Brother MFC-8440 B - Manual (Page 175)

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 Cleaning the scanner on page 12-25.)
Handling Incoming Calls
MFC ‘Hears’ 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 Easy Receive on page 5-4.)
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. Brother’s 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 Cleaning the scanner on page 12-25 and Cleaning the drum unit
on page 12-27.)
DIFFICULTY SUGGESTIONS