Select Settings on the printer's control panel.
Select General Settings > System Administration > Security Settings > Admin Settings > Admin Password > Change.
Enter a current password.
See the related information below for the default of administrator password.
Follow the on-screen instructions to set a new password.
To restore the administrator password to its default, select the following menus on the control panel.
General Settings > System Administration > Security Settings > Admin Settings > Admin Password > Restore Default Settings