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Press the [Menu] key 
Select [Login]
Select [Enter] Enter the login user name Select [Accept]
Select [Enter] Enter the login user password Select [Accept]
If user authentication has already been specified, a screen for authentication appears. To log in as an administrator, enter the administrator's login user name and login password.
If you log in using administrator privilege, the name of the administrator logging in appears. When you log in with a user name that has multiple administrator privileges, one of the administrator privileges associated with that name is displayed.
If you try to log in from an operating screen, "You do not have the privileges to use this function. You can only change setting(s) as an administrator." appears. Press the [Menu] key to change the default.
