Brother MFC 9120CN User Manual

							
Troubleshooting and routine maintenance139
C
Wrinkle
 
„Change to the recommended type of paper.
„ Make sure that the back cover is closed correctly.
„ Make sure that two grey levers inside the back cover are in the up 
position.
„ Make sure that the media type settings in the printer driver and in the 
machine’s Paper Type menu matches the type of paper you are 
using. (See  Acceptable paper and other print media  on page 17 and 
Basic tab  in the Software Users Guide  on the CD-ROM.)
Offset image
 
„ Make sure that the media type settings in the printer driver and in the 
machines Paper Type menu matches the type of paper you are 
using. (See  Acceptable paper and other print media  on page 17 and 
Basic tab  in the Software Users Guide  on the CD-ROM.)
„ Make sure that two grey levers inside the back cover are in the up 
position.
„ Check the machine’s environment. Conditions such as dry and low 
temperatures may cause this print quality problem. (See  Choosing a 
location  on page 108.)
„ Identify the colour causing the problem and put in a new drum unit. 
(See  Replacing the drum units  on page 174.)
To identify the colour of the drum unit, visit us at 
http://solutions.brother.com/
 to view our FAQs and troubleshooting 
tips.
Poor fixing
 
„ Make sure that the media type settings in the printer driver and in the 
machines Paper Type menu matches the type of paper you are 
using. (See  Acceptable paper and other print media  on page 17 and 
Basic tab  in the Software Users Guide  on the CD-ROM.)
„ Make sure that two grey levers inside the back cover are in the up 
position.
„ Choose  Improve Toner Fixing  mode in the printer driver. (See  Other 
Print Options  (For Windows
® printer driver),  Advanced options  (For 
Windows
® BR-Script printer driver),  Print Settings (For Macintosh 
printer driver) or  Printer Features (For Macintosh BR-Script printer 
driver) in the  Software Users Guide  on the CD-ROM.) 
If this selection does not provide enough improvement, select 
Thicker paper  in Media Type  settings.
Examples of poor print 
qualityRecommendation
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
ABCDEFGHIJKLMNOPQR STUVWXYZ. 012 34567 89. ab cdefghijklmnop qrs tu vwxyz.
 
						

							
140
Curled or wavy
 
„Choose  Reduce Paper Curl  mode in the printer driver when you do 
not use our recommended paper. (See  Other Print Options (For 
Windows
® printer driver),  Advanced options  (For Windows® 
BR-Script printer driver),  Print Settings (For Macintosh printer driver) 
or  Printer Features  (For Macintosh BR-Script printer driver) in the 
Software Users Guide  on the CD-ROM.)
„ If you do not use the machine often, the paper may have been in the 
paper tray too long. Turn over the stack of paper in the paper tray. 
Also, fan the paper stack and then rotate the paper 180 ° in the paper 
tray.
„ Store the paper where it will not be exposed to avoid high 
temperatures and high humidity.
Uneven density or faded
 
„ Fully open the top cover and then close it again.
Envelope creases
 
Make sure that the envelope levers are pulled down when you are 
printing envelopes.
 
Examples of poor print 
qualityRecommendation
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFG
EFGHIJKLMN
 
						

							
Troubleshooting and routine maintenance141
C
Setting Dial Tone detectionC
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 
back to the default  No Detection setting.
a(for New Zealand) Press  Menu, 0, 4.
Press  Menu, 0, 5
bPress  a or  b to choose  Detection  or 
No Detection .
Press  OK.
cPress  Stop/Exit .
Telephone line interferenceC
If you are having difficulty sending or 
receiving a fax due to possible interference 
on the telephone line, we recommend that 
you adjust the Equalization for compatibility 
to reduce the modem speed for fax 
operations.
aPress Menu, 2, 0,  1.
bPress  a or  b to choose 
Basic(for VoIP) , Normal  or High .
„ 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 
regularly experience interference on 
your standard telephone line try this 
setting.
If you are using VoIP: VoIP service 
providers offer fax support using 
various standards. If you regularly 
experience fax transmission errors 
try this setting.
„ Normal  sets the modem speed at 
14400 bps.
„ High  sets the modem speed at 
33600 bps.
Press  OK.
cPress  Stop/Exit .
Note
When you change the Compatibility to 
Basic(for VoIP) , the ECM feature is 
only available for colour fax sending.
 
