Brother Mfc 7840wr User Manual

Troubleshooting and routine maintenance101
B
Setting dial tone detectionB
When you send a fax automatically, by 
default your machine will wait for a fixed 
amount of time before it starts to dial the 
number. By changing the Dial Tone setting to 
Detection  you can make your machine dial 
as soon as it detects a dial tone. This setting 
can save a small amount of time when 
sending a fax to many different numbers. If 
you change the setting and start having 
problems with dialling you should change...

102
Telephone line interferenceB
If you are having difficulty sending or 
receiving a fax due to possible interference 
on the telephone line, we recommend that 
you adjust the Equaliz ation for compatibility 
to reduce the modem speed for fax 
operations.
aPress  Menu, 2,  0, 1 .
bPress  a or  b to choose 
Basic(for VoIP)  or Normal  or 
High (MFC-7840W).
„ Basic(for VoIP)  cuts the 
modem speed to 9600 bps. and 
turns the error correction mode 
(ECM) off.
For a standard telephone line: If you...

Troubleshooting and routine maintenance103
B
Error and maintenance messagesB
As with any sophisticated office product, errors may occur and consumable items may need to be 
replaced. If this happens, your machine identifies the error or required routine maintenance and 
shows the appropriate message. The most commo n error and maintenance messages are shown 
below.
You can clear most errors and routine maintenanc e messages by yourself. If you need more help, 
the Brother Solutions Center offers t he...

104
Cooling Down
Wait for a whileThe 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 LCD shows 
Cooling Down
, and 
Wait for a while .Make sure that you can hear the fan in the 
machine spinning and that the exhaust outlet 
is not blocked by something.
If the fan is spinning, remove any obstacles 
that surround the exhaust outlet, and...

Troubleshooting and routine maintenance105
B
Fuser ErrorThe temperature of fuser unit 
does not rise at a specified 
temperature within specified time. Do one of the following:
„ (MFC-7320 and MFC-7440N only)
Received fax messages still in memory 
will be lost when the machine is turned 
off. See  Transferring your faxes or Fax 
Journal report  on page 107 before 
disconnecting the machine so you will 
not lose any important messages.
Then, turn the power switch off, wait a 
few seconds, and then turn it...

106
No Response/BusyThe number you dialled does not 
answer or is busy. Verify the number and try again.
Not Registered You tried to access a One Touch 
or Speed Dial number that is not 
programmed. Set up the One Touch or Speed Dial 
number.
(See 
Storing one touch dial numbers  
on page 52 and  Storing speed dial numbers  
on page 53.)
Out of Memory The machine’s memory is full. Fax sending or copy operation in 
progress
Do one of the following:
„ Press  Start to send or copy the scanned 
pages.
„...

Troubleshooting and routine maintenance107
B
Transferring your
 faxes or Fax 
Journal reportB
If the LCD shows:
„ Init Unable XX
„ Print Unable XX
„ Scan Unable XX
We recommend transfer ring your faxes to 
another fax machine or to your PC. (See 
Transferring faxes to another fax machine  
on page 107 or  Transferring faxes to your PC  
on page 108.)
You can also transfer the Fax Journal report 
to see if there are any faxes you need to 
transfer. (See  Transferring Fax Journal report 
to another fax...

108
bDo one of the following:„ If the LCD shows  No Data, there 
are no faxes left  in the machine’s 
memory.
Press  Stop/Exit .
„ Enter the fax number to which faxes 
will be forwarded.
cPress  Start.
Transferring faxes to your PCB
You can transfer the  faxes from your 
machine’s memory to your PC.
aMake sure that you have installed 
MFL-Pro Suite  on your PC, and then 
turn on  PC-Fax Receiving  on the PC. 
(For details about PC Fax Receive, see 
PC-FAX receiving  in the Software 
User’s Guide on the...

Troubleshooting and routine maintenance109
B
Document jamsB
If the document is jammed, follow the steps 
below.
Note
After removing a jammed document, 
check that no paper scraps are left in the 
machine that could cause another jam.
 
Document is jammed in the top of the 
ADF unit
B
aTake out any paper from the ADF that is 
not jammed.
bOpen the ADF cover.
cPull the jammed document out to the 
left.
 
dClose the ADF cover.
ePress Stop/Exit .
Document is jammed under the 
document cover
B
aTake out any...

110
Paper jamsB
To clear paper jams, please follow the steps 
in this section.
Note
• Please confirm that you have installed both a toner cartridge and a drum unit in 
the machine. If you have not installed a 
drum unit or have installed the drum unit 
incorrectly, then this may cause a paper 
jam in your Brother machine.
• If the error message remains, open and  close the front cover and fuser cover firmly 
to reset the machine.
 
WARNING 
HOT SURFACE
After you have just used the machine, some 
internal...