Press [System Settings].
Press [Administrator Tools].
Press [Address Book Management].
Check that [Program/Change] is selected.
Select the name whose protection code you want to register.
You can search by the registered name, user code, fax number, folder name, e-mail address, or IP-Fax destination.
Press [Protection].
Press [Destination] or [Sender] under Use Name as.
Both [Destination] and [Sender] can be selected at the same time.
Press [Change] under Protection Code.
Enter a protection code using the number keys, and then press [].
Press [OK].
Press [Exit].
Specify a protection code of up to eight digits. You can also specify “Protection” without specifying a protection code.