| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device capable of reducing the number of developing means and image exposing means, preventing the occurrence of image roughness at a highlight part (low density part) and improving gradation reproduction at a dynamic range in a high density part. SOLUTION: In this image forming device, black toner consists only of thick toner, and the low density part of an achromatic color is formed at least by magenta and cyan thin toner, and the high density part of the achromatic color is formed by the black toner. |
