Device to be cha

摘要

An authentication code obtaining unit that obtains an authentication code for permitting use of the main function; and an authentication code obtaining unit that obtains an authentication request code corresponding to the authentication code from An authentication code input means for inputting an authentication code, an authentication code input means for inputting an authentication request code to the user, an authentication code input means for inputting an authentication code, an authentication code obtaining means Means for resuming use of the main function when the authentication code matches the authentication code obtained by the main function.