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2
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TX Lock 2
TX Lock lets you prevent unauthorized 
access to the machine.
While TX Lock is On, the following operations 
are available:
 Receiving faxes
 PC-Fax Receive
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(If PC-Fax Receive was already On)
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While the TX Lock feature is turned on, your machine 
will receive faxes and store them in its memory. 
Then, when TX Lock is turned off, the faxes will be 
sent to your chosen PC.
While TX Lock is On, the following operations 
are NOT available:
 Operation from the control panel
 PC printing 
If you forget the TX Lock password, call 
Brother Customer Service.
 
Setting and changing the 
TX Lock password 2
If you have already set the password, you 
will not need to set it again.
 
Setting the password 2
Make a careful note of your password.
a Press Menú (Menu), 3, 0, 1.
b Enter a four-digit number for the 
password.
Press OK.
c When the LCD displays Verify:, 
reenter the password.
Press OK.
d Press Detener/Salir (Stop/Exit).
Changing the password 2
a Press Menú (Menu), 3, 0, 1.
b Press a or b to choose Set Password.
Press OK.
c Enter a four-digit number for the old 
password.
Press OK.
d Enter a four-digit number for a new 
password.
Press OK.
e When the LCD displays Verify:, 
reenter the password.
Press OK.
f Press Detener/Salir (Stop/Exit).
Security features 
(MFC model only)
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