| 摘要 |
PURPOSE:To prevent copying of a specified original by deciding the specified original in accordance with an important degree. CONSTITUTION:Allocation to ROM is changed in accordance with the important degree of the specified original (which original is not to be copied least). Namely, the specified originals (eight kinds) which are held in addresses from 18000 to 1FFFF differ from the other specified originals (48 kinds) and they are decided to MCY at the time of forming all images. Thus, the most secure decision result can be obtained. The specified originals (24 kinds) which are held at addresses from 00000 to 17FFF are decided when an M-image is formed at the time of first scanning and when a Y-image is formed at the time of third scanning. When the existence of the specified originals is detected at the time of forming the M-image or the Y-image, an output image is painted out in black at the time of forming a K-images so as to prevent the copying of the specified original. |
