Brother MFC 9840CDW User Manual

							Troubleshooting and routine maintenance
169
C
Replacing a toner cartridgeC
Order Numbers:
Toner Cartridge Standard: 
TN-130 (BK, C, M, Y)
Toner Cartridge High Yield: 
TN-135 (BK, C, M, Y)
The High Yield toner cartridges can print 
approximately 5,000 pages (Black) and 
approximately 4,000 pages each (Cyan, 
Magenta and Yellow). The Standard toner 
cartridges can print approximately 2,500 
pages (Black) and approximately 1,500 
pages each (Cyan, Magenta and Yellow). 
Actual page count will vary depending on 
your average type of document (i.e., standard 
letter, detailed graphics).
Toner low messageC
 
Toner Low
Prepare New
The machine is supplied with the Standard 
TN-130 toner cartridge. When a toner 
cartridge is running low, the LCD shows 
Toner Low. 
Note
It is a good idea to keep new toner 
cartridges ready for use when you see the 
Toner Low warning.
 
Toner life end messageC
When the following message appears on the 
LCD, you need to replace the toner cartridge. 
The second line of the LCD indicates which 
colour you need to replace.
 
Toner Life End
Replace Black(K)
Discard the used toner cartridge according to 
local regulations, keeping it separate from 
domestic waste. You can also check our 
ecology website www.brothergreen.co.uk for 
recycling information.Be sure to seal up the 
toner cartridge tightly so that toner powder 
does not spill out of the cartridge. If you have 
questions, call your local waste disposal 
office.
Note
We recommend that you clean the 
machine and corona wires of the drum unit 
when you replace a toner cartridge. (See 
Cleaning the laser scanner 
windowson page 151 and Cleaning the 
corona wireson page 155.)
 
Replacing the toner cartridgesC
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.
 
 
 
						

							170
aTurn off the machine’s power switch. 
Press the front cover release button and 
then 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.
 
cHold the handle of the toner cartridge 
and pull it out of the drum unit. Repeat 
this for all the toner cartridges.
 
 
						

							Troubleshooting and routine maintenance
171
C
CAUTION 
We recommend that you place the toner 
cartridges on a clean, flat surface with a 
piece of disposable paper underneath it in 
case you accidentally spill or scatter toner.
  
DO NOT put a toner cartridges into a fire. It 
could explode, resulting in injuries.
  
Handle the toner cartridges carefully. If 
toner scatters on your hands or clothes, 
wipe or wash it off with cold water at once.
  
To avoid print quality problems, DO NOT 
touch the shaded parts shown in the 
illustrations.
 
 
 
 
CAUTION 
Brother machines are designed to work 
with toner of a particular specification and 
will work to a level of optimum performance 
when used with genuine Brother toner 
cartridges (TN-130/TN-135). Brother 
cannot guarantee this optimum 
performance if toner or toner cartridges of 
other specifications are used. Brother does 
not therefore recommend the use of 
cartridges other than genuine Brother 
cartridges with this machine, or the refilling 
of empty cartridges with toner from other 
sources. If damage is caused to the drum 
unit or other part of this machine as a result 
of the use of toner or toner cartridges other 
than genuine Brother products due to the 
incompatibility or lack of suitability of those 
products with this machine, any repairs 
required as a result may not be covered by 
the warranty.
  
Unpack the toner cartridge just before you 
put it in the machine. If a toner cartridge is 
left unpacked for a long time, the toner life 
will be shortened.
 
Note
• Be sure to seal up the toner cartridge 
tightly in a suitable bag so that toner 
powder does not spill out of the cartridge.
• Discard the used toner cartridge 
according to local regulations, keeping it 
separate from domestic waste. If you have 
questions, call your local waste disposal 
office.
 
 
						

							172
CAUTION 
DO NOT use flammable substances near 
the machine. DO NOT use any type of 
spray to clean the inside or outside of the 
machine. Doing this may cause a fire or 
electrical shock. Refer to Routine 
maintenanceon page 149 for how to clean 
the machine.
 
dClean the corona wires as follows.
1Push to release the latches of the 
white corona wire cover (1), and 
then open the cover.
 
2Clean the corona wire inside the 
drum unit by gently sliding the 
green tab from left to right and right 
to left several times.
CAUTION 
Be sure to return the tab to the home 
position (b) (1). If you do not, printed pages 
may have a vertical stripe.
 
 
3Close the corona wire cover. 
4Repeat step 1 through step 3 to 
clean each of the remaining three 
corona wires.
1
1
2
1
1
2
 
						

							Troubleshooting and routine maintenance
173
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
1
2
3
4
 
						

							174
hPush the drum unit in until it stops. 
iClose the front cover of the machine. 
Replacing the drum unitC
Order Number: DR-130CL
Change Parts Drum messageC
 
Change Parts
Drum
The machine uses a drum unit to create print 
images on paper. If the LCD shows 
Change Parts Drum, the drum unit is near 
the end of its life and it is time to buy a new 
one.
Even if the LCD shows Change Parts 
Drum, 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 Change Parts Drum 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 151.)
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
175
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. 
 
 
						

							176
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
177
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
 
						

							178
 
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