| 摘要 |
<P>PROBLEM TO BE SOLVED: To further ensure the security of print data when transmitting the print data through a network and printing them. <P>SOLUTION: In the terminal apparatus 3, first data are generated by ciphering the print data, second data are generated by extracting partial data from the first data as key data, and the second data are transmitted from the terminal apparatus 3 to the printer 4. In the printer 4, the input of the key data is received, the first data are restored by combining the input key data and the transmitted second data, the print data are restored by deciphering the restored first data, and the restored print data are printed. <P>COPYRIGHT: (C)2007,JPO&INPIT |
