| 摘要 |
PURPOSE: To inhibit the illegal act caused by the remodeling of the system of an image forming device by inputting a reading image signal in a circuit deciding whether the signal is a specified original or not and discontinuing the reproduction of an original image if the signal is the specified original or converting the signal into a different image and outputting the image. CONSTITUTION: The reading signal from a scanner is inputted in an unfair use prevention circuit 105. The decision circuit 201 within the circuit 105 decides the pattern data corresponding to a specified image and a reading image signal by a pattern matching, for instance. When the specified original is not detected, an output is performed according to a random number generation rule. When the specified original is detected, the random number generation rule is changed and an interpreted image signal is made to be disturbed. This result is notified to a whole control part 106. When it is decided that the signal is not the specified original, the signal is made combined to an original image signal. |
