Abstract: A novel magenta developer system is provided which employs a 2,9-dimethylquinacridone pigment and a resin toner in combination with a carrier coated with resin containing copper tetra-4-(octadecylsulfonomido) phthalocyanine. Thus, a magenta developer is provided for the first time which is capable of employing a coated conventional carrier, thereby simplifying the color electrophotographic process. Color electrophotographic process employing this developer are also disclosed.

Abstract: A device and method are disclosed for supplying water or moisture to the surfaces of fuser members comprising water-degradable silicone rubbers. The water or moisture produces a degradation product of the silicone rubber which is a release material for electroscopic resin toners used in xerographic copiers.

Abstract: A toner in which at least a major portion of the resin component is a soft polymer encapsulated and dispersed in a tough polymer matrix in a plurality of discrete domains, instead of as a single core. A convenient method of providing such dispersion is by the use of a block, graft or shaded copolymer, as a dispersing agent, comprised of components which are identical to the soft and tough polymers. The toner is pressure fixable.

Abstract: Toner for use in the development of latent electrostatic images comprised of a resinous material and a colorant in which the resinous material is comprised of at least two polymers, the first of which has a glass transition temperature of at least 20.degree.C., and the second of which has a glass transition temperature of at least 5.degree.C. lower than the glass transition of the first. The polyblend is either a graft or block copolymer comprised of the aforesaid polymers, or a physical blend of such polymers which are incompatible with each other, prepared by dissolving the polymers in a common solvent in which the polymers are about equally soluble, followed by vigorous agitation and removal of the solvent to provide an incompatible solid mixture of the polymer.

Abstract: A liquid electrophotographic developer and processes for employing same are disclosed. The developer is composed of a liquid carrier, pigment, and a resin which results in a developed image that is abrasion resistant. The developer contains from 5 to 70% of the resin component which comprises an epoxy-ester.

Abstract: A photoreceptor cleaning composition is provided which includes a solvent blend that is capable of dissolving toner polymers and paper tars. This composition cleans effectively and efficiently without damage to the photoreceptor and without leaving residue. This solvent employs a blend of halogenated hydrocarbons having specific physical and chemical properties. These compositions are superior to known cleaners by virtue of their minimizing potential for fire explosion and hazard resulting from toxicity and volatility.

Abstract: A toner image is transferred from a toner substrate to a transfer sheet by bringing the toner substrate and the transfer sheet into face to face contact and applying a vibration thereto, while simultaneously applying pressure and/or an electrical field across the substrate and transfer sheet.