| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image-forming device that maintains secrecy and shortens time required for authentication work to improve the productivity of reproduction. <P>SOLUTION: The image-forming device has an image synthesis part 17 for synthesizing an original image and a control code for restricting the reproduction of the original image, and a printer part 18 for forming the image of image data having a control code synthesized by the image synthesis part 17. In this case, authentication information for allowing the reproduction of the next page is contained in each page of the original image, thus eliminating the need for inputting information for authentication each time when each page is read, and hence saving troubles required for the authentication. <P>COPYRIGHT: (C)2007,JPO&INPIT |
