On the Home screen, press [Settings].
On the Settings screen, press [System Settings].
Press [Settings for Administrator] [Authentication/Charge]
[Administrator Authentication/User Authentication/App Auth.]
[Register/Change Administrator] [Set Administrator Login User
Name/Login Password].
Press [Supervisor].
Enter the login user name for Login User Name, and then press [Done].
Press [Change] next to Login Password.
Enter the login password for New Password, and then press [Done].
Enter the login password for Confirm New Password again, and then
press [Done].