IMAGE FORMING DEVICE

PROBLEM TO BE SOLVED: To efficiently reduce the number of motors in an image forming device. SOLUTION: This image forming device is provided with a plurality of photoreceptor drums corresponding to respective color toner images developing rollers installed corresponding to the respective photoreceptor drums, an intermediate transfer belt on which the respective color toner images developed on the photoreceptor drums are superposed on each other and transferred so as to form a color toner image, a 1st motor 23 for generating rotational force, a 1st transmission system 25 for transmitting the rotational force from the 1st motor 23 to a 1st driven system being the photoreceptor drums on which an electrostatic latent image corresponding to the toner image other than the black image is formed and the developing rollers corresponding to the photoreceptor drums, a 2nd motor 24 for generating rotational force, and a 2nd transmission system 26 for transmitting the rotational force from the 2nd motor 24 to a 2nd driven system including the photoreceptor drum on which an electrostatic latent image corresponding to the black toner image is formed and the developing roller corresponding to the photoreceptor drum and excluding the 1st driven system.