| 摘要 |
PURPOSE:To easily analyze encoding information such as serial number, etc., in the case the color of an original is approximate to a printing color (yellow) for the encoding information in a color copying machine preventing abuse by printing the encoding information on copying paper. CONSTITUTION:When the content of the original is stored in a buffer memory 23, the distribution of the yellow gradation of every picture element is retrieved by a CPU 1. In the case the color of the original is approximate to the printing color for the encoding information, data stored in registers 8 and 9 is properly changed, so that the size of a dot constituting the encoding information or the printing color is changed. |
