Patent ID: 7522864

Claim:
An image forming apparatus comprising: a magenta developing unit operable to develop, using a toner of a magenta-type color, an electrostatic latent image corresponding to the toner of the magenta-type color; a cyan developing unit operable to develop, using a toner of a cyan-type color, an electrostatic latent image corresponding to the toner of the cyan-type color; a black developing unit operable to develop, using a toner of a black-type color, an electrostatic latent image corresponding to the toner of the black-type color; and an image processing unit operable to execute a pseudo full-color image forming process through which only three toner images of the magenta-type, cyan-type, and black-type colors developed by respective developing units are layered so as to form a color image, wherein the toner of the magenta-type color is for use in the pseudo full-color image forming and has a chromaticity point shifted in a direction closer to a yellow hue when plotted on a chromaticity diagram, in comparison with the toner of a genuine magenta color for use in full-color image forming including a case of using four colors that are the magenta-type, cyan-type, and black-type colors, and a yellow-type color.