摘要:
A novel yellow developer system is provided which employs a Yellow 29 toner in combination with a carrier coated with resin containing copper tetra-4-(octadecylsulfonomido) phthalocyanine. This developer is found to yield prints of exceptional quality and provides long developer life. Processes employing this developer in a color electrophotographic process are also disclosed.
摘要:
A novel yellow electrostatographic colorant is disclosed. This colorant may be employed as an electrostatographic toner or developer material. Electrophotographic processes are disclosed employing this colorant. When employed as an electrophotographic developing material, this colorant is found to possess superior triboelectric properties among others which result in superior electrophotographic machine life than known yellow colorants.
摘要:
In an electrophoretic reproduction process wherein a colored reproduction of an original is obtained by sequentially electrophoretically generating at least two visible monochromatic images, and superimposing said images in registry upon a copy web to form a colored reproduction, an improvement is provided comprising essentially eliminating back migration of marking materials from the copy web to the imaging suspension in the second and subsequent image generating steps by employing, in each instance, marking materials comprising a solvent tackifiable polymer and a colorant and/or a copy web containing a solvent tackifiable polymer, and applying to the copy web at least a partial solvent for said tackifiable polymer in an amount sufficient to render said polymer at least partially tacky before the second and before each subsequent image generating step.
摘要:
An image-bearing article used in liquid contact electrostatic printing (CEP) is formed from polymers that meet the requisite conformance and heat stability for the CEP process. Excessive absorption of toner carrier liquids by the image-bearing article in liquid CEP leads to the deterioration of the image-bearing article and reduces the useful life of the image-bearing article. The absorption of the toner carrier fluid may be controlled by the addition of oxides, silicone elastomers containing phenyl end groups, fluorosilicones or increasing the cross-linking density of the methyl silicones.
摘要:
A composition comprising a latex fluorocarbon elastomer and fluorinated carbon, xerographic component surfaces comprising such latex fluorocarbon elastomer and fluorinated carbon compositions, and image forming apparatii including such xerographic components are disclosed herein.
摘要:
A biasable component having a fluorinated carbon filled polymer foam layer which exhibits controlled electrical conductivity and improved hardness is set forth.
摘要:
A seamed belt composed of: (a) a belt material including a polyimide and having two ends, each end having a plurality of mating elements, the two ends being joined to form a seam having the mating elements of the two ends in an interlocking relationship where the interlocked mating elements define a space between the interlocked mating elements; and (b) an adhesive present in the space between the interlocked mating elements, wherein the adhesive is selected from the group consisting of: (i) a polyvinyl butyral composition including: a terpolymer of polyvinyl butyral, polyvinyl alcohol, and polyvinyl acetate, and a plasticizer; (ii) a polyurethane composition including a polyester polyurethane polymer; and (iii) a blended composition including an acrylonitrile and butadiene copolymer and a phenol formaldehyde polymer.
摘要:
An electrostatographic printing machine and apparatus that utilizes a two layer roll charger for contact charging of photoreceptors. The charger includes a liquid retentive foam layer fitted over an electrically conductive shaft. The shaft can be solid or porous, the later requiring a separate liquid reservoir. The second layer is a thin liquid permeable member, over the foam layer, which transmits water at a slow, but controlled rate during the rotation of the roller. The roller may rotate synchronously with the photoreceptor or be allowed to slip on the photoreceptor surface to improve uniformity and contact. The membrane increases life by controlling the runout of liquid from the repository. Also, the present invention permits charging over photoreceptor pinholes.
摘要:
A biasable transfer system member for use in an electrographic printing apparatus for attracting electrically charged particles from an imaging substrate to the biasable transfer system member includes an electrically conductive core and an outer layer of a fluorinated carbon filled elastomer wherein the fluorinated carbon has a fluorine content of about 10 to about 30 weight percent based on the weight of fluorinated carbon.
摘要:
A resistive transfer component having a fluorinated carbon filled fluoroelastomer, and in embodiments, the resistive transfer component with an optional polyimide substrate, and an optional outer silicone release layer.