Patent ID: 7232632

Claim:
A method for forming a full color image, comprising: forming at least a yellow color toner image, a magenta color toner image and a cyan color toner image on a receiving material to form a full color image thereon; and fixing the full color image upon application of heat thereto while not contacting the full color image, wherein the yellow, magenta and cyan color toner images are respectively formed by yellow, magenta and cyan color toners and each comprises a binder resin and a pigment, wherein the yellow color toner image comprises a benzimidazolone pigment, the magenta color toner image comprises at least one of Naphthol Carmine F6B and a combination of Naphthol Carmine F6B and Naphthol Carmine FBB, and the cyan color toner image comprises β copper phthalocyanine, wherein the yellow color toner image has a position closer to the receiving material than any other color toner image when two or more of the color toner images including the yellow color toner image are overlaid, wherein the color toners have a melt viscosity not greater than 120 mPas·sec at 140° C., and wherein each of the color toner images has a haze factor not greater than 20% when the color toner images have a weight of 8 g/m 2 and are fixed.