Brother MFC-820CW - Manual (Page 127)

Troubleshooting and Routine Maintenance
111
Dial Tone
B
Setting the dial tone to Detection will shorten
the dial detect pause.
a
Press Menu.
b
Press a or b to choose
Initial Setup.
c
Press a or b to choose Dial Tone.
Press OK.
d
Press a or b to choose Detection or
No Detection.
Press OK.
e
Press Stop/Exit.
Phone line interference
B
If you are having problems sending or
receiving a fax due to possible interference
on the phone line, we recommend that you
adjust the Equalization for compatibility to
reduce the modem speed for fax operations.
a
Press Menu.
b
Press a or b to choose Fax.
c
Press a or b to choose
Miscellaneous.
Press OK.
d
Press a or b to choose
Compatibility.
Press OK.
e
Press a or b to choose Normal (or
Basic).
„ Basic reduces the modem speed to
9600 bps. Unless interference is a
recurring problem on your phone
line, you may prefer to use it only
when needed.
„ Normal sets the modem speed at
14400 bps. (factory setting)
Press OK.
f
Press Stop/Exit.
Note
When you change the compatibility to
Basic, the ECM feature is not available.
Your computer cannot find your
machine. ® users>
Firewall setting on you PC may be rejecting the necessary network connection.
For detail, see the instruction above.
® users>
Re-select your machine in the DeviceSelector application located in Macintosh
HD/Library/Printers/Brother/Utilities or from the model of ControlCenter2.
Network Difficulties (Continued)
Difficulty Suggestions