

TROUBLESHOOTING AND ROUTINE MAINTENANCE
12 - 14
Vertical black lines when 
sending.
If the copy you made shows the same problem, your scanner is dirty. 
(See 
Handling Incoming Calls
MFC āHearsā Voice as CNG 
Tone.
If your MFC is set to Easy Receive ON, it is more sensitive to sounds. 
Your MFC may mistakenly interpret certain voices or music on the line 
as a calling fax machine and respond with fax receiving tones. 
Deactivate the fax by pressing 
Stop/Exit
. Try avoiding this problem by
turning Easy Receive to OFF. (See
Sending a Fax Call to the 
MFC.
If you answered at the MFC, press
Start
and hang up immediately. If
you answered on an external or extension phone, press your Fax 
Receive Code (default setting is (
51). When your MFC answers,
hang up.
Custom features on a single 
line.
If you have Call Waiting, Call Waiting/Caller ID, RingMaster, Voice Mail, 
an answering machine, an alarm system or other custom feature on a 
single phone line with your MFC, it may create a problem sending or 
receiving fax data.
For Example:
Your Brother MFC handles the Caller ID subscriber
services. However, if you subscribe to Call Waiting or some other 
custom service and its signal comes through the line while your MFC is 
sending or receiving a fax, the signal can temporarily interrupt or disrupt 
the fax data. Brotherās ECM feature should help overcome this problem. 
This condition is related to the telephone system industry and is 
common to all devices that send and receive information on a single, 
shared line with custom features. If avoiding a slight interruption is 
crucial to your business, a separate line with no custom features is 
recommended.
Menu Setting Difficulties
The MFC beeps when you try 
to access the Setup Receive 
and Setup Send menus.
Make sure that MFC is in Fax mode. If the Fax
key is not
illuminated, press it to turn on Fax mode. Setup Receive setting 
(
Menu
,
2
,
1
) and Setup Send setting (
Menu
,
2
,
2
) are available only
when the MFC is in Fax mode.
Copy Quality Difficulties
Vertical streaks appear in 
copies.
Sometimes you may see vertical streaks on your copies. Either the 
scanner or the primary corona wire for printing is dirty. Clean them both. 
(See 
DIFFICULTY
SUGGESTIONS