Brother MFC 8440 User Manual

IMPORTANT INFORMATION   11 - 8
Trademarks
The Brother logo is a registered trademark of Brother Industries, Ltd.
Brother is a registered trademark of Brother Industries, Ltd.
Multi-Function Link is a registered trademark of Brother International 
Corporation.
© Copyright 2004 Brother Industries, Ltd. All rights reserved.
Windows, Microsoft and Windows NT are registered trademarks of 
Microsoft in the U.S. and other countries.
Macintosh, QuickDraw, iMac and iBook are trademarks or registered 
trademarks...

12 - 1   TROUBLESHOOTING AND ROUTINE MAINTENANCE
12
 
Troubleshooting 
Error messages
As with any sophisticated office product, errors may occur. If this 
happens, your MFC identifies the problem and displays an error 
message. The most common error messages are shown below.
You can correct most problems by yourself. If you need additional 
help, call the Brother fax back system (USA only).
In USA only: 1-800-521-2846
Troubleshooting and routine 
maintenance
IMPORTANT
For technical help, you must call...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 2
Check Paper 
SizeWhen you see this error, the paper in the 
paper tray does not match the paper size you 
set in 
Menu
, 1,  3.
Load the appropriate size paper or 
change the default setting. 
(See  Setting the Mode Timer  on 
page 4-5.)
Check Scan 
Lock The scanner lock is locked.  Release the scanner lock lever, and 
then press Stop/Exit.
Comm. Error Poor phone line quality caused 
communication error.  Try the call again. If problem 
continues, call...

12 - 3   TROUBLESHOOTING AND ROUTINE MAINTENANCE
Out Of Memory You can’t store data in the memory. (Fax sending in process)
Press Stop and wait until the other 
operations in progress finish and 
then try again.
— OR —
Clear the data in the memory. 
(See  Out of Memory message  on 
page 10-5.)
(Copy operation in process)
Press  Stop and wait until the other 
operations in process finish and 
then try again.
— OR —
Clear the data in the memory. 
(See  Out of Memory message  on 
page 10-5.)
— OR —
Add an...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 4
Original jams
Based upon where the original is jammed, follow the appropriate set 
of instructions to remove it.
Original is jammed in the top of the ADF unit.
1Take out any paper from 
the ADF that is not 
jammed.
2Lift the ADF cover.
3Pull the jammed original 
out to the left.
4Close the ADF cover.
5Press Stop/Exit.
Paper JamThe paper is jammed in the MFC. See  Paper jams on page 12-6 or 
Paper is jammed in the duplex tray 
(For MFC-8640D, MFC-8840D and...

12 - 5   TROUBLESHOOTING AND ROUTINE MAINTENANCE
Original is jammed inside the ADF unit.
1Take out any paper from 
the ADF that is not 
jammed.
2Lift the document cover.
3Pull the jammed original 
out to the right.
4Close the document 
cover.
5Press Stop/Exit.
— OR —
1Take the ADF support out of the ADF unit.
2Pull the jammed original out to the right.
3Press Stop/Exit.
 

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 6
Paper jams
To clear paper jams, please follow the steps in this section.
WARNING
After you have just used the MFC, some parts inside the MFC are 
extremely hot. When you open the front cover or back output tray of 
the MFC, never touch the shaded parts shown in the following 
diagram.
Clear the jammed paper as follows. 
If the jammed paper is removed completely by using the information 
in the following steps, you can install the paper tray first, and...

12 - 7   TROUBLESHOOTING AND ROUTINE MAINTENANCE
1Pull the paper tray completely out of the MFC.
2Pull the jammed paper up and out of the MFC.
3Press the cover release button and then open the front cover.
4Pull out the drum unit assembly. Pull the jammed paper up and 
out of the MFC. If you cannot remove the drum unit assembly 
easily at this time, do not use extra force. Instead, pull the edge 
of the jammed paper from the paper tray.
If the jammed paper can not be pulled out easily, turn the jam...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 8
WARNING
To prevent damage to the MFC caused by static electricity, do not 
touch the electrodes shown in the following diagram.
5Open the back output tray. Pull the jammed paper out of the 
fuser unit. If the paper jam can be cleared, go to Step 7. 
If you have to pull the paper toward the back of the MFC, the 
fuser may get dirty with toner powder and it may scatter on the 
next printouts. Print a few copies of the test page until the 
scattering of...

12 - 9   TROUBLESHOOTING AND ROUTINE MAINTENANCE
WARNING
After you have just used the MFC, some internal parts of the MFC 
are extremely  HOT! Wait for the MFC to cool down before you touch 
the internal parts of the MFC.
6Open the jam clear cover (fuser cover). Pull the jammed paper 
out of the fuser unit.
7Close the jam clear cover. Close the back output tray.
HOT!
Back view
Jam Clear Cover
(Fuser Cover)