 
						

							
142
Error and maintenance messagesC
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 common error and maintenance messages are shown 
below.
You can clear most errors and perform routine maintenance messages by yourself. If you need 
more help, the Brother Solutions Center offers the latest FAQs and troubleshooting tips:
Visit us at http://solutions.brother.com/
Error MessageCauseAction
Access Error  
(MFC-9320CW only) The device is removed from the 
USB direct interface while the 
data is processing. Press 
Stop/Exit . Reinsert the device and try 
to print with Direct Print.
Belt End Soon The belt unit is near the end of its 
life. Buy a new belt unit before you get a 
Replace Belt
 message.
Calibrate Calibration failed. Press  Mono Start or Colour Start  and try it 
again.
„ Turn off the machine. Wait a few 
seconds, then turn it on again.
„ Identify the colour causing the problem 
and put in a new drum unit. (See 
Replacing the drum units  on page 174.)
To identify the colour of the drum unit, 
visit us at http://solutions.brother.com/
 to 
view our FAQs and troubleshooting tips.
„ Put in a new belt unit. (See  Replacing the 
belt unit  on page 177.)
„ Put in a waste toner box. (See  Replacing 
the waste toner box  on page 181.)
„ If the problem continues, call your dealer 
or Brother Customer Service.
Cartridge Error 
Put the Black (K) 
Toner Cartridge 
back in.
1
1The colour of the 
problem toner 
cartridge is shown in 
the message.
The toner cartridge is not installed 
correctly. Take out the drum unit and toner cartridge 
assembly for the toner colour that is 
indicated on the LCD. Remove the toner 
cartridge and then re-install it in the drum. 
Put the drum unit and toner cartridge 
assembly back into the machine again.
 
						

							
Troubleshooting and routine maintenance143
C
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 then 
leave the machine turned on but do not use 
it for several minutes.
If the fan is not spinning do the following:
Disconnect the machine from the power for 
several minutes, then reconnect it. (The 
machine can be turned off for up to 4 days 
without losing faxes stored in the memory. 
See 
Transferring your faxes or Fax Journal 
report  on page 148.)
Comm.Error Poor telephone line quality 
caused a communication error. Try sending the fax again or try connecting 
the machine to another telephone line. If the 
problem continues, call the telephone 
company and ask them to check your 
telephone line.
Connection Fail You tried to poll a fax machine 
that is not in Polled Waiting mode. Check the other fax machine’s polling setup.
Cover is Open The ADF cover is not closed 
completely. Close the ADF cover of the machine, then 
press 
Stop/Exit .
The top cover is not closed 
completely. Close the top cover of the machine.
Cover is Open The fuser cover is not closed 
completely or paper was jammed 
in the back of the machine when 
you turned on the power. „
Close the fuser cover of the machine.
„ Make sure paper is not jammed inside 
the back of the machine, and then close 
the fuser cover and press  Mono Start or 
Colour Start .
DIMM Error The DIMM is not installed 
correctly. Or the DIMM is broken. Turn off the machine. Re-install the DIMM 
correctly. Wait a few seconds, and then turn 
it on again. If this error message appears 
again, replace the DIMM with a new one. 
(See 
Installing extra memory  on page 123.)
Disconnected The other person or other 
person’s fax machine stopped the 
call. Try to send or receive again.
Document Jam The document was not inserted 
or fed correctly, or the document 
scanned from the ADF was too 
long. See 
Document jams  on page 149 or  Using 
the automatic document feeder (ADF)  
on page 22.
Drum Error The corona wire on the drum unit 
needs to be cleaned. Clean the corona wire on the drum unit. (See 
Cleaning the corona wires
 on page 158.)
It is time to replace the drum 
units. Replace the drum unit with a new one for the 
colour that is indicated on the LCD. (See 
Replacing the drum units
 on page 174.)
Error MessageCauseAction
 
						

