| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide image forming apparatus and an image forming method method for holding the secrecy of documents and helping the trace of document copies, and a recording medium with a program for the method recorded thereon. <P>SOLUTION: In the case of outputting a hard copy of a prepared original, information of the image forming apparatus or attached information of a document is embedded in a hard copy, and in the case of copying the hard copy by the image forming apparatus provided with an optical reading method, the padded information is extracted and analyzed and the validity of a copier can be certified by certifying a living body through a network, so that the secrecy of the document is held and the trace of document copies can be helped. <P>COPYRIGHT: (C)2004,JPO</p> |
