Brother MFC-4820C User Manual page 328

DIFFICULTY
Received colour fax prints only
in black and white.
Left and Right margins are cut
off.
Phone Line or Connections
The MFC does not answer
when called.
Sending Faxes
Poor sending quality.
Transmission Verification
Report says 'Result:NG' or
'Result:ERROR'.
Vertical black lines when
sending.
Handling Incoming Calls
MFC 'Hears' Voice as CNG
Tone.
Sending a Fax Call to the
MFC.
23 - 8 TROUBLESHOOTING AND ROUTINE MAINTENANCE
SUGGESTIONS
Replace the colour ink cartridges that are empty or nearly empty, and
then ask the other person to send the colour fax again. (See Replacing
the ink cartridges on page 23-20.) Check that Fax Storage is set to OFF.
(See Setting Fax Storage on page 8-1.)
Turn on Auto Reduction. (See Printing a reduced incoming fax (Auto
Reduction) on page 5-7.)
Make sure the MFC is in the correct receiving mode for your setup. (See
Basic receiving operations on page 5-1.) Check for a dial tone. If
possible, call your MFC to hear it answer. If there is still no answer,
check the telephone line cord connection. If there is no ringing when you
call your MFC, ask your telephone company to check the line.
Try changing your resolution to FINE or S.FINE . Make a copy to check
your MFC's scanner operation.
There is probably temporary noise or static on the line. Try sending the
fax again. If you send a PC FAX message and get 'Result:NG' or, on the
Transmission Verification Report, your MFC may be out of memory. To
gain extra memory, you can turn off Fax Storage (See Setting Fax
Storage on page 8-1), print fax messages in memory (See Printing a fax
from the memory on page 5-10) or cancel a Delayed Fax or Polling Job
(See Cancelling a scheduled job on page 6-12). If the problem
continues, ask the telephone company to check your phone line.
If the copy you made shows the same problem, your scanner is dirty.
(See Cleaning the scanner on page 23-19.)
If your MFC is set to Fax Detect 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 Fax
Detect to OFF. (See Fax Detect on page 5-6.)
If you answered at the MFC, press Fax Start and hang up immediately.
If you answered on an extension phone, press your Remote Activation
Code (default setting is ( 51). When your MFC answers, hang up.