Brother MFC 9440CN User Manual

							Troubleshooting and routine maintenance
161
C
eUnpack the new toner cartridge. Hold 
the cartridge with both hands and gently 
shake it five or six times to spread the 
toner evenly inside the cartridge.
 
fRemove the orange protective cover.  
gHolding the toner cartridges by their 
coloured handles, insert them one by 
one back into the drum unit as shown. 
Make sure that you match the toner 
cartridge colour to the same colour label 
on the drum unit, and make sure that 
you fold down the toner cartridge 
handle (A) once the toner cartridge is in 
place. Repeat this for all the toner 
cartridges.
 
1 C - Cyan
2 M - Magenta
3 Y - Yellow
4K - Black
A A
1
2
3
4
 
						

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hPush the drum unit in until it stops. 
iClose the front cover of the machine. 
Replacing the drum unitC
Order Number: DR-130CL
Drum end soon messageC
 
Drum End Soon
The machine uses a drum unit to create print 
images on paper. If the LCD shows 
Drum End Soon, the drum unit is near the 
end of its life and it is time to buy a new one.
Even if the LCD shows Drum End Soon, 
you may be able to continue printing without 
having to replace the drum unit for a while. 
However, if there is a noticeable deterioration 
in the output print quality (even before 
Drum End Soon appears), then the drum 
unit should be replaced. You should clean the 
machine when you replace the drum unit. 
(See Cleaning the laser scanner windowson 
page 140.)
CAUTION 
While removing the drum unit, handle it 
carefully because it may contain toner. If 
toner scatters on your hands or clothes, 
wipe or wash it off with cold water at once.
 
 
						

							Troubleshooting and routine maintenance
163
C
Note
The drum unit is a consumable item, and 
it is necessary to replace it periodically. 
There are many factors that determine the 
actual drum life, such as temperature, 
humidity, type of paper and how much 
toner you use for the number of pages per 
print job. The estimated drum life is 
approximately 17,000 pages. The actual 
number of pages your drum will print may 
be significantly less than these estimates. 
Because we have no control over the 
many factors that determine the actual 
drum life, we cannot guarantee a 
minimum number of pages that will be 
printed by your drum.
 
Replacing the drum unitC
CAUTION 
Wait to unpack a new drum unit until 
immediately before installing it. Put the old 
drum unit into the plastic bag.
 
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.
 
 
aTurn off the machine’s power switch. 
Press the front cover release button and 
then open the front cover. 
 
 
						

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bHold the green handle of the drum unit. 
Lift the drum unit up and then pull it out 
until it stops.
 
CAUTION 
We recommend that you place the drum 
unit and toner cartridges separately on a 
clean, flat surface with a piece of 
disposable paper underneath them in case 
you accidentally spill or scatter toner.
 
 
 
 
Handle the toner cartridge carefully. If toner 
scatters on your hands or clothes, wipe or 
wash it off with cold water at once.
 
 
						

							Troubleshooting and routine maintenance
165
C
cRelease the grey lock lever (1) that is on 
the left side of the machine. Lift the front 
of the drum unit and pull the drum unit 
completely out of the machine using the 
green handles on the drum unit.
 
Note
Discard the used drum unit according to 
local regulations, keeping it separate from 
domestic waste. Be sure to seal up the 
drum unit tightly so that toner powder does 
not spill out of the unit. If you have 
questions, call your local waste disposal 
office.
 
CAUTION 
To prevent damage to the machine from 
static electricity, DO NOT touch the 
electrodes shown in the illustration.
 
 
 
Make sure that you use the drum unit 
handles when carrying it.  DO NOT hold the 
sides of the drum unit.
 
 
1
 
						

							166
 
To avoid print quality problems, DO NOT 
touch the shaded parts shown in the 
illustrations.
 
 
 
 
dUsing their coloured handles to lift them 
out, remove all four toner cartridges 
from the drum unit.
 
eUnpack the new drum unit and remove 
the protective cover.
 
2
1
 
						

							Troubleshooting and routine maintenance
167
C
fHolding the toner cartridges by their 
coloured handles, insert them one by 
one back into the drum unit as shown. 
Make sure that you match the toner 
cartridge colour to the same colour label 
on the drum unit, and make sure that 
you fold down the toner cartridge 
handle (A) once the toner cartridge is in 
place. Repeat this for all the toner 
cartridges.
 
1 C - Cyan
2 M - Magenta
3 Y - Yellow
4K - Black
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).
 
A
1
2
3
4
1
1
 
						

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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. 
When you replace the drum unit with a 
new one, you need to reset the drum 
unit counter by completing the following 
steps:
iTurn on the machine’s power switch.
2
1
2
1
 
						

							Troubleshooting and routine maintenance
169
C
jPress Menu, 8, 4.
Only the parts counters that need to be 
reset appear in the menu.
 
Machine Info.
4.Reset Menu
kPress a or b to choose Drum.
Press OK.
lPress 1 to reset the drum unit counter.
mPress Stop/Exit.
Replacing the belt unitC
Order Number: BU-100CL
Change Belt Unit messageC
When the belt unit runs out, the following 
message appears on the LCD. When you see 
this message, you must replace the belt unit:
 
Change Belt Unit
CAUTION 
DO NOT touch the surface of the belt unit. 
If you touch it, it could degrade print quality.
  
Damage caused by improper handling of 
the belt unit may void your warranty.
 
Replacing the belt unitC
aTurn off the machine’s power switch. 
Press the front cover release button and 
then open the front cover.
 
 
						

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bHold the green handle of the drum unit. 
Lift the drum unit up and then pull it out 
until it stops.
 
cRelease the grey lock lever (1) that is on 
the left side of the machine. Lift the front 
of the drum unit and pull the drum unit 
completely out of the machine using the 
green handles on the drum unit.
 
1