| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve a structure with which a change in hue of high-order colors when using an image forming device. <P>SOLUTION: When an image is formed by four colors of Y, M, C, K, printing duties DY, DM, DC, DK are determined by a video signal counting part. The maximum value D<SB>max</SB>out of the printing duties is determined, and the differences between the maximum value D<SB>max</SB>and the respective printing duties are determined. A toner forced discharge operation is performed depending on the differences. Thus, the toner consumption in a developer for each color becomes closer to each other, and the trend of density variation of toner images is kept approximately unchanged, and a change in hue is suppressed. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
