Xerox Corporation

Richard W Bigelow

Grace T Brewington

Richard L Schank

Richard P Germain

Kristen M Natale

Nero R Lindblad

Paul C Julien

Merlin E Scharfe

Douglas A Lundy

Andrew R Melnyk

Jeffrey William Drawe

Robert W Anderson

Herbert C Relyea

Walter F Leising

Susan J Kremer

Robert E Trott

A process for coating flexible belt seams including providing a flexible belt having an outwardly facing surface and a welded seam, forming a smooth liquid coating on the welded seam, the liquid coating comprising a film forming polymer and a fugitive liquid carrier in which the belt surface is substantially insoluble, and removing the fugitive liquid carrier to form a smooth solid coating on the seam.

Process for improving belts

A cleaning apparatus for removing residual developer material remaining on a surface of a printing machine is provided. The cleaning apparatus includes a movable cleaning brush having bristles. The brush is positioned adjacent to the surface so that as the movable brush is moved, the bristles contact the surface and the residual developer material is removed therefrom. A detoning device is positioned adjacent to the movable cleaning brush in a manner that permits the bristles to contact the detoning device as the movable cleaning brush is moved. The detoning device includes a plurality of hook-like and/or teeth-like members which dislodge the residual developer material from the bristles as they contact the hook-like members.

Apparatus for removing residual developer material from a surface of a

Additives contained in developer material used for developing latent electrostatic images on a charge retentive surface are intercepted prior to the developer material being moved into a development zone intermediate to the developer housing containing the developer material and the imaging surface. The additives removed are returned to the developer material for admixing therewith.

Pick-off roll for DAD development to preserve developer conductivity and

A process for extending the life of magnetic brush cleaners comprising carrier particles, a magnetic roll, and biased detone roll with a scraper by treating said carrier particles with a metal oxide.

Magnetic brush cleaning processes

Disclosed is a process for forming two-color images which comprises (1) charging an imaging member in an imaging apparatus; (2) creating on the member a latent image comprising areas of high, intermediate, and low potential; (3) developing the low areas of potential with a colored developer comprising a colored first toner comprising a polymer resin selected from the group consisting of styrene-butadiene copolymers, styrene-acrylate copolymers, styrene-methacrylate copolymers, and mixtures thereof, a blue first colored pigment of the formula C.sub.32 H.sub.16 N.sub.8 Cu, a cetyl pyridinium chloride charge control agent, a 3,5-di-tertbutyl salicylate compound charge control agent, colloidal silica surface external additives, and metal stearate salt surface external additives; a colored second toner comprising a polymer resin selected from the group consisting of styrene-butadiene copolymers, styrene-acrylate copolymers, styrene-methacrylate copolymers, and mixtures thereof, a cyan second colored pigment of the formula C.sub.104 H.sub.164 N.sub.12 O.sub.8 S.sub.4 Cu, a charge control agent selected from the group consisting of distearyl dimethyl ammonium methyl sulfate and distearyl dimethyl ammonium bisulfate, colloidal silica surface external additives, and metal stearate salt surface external additives; and a color carrier comprising a core and a coating selected from the group consisting of methyl terpolymer, polymethyl methacrylate, and a blend of from about 35 to about 65 percent by weight of polymethylmethacrylate and from about 35 to about 65 percent by weight of chlorotrifluoroethylene-vinyl chloride copolymer, wherein the coating contains from 0 to about 40 percent by weight of the coating of conductive particles; (4) subsequently developing the high areas of potential with a black developer comprising a black toner comprising a second resin present selected from the group consisting of polyesters, styrene-butadiene polymers, styrene-acrylate polymers, styrene-methacrylate polymers, and mixtures thereof, a black pigment, and a charge control additive; and a black carrier comprising a core and a coating selected from the group consisting of chlorotrifluoroethylene-vinyl chloride copolymer containing from 0 to about 40 percent by weight of conductive particles; polyvinylfluoride; and polyvinylchloride; and (5) transferring the developed two-color image to a substrate.

Tri-level imaging processes with adjustable color

A cleaning blade holder apparatus that has at least one end clamping mechanism on one side of the cleaning blade holder body. The end clamping mechanism is connected to the blade holder body by an adjustable spacer (e.g. springs) and set screws. The adjustable spacer spring loads the end clamp against the holder body so that when the screws are withdrawn the coupled blade holder body and end clamp expand to stretch the blade laterally. This places the blade in tension and creates uniform contact between the imaging surface and the cleaning blade.

Blade holder with end clamps

A surface layer on an imaging member has a surface roughness which reduces the force necessary for blade cleaning, reduces blade edge truck, reduces blade/substrate friction, inhibits the formation of toner-type deposits on the imaging surface, and/or reduces or eliminates light interference patterns resulting from coherent light, for example, from a raster output scanner.

Growing community of inventors

Webster, NY, United States of America

Richard W Bigelow