Brother FAX4750 Service Manual page 403

Difficulty
Phone Line
Dialing does not work
or
Connections
Machine does not
answer when called
No dial tone on the
handset
connected
Sending
Poor transmitting
quality
Faxes
Transmission
report prints
"Results:NG"
When the receiving
party says the picture
is not clear
When the receiving
says vertical
streaks appear on the
faxes they receive
17 - 8 T R O U B L E S H O O T I N G A N D R O U T I N E M A I N T E N A N C E
Suggestions
Check for a dial tone. Change TONE/PULSE
setting. (See Tone/Pulse, page 4-1.) Check all
line cord connections, and make sure the curled
handset cord is not in the EXT jack. Check
power cord connection. Send a manual fax by
Hook
pressing —OR—by lifting the handset, and
dialing the number. Wait to hear fax receiving
tones before pressing
Make sure the machine is in the correct
receiving mode for your setup (either FAX,
FAX/TEL, TAD). Check for dial tone. If
possible, call your machine to hear it answer. If
there is still no answer, check the telephone line
cord connection. Connect a standard telephone
handset to the machine's telephone jack. If
there is no ringing when you call your machine,
call your Telephone Company to check the line.
Press Hook —OR—Lift the handset. If you hear
no dial tone, check telephone line cord
connections at the machine and wall jack.
Check that the handset
to the machine's handset jack. Test the wall
jack with another single line telephone. If no
dial tone on the wall outlet, call your
Telephone Company.
Try changing your resolution to FINE or
SUPERFINE. (See Resolution, page 6-8.)
Make a copy to verify the machine's scanner
operation.
There is probably temporary noise or static on
the phone line. Try sending the fax again. If the
problem continues, call the Telephone Company
to check your phone line.
Sometimes the resolution mode you chose when
you sent your fax may not have been
appropriate. Send the fax again, but try using
the FINE or SUPERFINE mode. Also, your
machine's scanner may be dirty, so try cleaning
it. (See page 17-20.)
Your machine's scanner may be dirty or theparty
receiving party's print head may be dirty.
Clean your scanner, (see page 17-20) and make a
copy to check if the receive problem was
caused by your machine.
Start
.
curled cord is