Brother Fax 4750e 5750e User Guide

18 - 4   OPTIONAL ACCESSORIES
ZleMFC-US-FAX-4750e/5750e-
Paper Cassette #2 (Option for FAX-4750e)
You can purchase the Paper Cassette #2 accessory (LT400) to use as a third 
paper source. Cassette #2 holds up to 250 sheets of 20 lb. (75 g/m2) paper.
Network (LAN) Board (Option for FAX-4750e)
When you add the optional Network (LAN) Board (NC-8100h), you can 
connect your machine into the network to use the Internet FAX, Network 
Scanner, Network Printer and Network Management operations.
(See NC-8100h...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   19 - 1
19
ZleMFC-US-FAX-4750e/5750e-
19Troubleshooting and 
Routine Maintenance
Troubleshooting
Error Messages
As with any sophisticated office product, errors may sometimes occur. If this 
happens, your machine often identifies the problem and displays an error 
message. The table below explains the most common error messages. 
You can correct most problems by yourself. If you need additional help, call the 
Brother fax-back system.
In USA Only:1-800-521-2846...

19 - 2   TROUBLESHOOTING AND ROUTINE MAINTENANCE
ZleMFC-US-FAX-4750e/5750e-
COOLING DOWNThe temperature of the drum unit or 
toner cartridge is too hot. The 
machine will pause its current print 
job and go into cooling down mode. 
During the cooling down mode, you 
will hear the cooling fan running 
while the display on the machine 
shows COOLING DOWN.You must wait and allow the 
machine to resume printing when it 
is ready.
COVER OPEN
PLS CLOSE COVERThe front cover was not completely 
closed.Close the...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   19 - 3
ZleMFC-US-FAX-4750e/5750e-
PLS OPEN COVERA page, piece of paper, or paper clip 
may be jammed inside the machine.Open the front cover. If you see any 
jammed paper or other item, gently 
pull it out, then close the scanner 
unit. If the error message remains, 
open and close the front cover 
again. If the machine cannot reset 
itself and return to the date and time 
prompt, it will display 
MACHINE ERROR XX. Please 
call Brother Customer Service and 
tell...

19 - 4   TROUBLESHOOTING AND ROUTINE MAINTENANCE
ZleMFC-US-FAX-4750e/5750e-
Document Jam
The originals did not feed properly, or were too long.
1Lift the control panel.
2Carefully pull the document toward 
the front of the machine.
3Close the control panel.
4Press Stop/Exit.
Paper Jam
Before you can clear a paper jam error, you must find out where the paper is 
stuck. See the following three types of paper jams.
WARNING
Do not use force to pull the jammed paper from the paper tray because you may 
damage...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   19 - 5
ZleMFC-US-FAX-4750e/5750e-
Paper is Jammed in the Paper Cassette
1Pull the paper cassette out of the 
machine.
2Remove any crinkled sheets.
3Adjust the guides to fit.
4Press down the paper to flatten it in the paper cassette.
5Reinstall the paper cassette.
Paper is Jammed near the Drum Unit
1Open the front cover.
2Remove the drum unit but do not force it if it cannot be removed easily. 
Instead, pull the edge of the jammed paper from the paper cassette....

19 - 6   TROUBLESHOOTING AND ROUTINE MAINTENANCE
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If You Are Having Difficulty with Your Machine
If you think there is a problem with your machine, make a copy first. If the copy 
looks good, the problem is probably not your machine. Check the table below 
and follow the troubleshooting tips.
DIFFICULTYSUGGESTIONS
Printing and Receiving Faxes
Condensed print and 
horizontal streaks; top 
and bottom of sentences 
are cut off.If your copy looks good, you probably had a bad...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   19 - 7
ZleMFC-US-FAX-4750e/5750e-
DIFFICULTYSUGGESTIONS
Phone Line or Connections
Dialing does not work. Check for a dial tone. Change TONE/PULSE 
setting (See 
Setting Tone/Pulse Dialing Mode, Page 
4-8). 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 pressing Hook—OR—by lifting the handset, 
and dialing the number. Wait to hear the fax 
receiving tones before...

19 - 8   TROUBLESHOOTING AND ROUTINE MAINTENANCE
ZleMFC-US-FAX-4750e/5750e-
DIFFICULTYSUGGESTIONS
Handling Incoming Calls
Double-ring in 
FAX/TEL mode.
The machine knows the incoming call is not a fax, so 
it is signaling you to answer the telephone call. Pick 
up the 
machine handset or answer from an extension 
phone and then press your 
machine’s Telephone 
Answer Code (default setting is #51).
I have difficulty 
transferring a fax call to 
the machine.If you answered at the machine, press Fax Start...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   19 - 9
ZleMFC-US-FAX-4750e/5750e-
DIFFICULTYSUGGESTIONS
General Printing Difficulties
The machine does not 
print.Check the following: 
 • The machine is plugged in. 
 • The toner cartridge and drum unit are installed 
properly. 
 • The interface cable is securely connected 
between the machine and the computer.
 • Check to see if LCD is showing an error message. 
(See pages 19-1 to 19-3)
The machine prints 
unexpectedly or it prints 
garbage.Reset the machine....