Log in as the supervisor from the control panel.
For details on how to log in, see Administrator Login Method.
Press [System Settings].
Press [Administrator Tools].
Press [] 3 times.
Press [Program/Change Administrator].
Select the administrator you want to reset.
Press [Change] for "Login Password".
Enter the login password, and then press [OK].
Enter the login password for confirmation again, and then press [OK].
Press [OK].
Press [Exit].
You will be automatically logged out.
The supervisor can change the administrator's login password but not his or her login user name.