Brother MFC 9440CN User Manual

							Troubleshooting and routine maintenance
131
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Paper is jammed in Paper Tray 1 or 
Tray 2
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If the LCD shows Jam Tray 1 or 
Jam Tray 2, follow these steps.
 
Jam Tray 1
 
Jam Tray 2
aPull the paper tray completely out of the 
machine.
 
bUse both hands to slowly pull out the 
jammed paper.
 
cMake sure the paper is below the 
maximum paper mark. While pressing 
the green paper-guides release lever, 
slide the paper guides to fit the paper 
size. Make sure that the guides are 
firmly in the slots.
dPut the paper tray firmly back in the 
machine.
Paper is jammed inside the machineC
If the LCD shows Jam Inside, follow these 
steps:
 
Jam Inside
aPull the paper tray completely out of the 
machine.
 
bUse both hands to slowly pull out the 
jammed paper.
 
 
						

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cPress the front cover release button and 
then open the front cover. 
 
dHold the green handle of the drum unit. 
Lift the drum unit up and then pull it out 
until it stops.
 
 
						

							Troubleshooting and routine maintenance
133
C
eRelease the grey lock lever (1) that is on 
the left side of the machine. Lift the front 
of the drum unit up and pull the drum 
unit completely out of the machine using 
the green handles on the drum unit.
 
CAUTION 
Make sure that you use the drum unit 
handles when carrying it. DO NOT hold the 
sides of the drum unit.
 
 
 
We recommend that you put the drum unit 
on a flat surface protected by a piece of 
disposable paper or cloth in case of toner 
scatter or spillage.
  
To prevent damage to the machine from 
static electricity, DO NOT touch the 
electrodes shown in the illustration.
 
 
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fThe jammed paper may be pulled out 
with the toner cartridge and drum unit 
assembly, or this may release the paper 
so you can pull it out of the paper tray 
opening.
 
gPut the drum unit back in the machine as 
follows.
1Make sure that the grey lock 
lever (1) is in the up position and 
put the drum unit in the machine. 
Push down the grey lock lever (1).
 
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							Troubleshooting and routine maintenance
135
C
Note
When you put the drum unit in the 
machine, match the green guides (1) of 
the drum unit handle to the green 
arrows (2) on both sides of the machine.
 
 
2Push the drum unit in until it stops. 
hClose the front cover of the machine. 
iPut the paper tray firmly back in the 
machine.
2
1
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Paper is jammed at the back of the 
machine
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If the LCD shows Jam Rear, follow these 
steps:
 
Jam Rear
aPress the cover release lever to open 
the front cover.
 
bHold the green handle of the drum unit. 
Lift the drum unit up and then pull it out 
until it stops.
 
cOpen the back cover.  
 
						

							Troubleshooting and routine maintenance
137
C
dPull down the two green levers, one on 
the left-hand-side and one on the 
right-hand-side, as shown in the 
illustration below, and then fold down 
the fuser cover (1). 
 
HOT SURFACE 
After you have just used the machine, some 
internal parts of the machine will be 
extremely hot. When you open the front or 
back cover of the machine, DO NOT touch 
the shaded parts shown in the illustration.
 
 
eUsing both hands, gently pull the 
jammed paper out of the fuser unit.
 
fClose the fuser cover (1) and lift the two 
green levers at the left and right hand 
sides.
 
gClose the back cover. 
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hPut the drum unit and toner cartridge 
assembly back in the machine.
 
iClose the front cover of the machine. 
Routine maintenanceC
CAUTION 
The drum unit contains toner, so handle it 
carefully. If toner scatters on your hands or 
clothes, wipe or wash it off with cold water 
at once.
 
Cleaning the outside of the 
machineC
CAUTION 
Use neutral detergents. Cleaning with 
volatile liquids such as thinner or benzine 
will damage the outside surface of the 
machine.
  
DO NOT use cleaning materials that 
contain ammonia.
  
DO NOT use isopropyl alcohol to remove 
dirt from the control panel. It may crack the 
panel.
  
DO NOT use flammable substances or any 
type of spray to clean the inside or outside 
of the machine. Doing this may cause a fire 
or electrical shock.
 
 
						

							Troubleshooting and routine maintenance
139
C
Clean the outside of the machine as 
follows:
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aTurn off the machine’s power switch. 
Unplug the telephone line cord first, and 
then unplug the power cord from the 
electrical socket.
bPull the paper tray completely out of the 
machine.
 
cWipe the outside of the machine with a 
dry, lint-free cloth to remove dust.
 
dRemove anything that is stuck inside the 
paper tray.
eWipe the inside of the paper tray with a 
dry, lint-free cloth to remove dust.
 
fRe-load the paper and put the paper tray 
firmly back in the machine.
gPlug the machine’s power cord back into 
the AC electrical socket first, and 
reconnect all cables and telephone line 
cord. Turn on the machine’s power 
switch.
Cleaning the scannerC
aTurn off the machine’s power switch. 
Disconnect all cables, and unplug the 
telephone line cord first, and then 
unplug the power cord from the 
electrical socket.
bLift the document cover (1).
Clean the white plastic surface (2) and 
scanner glass (3) underneath it with a 
soft lint-free cloth moistened with a non-
flammable glass cleaner.
 
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3
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cIn the ADF unit, clean the white bar (1) 
and the scanner glass strip (2) 
underneath it with a soft lint-free cloth 
moistened with a non-flammable glass 
cleaner.
 
dPlug the machine’s power cord back into 
the AC electrical socket first, and 
reconnect all cables and telephone line 
cord. Turn on the machine’s power 
switch.
Note
In addition to cleaning the scanner glass 
and glass strip with a non-flammable glass 
cleaner, run your finger tip over the glass 
strip to see if you can feel anything on it. If 
you feel dirt or debris, clean the glass strip 
again concentrating on that area. 
You may need to repeat the cleaning 
process three or four times. To test, make 
a copy after each cleaning.
 
Cleaning the laser scanner 
windowsC
CAUTION 
DO NOT use isopropyl alcohol to clean the 
laser scanner windows.
  
DO NOT touch the laser scanner windows 
with your fingers.
 
aTurn off the machine’s power switch. 
Disconnect all cables, and unplug the 
telephone line cord first, and then 
unplug the power cord from the 
electrical socket.
bPress the front cover release button and 
then open the front cover.
 
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