensitive layer and the surface protecting layer of the photoreceptor are uniformly heated to a constant temperature. A charging device or a discharging brush or blade is used as a device of discharging the charges of the photoreceptor after the transference.
摘要:
A negative-charging electrophotographic photoreceptor comprising an electrically conductive support having consecutively thereon (a) a charge injection prevention layer having a thickness of from 0.15 to 10 .mu.m, (b) a photoconductive layer, and (c) a surface layer, the charge injection prevention layer (a) comprising amorphous silicon containing at least one of a hydrogen atom and a halogen atom, and containing a nitrogen atom in an atomic ratio of from 0.01 to 0.65 to the silicon atom, the photoconductive layer (b) comprising amorphous silicon containing at least one of a hydrogen atom and a halogen atom.
摘要:
The improved dielectric member for carrying electrostatic latent image comprises a support and an overlying dielectric layer, with a thickness of from 3 to 70 .mu.m, that is formed of an polysiloxane/amic acid copolymer. The dielectric member has a relative dielectric constant of 2.0 to 6.0, a surface hardness of 300 to 1,500 on the Vickers scale, and exhibits high reliability in operating characteristics. It can be produced by a process in which the dielectric layer is formed on the support by applying an inorganic polymer compound film-forming material onto the support, and heating the coated layer in vacuum to cure.
摘要:
An electrophotographic photoreceptor having excellent dark resistance is disclosed, which comprises a photoconductive layer and a surface layer formed successively on a conductive substrate, wherein the photoconductive layer mainly comprises hydrogen-containing amorphous silicon, and the surface layer comprises amorphous carbon which contains not more than 50 atomic percent of hydrogen.
摘要:
An electrophotographic photoreceptor is disclosed, comprising a substrate having thereon a light-reflection preventing layer comprising an anodized aluminum film and a photosensitive layer in this order. And 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 neutral aqueous solution containing at least one of boric acid, boric acid salt, a phosphoric acid salt, etc. in a concentration of from 1 to 30% by weight or an acidic aqueous solution containing at least one of sulfuric acid, phosphoric acid, oxalic acid, chromic acid, etc. in a concentration of from 1 to 30% by weight to form an anodized aluminum film as a light reflection-preventing layer on the substrate, and then forming a photosensitive layer on said anodized aluminum film. The anodized aluminum film prevents appearance of an interference fringe when the photoreceptor is applied to a laser beam printer.
摘要:
A method for preparing an electrophotographic photoreceptor is disclosed, which comprises a substrate having thereon a charge generating layer containing an amorphous silicon as a main component and a charge transporting layer containing aluminum oxide as a main component, wherein the charge transporting layer is formed by an ion plating method while introducing oxygen gas.
摘要:
A photoreceptor for electrophotography, comprising: a photoconductive layer substantially composed of amorphous silicon, and first, second and third surface layers substantially composed of amorphous silicon added with nitrogen atom, those layers being formed on a support. The thickness d.sub.1, d.sub.2 and d.sub.3 of the first, second and third surface layers satisfies the following relation: d.sub.2 >d.sub.1 and d.sub.2 >d.sub.3, and the nitrogen concentrations c.sub.1, c.sub.2 and c.sub.3 of said first, second and third surface layers satisfy the following relation: c.sub.3 >c.sub.2 >c.sub.1.