摘要:
An image forming system uses: an organic photoreceptor; and a toner for electrostatic charge image development containing toner particles, wherein the organic photoreceptor has a protective layer containing a cured resin; the toner particle has a form in which at least one type of lubricant particle and at least one type of non-lubricant particle are contained or adhered on a surface of a plurality of convex portions or on a surface between the plurality of convex portions, of a toner base particle having the plurality of convex portions thereon; and an average spacing D1 of the convex portions on the surface of the toner base particle, a median diameter D2 of the lubricant particle having the smallest median diameter, and a median diameter D3 of the non-lubricant particle having the largest median diameter, satisfy the relationship of the following formula (1): Formula (1) D3≤D1≤D2.
摘要:
An image forming apparatus and a process cartridge having a photoreceptor including an electroconductive substrate; and a photosensitive layer located overlying the electroconductive substrate and comprising a charge generation material, a charge transport material and an inorganic filler, wherein the content of the inorganic filler at a surface side of the photosensitive layer is greater than that at a bottom side of the photosensitive layer near the electroconductive substrate, and wherein an outermost layer of the photoreceptor has a water vapor permeability not greater than 50 g·m31 2·24 h−1.
摘要翻译:一种图像形成装置和具有感光体的处理盒,该感光体包括导电性基板; 以及位于导电基底上的感光层,其包含电荷产生材料,电荷传输材料和无机填料,其中感光层表面侧的无机填料的含量大于在感光层的底侧的含量 感光层,并且其中感光体的最外层具有不大于50g / cm 2·24h -1 -1的水蒸气渗透性。
摘要:
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.
摘要:
A charge containing element including a conductive layer; a dielectric layer formed on the conductive layer wherein the dielectric layer is formed by the thermal decomposition of an organic component of the dissolved metallo-organic material and a reaction of the metallic portion of the material with oxygen thereby causing the dielectric layer to have charge holding properties; and electrodes coupled to the element to permit the application or discharge of charge from the dielectric layer.
摘要:
Provided is a composite material comprising a carrier, a conductive layer formed on the carrier, and a dielectric layer containing spacer particles formed on the conductive layer. The dielectric layer has an abrasion factor less than about 0.3 determined by a brass shim abrasion method, and a substantially uniform distribution of spacer particles substantially free of flat spots greater than about 100 microns in the x-y direction and 1500 square microns in area on any part of the surface. The spacer particles of the dielectric layer of the composite material preferably are amorphous silica. The composite material is useful in electrostatic imaging technology and provides images substantially free of defects, including artifacts or flares, dropouts and nib writing.Also provided is a process which permits the creation of very stable dispersions of solid particles in a dispersing medium useful for both the dielectric and conductive layers of the composite material of the invention.A white or colored conductive ground plane is also provided.
摘要:
Image forming equipment for applying heat to a charged image carrier to attenuate part of the potential of the image carrier in order to form a latent image on the image carrier. The surface of a dielectric image carrier is charged by a charger and a thermal print head is driven in response to image information in order to form a latent image on the charged surface of the image carrier. A developing roller applies a liquid developer to the latent image and presses it against the portion where the potential has been lowered. The resulting toner image formed on the image carrier is fixed on a paper sheet fed from a paper feeding device or is directly fixed on the image carrier. The image carrier is formed of polyethylene terephthalate or a mixture of polybutylene terephthalate and silicon dioxide.
摘要:
There is disclosed an electrostatic recording film comprising an insulating film having provided thereon an electrocondcutive layer and an insulating layer in this sequence, wherein the insulating layer comprises at least a high polymeric binder, insulating spacer grains and electroconductive grains prepared by coating an electrocondcutive material on the surface of organic polymer grains. In the present invention, it is possible to coat a coating solution comprising the above components at a high speed and the film thus prepared can always provide stably a sharp image having little fog, pepper speck and scratchwise image dropout.
摘要:
An electrostatic recording film comprising a insulating film, a conductive layer and a dielectric layer laminated in this order, wherein said dielectric layer consisting essentially of a polymer binder, insulating grains and conductive powders and said conductive powders are fibrous conductive powders, is disclosed. The electrostatic recording film of the present invention makes it possible to give a clear and sharp image suffering from little line cutout or spotting.
摘要:
A material consists of an electrically conducting support and a dielectric layer containing in % by weight: 17-80 of a polymeric binder and 20-83 of a finely divided mixed pyrogenic silicon and titanium oxide containing between 10 and 50% by weight of titanium.
摘要:
Electrically conductive paper is coated with an insulating coating which is an aqueous latex of an aqueous emulsion copolymer of monoethylenically unsaturated monomers comprising from 5% to 40% of copolymerized acrylamide or a monoethylenic derivative thereof, preferably isobutoxymethyl acrylamide. A proportion of monoethylenically unsaturated carboxylic acid is preferably included in the copolymer.