| 摘要 |
PROBLEM TO BE SOLVED: To perform an image formation preventing difference of color tone between the front side and the rear side, by the color image forming device forming color toner images on both side of transfer material across an intermediate transfer body for the toner image formed on the image forming body by rotary developing devices consisting of 4 colors of Y, M, C and K. SOLUTION: This device is controlled so as to make developing order reversed in making contact order of the developing device 13 facing to a photoreceptor drum 10 with the color image formation by making the rotary direction of the developing devices same in accordance with the front/rear side of transfer material. |
