| 摘要 |
PROBLEM TO BE SOLVED: To figure out various information from an image after image processing in the case of adding specific information to a received image. SOLUTION: In the case of visibly outputting a color image denoted by color image data received from an image scanner section 201 onto a recording medium by using visible color materials in a plurality of colors, a printer section 202 of a copying machine 100 receives prescribed identification information from an external device 101 and adds a specific pattern representing the prescribed identification information by using a color material in a color hardly identified from human eyes among the visible color materials in a plurality of the colors. |
