| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of enhancing gradation reproducibility while improving the miniaturization and printing speed of the apparatus. SOLUTION: The image forming apparatus 100 includes a plurality of photoreceptors 115, 125, 135, 145 which are image carriers, and developing devices 112, 113, 122, 123, 132, 133, 142, 143 provided one or more at each of the photoreceptors 115, 125, 135, 145. The developing devices forming the images of the same hue are provided at the same photoreceptors 115, 125, 135, 145, and the image carriers including the developing devices forming achromatic color images are provided upstream in the traveling direction of a primary transfer belt 104 onto which toner images are transferred. The hypochromic developing devices forming hypochromic images out of the developing devices forming the images of the same hue are provided upstream in the rotating direction of the photoreceptors 115, 125, 135, 145. COPYRIGHT: (C)2009,JPO&INPIT
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