| 摘要 |
<P>PROBLEM TO BE SOLVED: To output a high-quality image over a long term by restraining the extreme lowering of the productivity of an image forming apparatus and the short-term and long-term lowering of color reproducibility. <P>SOLUTION: When the image forming apparatus outputs the image, the density of a patch is measured and corrected by making it possible to adjust density/gradation characteristic. When the image forming apparatus does not output the image, the chromaticity of the patch is measured and corrected by making it possible to adjust color characteristic. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
