Brother MFC-640CW User Manual page 149

DIFFICULTY
Printing Received Faxes (Continued)
Left and Right margins are cut
off or a single page is printed
on two pages.
Phone Line or Connections
Dialling does not work.
(No dial tone)
Receiving Faxes
The machine cannot receive a
fax.
Sending Faxes
The machine cannot send a
fax.
The machine cannot send
multiple pages from the
scanner glass.
Transmission Verification
Report says 'Result:NG' or
'Result:ERROR'.
Poor sending quality.
Vertical black lines when
sending.
Handling Incoming Calls
The machine 'Hears' Voice as
CNG Tone.
TROUBLESHOOTING AND ROUTINE MAINTENANCE 13 - 11
SUGGESTIONS
Turn on Auto Reduction. (See Printing a reduced incoming fax (Auto
Reduction) on page 4-7.)
Check that the machine is plugged in and not in Power Save mode.
Check for a dial tone. If possible, call your machine to hear it answer. If
there is still no answer, check the telephone line cord connection and make
sure all telephone connections are secured. If there is no ringing when you
call your machine, ask your telephone company to check the line.
Change Tone/Pulse setting. (See Setting the Phone Line Type on page
2-3.)
Make sure the machine is in the correct receiving mode for your setup.
(See Basic receiving operations on page 4-1.)
If you frequently encounter interference on the phone line, try changing the
menu setting of Compatibility to Basic. (See Compatibility on page 13-14.)
If you connect your machine to PBX or ISDN, set the menu setting of
Phone Line Type to your phone type. (See Setting the Phone Line Type
on page 2-3.)
Make sure that the Fax
mode on page 3-1.)
Ask the other party to check that receiving machine has paper.
Print the Transmission Verification Report and check for an error.
(See Printing reports on page 8-3.)
Make sure that Real Time Transmission is set to Off. (See Real Time
Transmission on page 3-9.)
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' on the
Transmission Verification Report, your machine may be out of memory.
To gain extra memory, you can turn off Remote Fax Options (see Turning
off Remote Fax Options on page 6-4), print fax messages in memory (see
Printing a fax from the memory on page 4-8) or cancel a Delayed Fax or
Polling Job (see Cancelling a waiting job on page 3-10). If the problem
continues, ask the telephone company to check your phone line.
If you frequently get transmission error with possible interference on the
phone line, try to change the menu setting of Compatibility to Basic.
(See Compatibility on page 13-14.)
If you connect your machine to PBX or ISDN, set the menu setting of
Phone Line Type to your phone type. (See Setting the Phone Line Type
on page 2-3.)
Try changing your resolution to Fine or S.Fine. Make a copy to check
your machine's scanner operation.
If the copy you made shows the same problem, your scanner is dirty.
(See Cleaning the scanner on page 13-23.)
If your machine is set to Fax Detect ON, it is more sensitive to sounds.
Your machine 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 on page 4-6.)
key is illuminated. (See How to enter Fax