| 摘要 |
PROBLEM TO BE SOLVED: To drastically improve security of a document obtained by outputting electronized contents by deciding whether the document contents are altered only by comparing the document contents obtained by printing electronic information with the ciphered contents of the document contents. SOLUTION: When the electronic information is registered, the electronic information and the ciphered information of the electronic information are made to be a pair and stored in an information processor 3b, and when a printer 6 prints the contents of the electronic information registered in the processor 3b and ejects a document 7, the ciphered information, etc., for the electronic information is printed together with the electronic information. |
