Abstract:
A development agent containing toner that contains a binder resin having a crystalline resin that has a urethane and/or urea bond in its main chain, a coloring agent, and an organically modified inorganic laminate compound in which organic ions are at least partially substituted for ions present between layers of the organically modified inorganic laminate compound, and toner carrier that contains a core material whose surface is coated with a coating layer having a condensed compound of a melamine resin and/or a guanamine resin and an acrylic resin having a hydroxyl group.
Abstract:
A toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure are linked, and carbon black.
Abstract:
A method for marking employing a novel marking agent is disclosed wherein the marking agent is composed of a fine powder containing about 30 to 75% by volume of an ingredient which is insoluble in a solvent used to fix the marking agent.
Abstract:
UNIFORMLY CHARGING ELECTROCOPIC TONER COMPOSITIONS FOR USE IN DEVELOPING ELECTROSTATIC CHARGE PATTERNS ARE DESCRIBED. DRY DEVELOPER COMPOSITIONS CONTAINING A CARRIER AND SAID UNIFORMLY CHARGING TONER ARE ALSO DESCRIBED. THE TONER COMPOSITIONS CONTAIN AROMATIC RESINS CHARACTERIZED BY A RECURRING UNIT CONTAINING ALTERNATING METHYLENE GROUPS AND CERTAIN AROMATIC GROUPS.