Patent ID: 7865725
Filing Date: 2011-01-04
Classification: G06F,H04L

Abstract:
1. A printing device to print data which requires security, comprising: an interface part receiving a request to print data by a user and a security level of the data requested to be printed; an authentication part to determine whether to permit a printing of the data requested to be printed based on whether a pre-stored user level of the user is higher than the security level of the requested data, the authentication part comprising a password processing part to randomly generate a password and transmit the password to the user, the password processing part to determine whether the generated password and a password inputted by the user and obtained by the interface part are equal to each other; a printing part to print the data requested to be printed; and a controller to transmit the data requested to be printed received through the interface part to the printing part if the authentication part permits the printing.