Image forming device with forgery prevention
    41.
    发明授权
    Image forming device with forgery prevention 失效
    防伪图像形成装置

    公开(公告)号:US5568268A

    公开(公告)日:1996-10-22

    申请号:US424669

    申请日:1995-04-19

    摘要: An image forming device, such as a color copying machine or a color printer, which processes an input image signal, thereby obtains an output image signal, and forms an output image on the basis of the output image signal. In the image forming device, an information input unit writes some information identifying the copying machine to an area in an information storing unit at the time when a power source is turned on for the copying machine for the first time after the assembly thereof. When the power source is turned on for a second and any subsequent times for the copying machine, the copying machine copies an original sheet in such a state of the machine that the information stored in the area of the information storing unit is added to the output image in the form of a pursuit image which it is hard or impossible to recognize with the human eyes.

    摘要翻译: 一种图像形成装置,例如彩色复印机或彩色打印机,其处理输入图像信号,从而获得输出图像信号,并且基于输出图像信号形成输出图像。 在图像形成装置中,信息输入单元在组装之后首次将复印机的电源接通时将识别复印机的一些信息写入信息存储单元中的区域。 当复印机的电源接通第二次和随后的时间时,复印机在机器的状态下复印原稿,使得存储在信息存储单元的区域中的信息被添加到输出 以追求图像的形式形成图像,这是难以或不可能用人的眼睛识别的。