| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming apparatus by which productivity or durability of one point color image formation can be improved. SOLUTION: In the image forming apparatus of an electrophotographic method provided with a developing devices for 3 primary colors for subtractive color process and black (black developing device 31K) and achieving full color by superposing the 3 primary colors and black when developing to a photoreceptor drum (image carrier) 1 or when transferring to paper, the developing device (red developing device 31r) for colored developer (red toner) which is different from the 3 primary colors and not black is provided as the developing device. |