							
144
Drums End SoonThe drum units are near the end 
of their life. Buy new drum units before you get a 
Replace Drums
 message.
Drum End Soon(X)
1The drum unit for the colour 
indicated on the LCD is near the 
end of its life. Buy new drum unit for the colour indicated on 
the LCD before you get a 
Replace Drum(X)
1 message.
DR mode in Use
(except New Zealand) The machine is set to Distinctive 
Ring mode. You can not change 
the Receive Mode from Manual to 
another mode. Set Distinctive Ring to off.
For Austlaria, see 
Telstra
® FaxStream® 
Duet
® (Distinctive Ringing)  on page 52.
For Other countries, see  Distinctive Ringing 
(For Singapore and Hong Kong)  on page 56.
Faxability On
(For New Zealand) The machine is set to Faxability 
mode. You can not change the 
Recieve Mode from Manual to 
another mode. Set Faxability to off.
See 
FaxAbility  on page 54.
Fuser Error The temperature of fuser unit 
does not rise at a specified 
temperature within specified time. Turn the power switch off, wait a few 
seconds, and then turn it on again. Leave the 
machine for 15 minutes with the power on. 
The machine can be turned off for up to 
60 hours without losing faxes stored in the 
memory. (See 
Transferring your faxes or Fax 
Journal report  on page 148.)
The fuser unit is too hot.
Init Unable XX
(XX=Error Code) The machine has a mechanical 
problem.
„
Disconnect the machine from the power 
for several minutes, then reconnect it. 
(The machine can be turned off for up to 
60 hours without losing faxes stored in 
the memory. See  Transferring your faxes 
or Fax Journal report  on page 148.)
„ If the problem continues, call Brother 
Customer Service.
Jam Inside The paper is jammed inside the 
machine. (See 
Paper jams  on page 150.)
Jam Rear The paper is jammed in the back 
of the machine. (See 
Paper jams  on page 150.)
Jam Tray The paper is jammed in the paper 
tray of the machine. (See 
Paper jams  on page 150.)
No Belt Unit The belt unit is not installed 
correctly. Re-install the belt unit. (See 
Replacing the 
belt unit  on page 177.)
Error MessageCauseAction
 
						

							
Troubleshooting and routine maintenance145
C
No PaperThe machine is out of paper or 
paper is not correctly loaded in 
the paper tray. Do one of the following:
„ Refill the paper in the paper tray and 
press  Mono Start  or Colour Start  or put 
the paper in the manual feed slot.
„ Remove the paper and load it again. 
Then press  Mono Start or Colour Start .
„ If the problem is not solved, the paper 
pick-up roller may be stained. Clean the 
paper pickup roller. (See  Cleaning the 
paper pick-up rollers  on page 164.)
No Response/Busy The number you dialled does not 
answer or is busy. Verify the number and try again.
No Toner The toner cartridge or the drum 
unit and toner cartridge assembly 
is not installed correctly. Re-install the toner cartridge or the drum unit 
that is indicated on the LCD.
No Waste Toner The waste toner box is not 
installed correctly. Re-install the waste toner box. (See 
Replacing the waste toner box
 on page 181.)
Out of Memory The machine’s memory is full. Fax sending or copy operation in 
progress
Do one of the following:
„ Press  Mono Start  or Colour Start  to 
send or copy the scanned pages.
„ Press  Stop/Exit  and wait until the other 
operations in progress finish, and then try 
again.
„ Clear the data from the memory. (See 
Out of memory message  on page 45 or 
page 92.)
Print operation in process
Do one of the following:
„ Reduce print resolution. (See  Advanced 
tab  in the  Software User’s Guide  on the 
CD
-ROM.)
„ Clear the faxes from the memory. (See 
Out of memory message  on page 92.)
Error MessageCauseAction
 
						

							
146
Print Unable XX
(XX=Error Code)The machine has a mechanical 
problem.
Do one of the following:
„ Disconnect the machine from the power 
for several minutes, then reconnect it. 
(The machine can be turned off for up to 
60 hours without losing faxes stored in 
the memory. See  Transferring your faxes 
or Fax Journal report  on page 148.)
„ If the problem continues, call your 
Brother dealer.
Print Unable 1A One of the issues that can cause 
this error is that condensation 
may form inside the machine after 
a room temperature change. Turn the power switch off and fully open the 
top cover. Leave the machine off and open 
for 30 minutes to remove any condensation 
from inside the machine, then close the top 
cover and turn the machine on again. If this 
does not clear the error, call your dealer or a 
Brother Customer Service.
Protected Device
(MFC-9320CW only) The protect switch of the USB 
Flash memory drive is on.
Turn off the protect switch of the USB Flash 
memory drive.
Registration Registration failed. Press  Mono Start or Colour Start  and try 
again.
Do one of the following:
„ Turn off the machine’s power switch. 
Wait a few seconds, then turn it on again.
„ Try Manual Registration,  Menu, 4, 7. 
(See  Manual Registration  on page 165.)
„ Put in a new belt unit. (See  Replacing the 
belt unit  on page 177.)
„ If the problem continues, call your 
Brother dealer.
Rename the File
(MFC-9320CW only) There is already a file on the USB 
Flash memory drive with the 
same name as the file you are 
trying to save. Change the file name of the file on the USB 
Flash memory drive or the file you are trying 
to save.
Replace Belt It is time to replace the belt unit. Replace the belt unit. (See  Replacing the 
belt unit  on page 177.)
Replace Drums It is time to replace the drum 
units. Replace the drum units.
(See 
Replacing the drum units  on page 174.)
The drum unit counter was not 
reset when a new drum was 
installed. Reset the drum unit counter.
(See 
Resetting the drum counter  
on page 177.)
Replace Drum(X)
1It is time to replace the drum unit 
for the indicated colour. Replace the drum unit for the colour 
indicated on the LCD.
(See 
Replacing the drum units  on page 174.)
Error MessageCauseAction
 
