MULTICOLOR IMAGE FORMING DEVICE AND TONER USED FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a multicolor image forming device which makes multicolor image forming and printing of an MICR font possible with the same device, has a high degree of a security function and makes the selective use of the security function possible according to applications. SOLUTION: This multicolor image forming device of a tandem type has plural image carrying members which are disposed in juxtaposition, plural developing means which respectively form prescribed color toner images on the plural image carrying members, plural transfer means which successively transfer the color toner images to transfer materials transported by transporting means and fixing means which fix the toner images transferred onto the transfer materials. One among the plural developing means is the developing means to form the magnetic fluorescent toner images allowing the magnetic reading of the toner images after fixation by the magnetic fluorescent toners containing a binder resin, magnetic powder and fluorescent material which emits fluorescence when irradiated with UV rays. The other plural developing among the plural developing means are the developing means to form the nonmagnetic toner images by nonmagnetic toners.