Patent ID: 6942951

Claim:
An image forming method comprising the steps of: forming a full color toner image comprising a yellow toner image, a magenta toner image, a cyan toner image and a black toner image where each of the yellow toner image, the magenta toner image, the cyan toner image and the black toner image are individually prepared by the steps of: charging a surface of an electrostatic latent image carrier; exposing the charged surface of the electrostatic latent image carrier to a light beam using optical data corresponding to image data to form a latent image; developing the latent image formed on the surface of the electrostatic latent image carrier with a developer for electrophotography including a yellow toner, a magenta toner, a cyan toner or a black toner for electrophotography to form yellow, magenta, cyan or black toner image; and thermoelectrically transferring by heating the full color toner image formed on the surface of the electrostatic latent image carrier onto a surface of a recording medium and simultaneously fixing the full color toner image thereon by means of a fixing unit, wherein each of said yellow toner, magenta toner, cyan toner and black toner comprises a crystalline polyester resin, wherein a surface temperature of the fixing unit therein is higher by 10° C. or greater than the melting point of the crystalline polyester resins, and wherein the glass transition temperature of the outermost surface layer of the electrostatic latent image carrier is higher by 10° C. or greater than a surface temperature of the fixing unit.