Prohibiting PC Faxing
You can prohibit users from PC faxing (faxing from a computer).
1
Tap <Menu> in the <Home> Screen.
2
Tap <Fax Settings>.
3
Select <TX Function Settings> 
<Allow Fax Driver TX>.
<Allow Fax Driver TX>.If a screen for entering a PIN is displayed, enter the PIN with the numeric keys and tap <Apply>. Setting the System Manager PIN
4
Tap <Off>.
<Off>Disables PC faxing.
<On>Enables PC faxing.