Home > Security > Lock the Machine Settings from the Control Panel > Setting Lock Overview > Turn Setting Lock On
Turn Setting Lock On
- Press Menu.
- Press
or 
to display the [General Setup] option, and then press OK. - (MFC-B7800DN/MFC-B7810DW) Press or to display the [Security] option, and then press OK.
- Press or to display the [Setting Lock] option, and then press OK.
- Press OK when the LCD displays [On].
- Enter the current four-digit password.
- Press OK.
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