						

							
Troubleshooting and routine maintenance147
C
1(X) shows the toner cartridge or drum unit colour that is near the end of its life. (K)=Black, (Y)=Yellow, (M)=Magenta, 
(C)=Cyan.
Replace FuserIt is time to replace the fuser unit. Call your Brother dealer to replace the fuser 
unit.
Replace PF Kit It is time to replace the paper 
feeding kit. Call your Brother dealer to replace the 
PF Kit.
Replace Toner The toner cartridge is at the end 
of its life. Replace the toner cartridge for the colour 
indicated on the LCD. (See 
Replacing a 
Toner cartridge  on page 168.)
Replace WT Box It is time to replace the waste 
toner box. Replace the waste toner box. (See 
Replacing the waste toner box
 on page 181.)
Scan Unable XX
(XX=Error Code) The machine has a mechanical 
problem.
„
Disconnect the machine from the power 
for several minutes, then reconnect it. 
(The machine can be turned off for up to 
60 hours without losing faxes stored in 
the memory. See  Transferring your faxes 
or Fax Journal report  on page 148.)
„ If the problem continues, call Brother 
Customer Service.
Short paper The paper size detected is 
shorter than the paper size 
defined in the print job and the 
paper size being used requires 
the back cover to be open. Open the back cover (back output tray) and 
remove any printed pages. Leave the back 
cover open and press 
Mono Start or 
Colour Start .
Size mismatch The paper in the tray is not the 
correct size. Load the correct size of paper in the tray and 
set the 
“Paper Size” (
Menu , 1, 2, 2  (See 
Paper Size  on page 24)).
Small paper The paper size defined in the 
printer driver requires the back 
cover to be open. Open the back cover (back output tray) and 
press 
Mono Start  or Colour Start . (See 
Printing on thick paper, labels, envelopes or 
small paper  on page 13)
Toner Low The toner cartridge is near the 
end of its life. Buy a new toner cartridge for the colour that 
is indicated on the LCD before you get a 
Replace Toner message.
Too Many Files
(MFC-9320CW only) There are too many files stored 
on the USB Flash memory drive.
Reduce the number of files stored on the 
USB Flash memory drive.
Unusable Device
(MFC-9320CW only) An incompatible or broken device 
has been connected to the USB 
direct interface. Remove the USB Flash memory drive from 
the USB direct interface.
WT Box End Soon The waste toner box is almost full. Buy a new waste toner box before you get a 
Replace WT Box message.
Error MessageCauseAction
 
						

							
148
Transferring your faxes or Fax 
Journal reportC
If the LCD shows:„ Init Unable XX
„ Print Unable XX
„ Scan Unable XX
We recommend transferring your faxes to 
another fax machine or to your PC. (See 
Transferring faxes to another fax machine  
on page 148 or  Transferring faxes to your PC  
on page 148.)
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 machine  on page 148.)
Note
If there is an error message on the 
machine’s LCD, after the faxes have been 
transferred, disconnect the machine from 
the power source for several minutes, and 
then reconnect it.
 
Transferring faxes to another fax 
machine
C
If you have not set up your Station ID, you 
cannot enter fax transfer mode. (See  Enter 
personal information (station ID)  in the Quick 
Setup Guide .)
aPress Menu, 9, 0, 1 .
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  Mono Start  or Colour Start .
Transferring faxes to your PCC
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 CD-ROM.)
bMake sure that you have set 
PC Fax Receive  on the machine. 
(See  PC Fax Receive  on page 73.)
If faxes are in the machine’s memory 
when you set up PC Fax Receive, the 
LCD will ask if you want to transfer the 
faxes to your PC.
cDo one of the following:
„ To transfer all faxes to your PC, 
press  1. You will be asked if you want 
a backup print.
„ To exit and leave the faxes in the 
memory, press  2.
dPress  Stop/Exit .
Transferring Fax Journal report to 
another fax machine
C
If you have not set up your Station ID, you 
cannot enter fax transfer mode. (See  Enter 
personal information (station ID)  in the Quick 
Setup Guide .)
aPress Menu, 9, 0, 2.
bEnter the fax number to which the Fax 
Journal report will be forwarded.
cPress  Start.