摘要:
A process including providing a flexible substantially rectangular sheet having a first major exterior surface opposite and parallel to a second major exterior surface, removing or displacing material from the first major exterior surface adjacent and parallel to a first edge of the sheet to form a new first surface having an elongated, curvilinear "S" shaped profile when viewed in a direction parallel to the first edge, overlapping the new first surface and a second surface adjacent a second edge of the sheet whereby the first new surface contacts the second surface to form a mated surface region, the second surface being adjacent to or part of the second major exterior surface to form the sheet into a loop, the second edge being at an end of the sheet opposite from the first edge, and permanently joining the new first surface to the second surface into a seam to form a seamed belt of this invention. The resulting welded belt has a seam thickness of less than about 120 percent of the total thickness of the belt.
摘要:
A photoreceptor and method eliminate interference-fringe print defect due to interference effects caused by reflected beams from various interfaces in a multilayered photoreceptor. The substrate surface is formed with specific dimensions so as to enable the coating of the substrate with an undercoat film including, for example, an organometallic compound or an organometallic chelate compound such as any suitable hydrolyzable organozirconium, organotitanium or organoaluminum compound with a silane. Elimination of the "pepper spot" print defect is accomplished without the addition of a thickening agent to the undercoat film.
摘要:
An apparatus for cleaning a charge retentive surface of a photoreceptor which includes a cleaning blade for removing debris from the charge retentive surface of a photoreceptor. In the environment of a xerographic copier and/or printer, corona effluents are emitted by the high voltage charging devices. These effluents, which are strong oxidizing agents, may be adsorbed by or otherwise attach a cleaning blade polymer matrix. Thereafter, such corona species outgassing from a blade may chemically and/or otherwise attack the photoreceptor during prolonged blade/photoreceptor contact, resulting in print/copy defects, as well as permanent damage to the photoreceptor and/or cleaning blade. The present invention relates to impregnating or otherwise treating the cleaning blade with an antioxidant such that its presence in the blade polymer matrix can prevent corona species penetration or accumulation by chemically neutralizing and destroying the species upon exposure. In one example, the cleaning blade is impregnated with an antioxidant such as 1,3-Diphenylisobenzofuran. Such preventive measures to hinder or eliminate the corona species absorption and accumulation in the cleaning blade polymer matrix can, in principle, be employed to resolve the corona species outgassing problem.
摘要:
An electrophotographic imaging member containing a supporting substrate having an electrically conductive surface comprising charge injecting material, a charge blocking layer including a water insoluble high molecular weight unmodified hydroxy methacrylate polymer and at least one photoconductive layer, the charge blocking layer having a surface resistivity greater than about 10.sup.10 ohm/sq. This imaging member may be employed in an electrostatographic imaging process.
摘要:
An electrostatographic imaging member having a supporting substrate, the substrate including at least one material selected from the group consisting of polyether ether ketones, polyphenylene sulfide, polysulfones, polyether imides, polyamide imides and compounds (1), (2) and (3) as follow: ##STR1## (where n represents the degree of polymerization).
摘要:
An electrostatographic imaging member including a supporting substrate and an outer layer on the imaging side of the imaging member, the outer layer including minute spheres of a high molecular weight polysiloxane homopolymer homogeneously dispersed in a continuous film forming polymer matrix. This imaging member may be used in an electrostatographic imaging process which includes the steps of forming an electrostatic latent image on the imaging surface, developing the electrostatic latent image with marking particles to form marking particle images in conformance with the electrostatic latent image, transferring the marking particles image to a receiving member, cleaning the imaging surface and repeating the electrostatic latent image forming, developing, transferring and cleaning steps at least once. This imaging member is prepared by dissolving the high molecular weight polysiloxane homopolymer and film forming polymer in at least one solvent and forming a dried outer layer in which the high molecular weight polysiloxane homopolymer is phase separated out and homogeneously dispersed as minute spheres in the continuous film forming polymer matrix.
摘要:
A cleaning blade which is made from an elastomeric matrix having inorganic particulates homogenously dispersed therein. The cleaning blade is used in an electrophotographic printing machine to remove residual particles from a photoconductive imaging member surface.
摘要:
A process for preparing a device containing a continuous, semi-transparent conductive layer including providing a substrate, applying to the substrate a coating containing a dispersion of conductive particles having an average particle size less than about 1 micrometer and having an acidic or neutral outer surface in a basic solution containing a film forming polymer dissolved in a solvent, and drying the coating to remove the solvent and form the continuous, semi-transparent conductive layer. The article prepared by this process may be used in an electrophotographic imaging process.
摘要:
A photoconductive imaging member comprised of a supporting substrate, a ground plane layer, a hole blocking-adhesive layer comprised of a polyphosphazene, including polyorganophosphazenes, a photogenerating layer, and a hole transport layer.
摘要:
A flexible electrophotographic imaging member comprising at least one electrophotographic imaging layer, a supporting substrate layer having an electrically conductive surface and an anti-curl layer, the anti-curl layer comprising a film forming binder and from about 3 percent by weight to about 30 percent by weight, based on the total weight of said anti-curl backing layer, of a copolyester resin reaction product of terephthalic acid, isophthalic acid, ethylene glycol and 2,2-dimethyl-1-propane diol. This flexible electrophotographic imaging member is cycled in an electrostatographic imaging system to produce toner images.