Brother DCP 9040CN User Manual

							Troubleshooting and routine maintenance
99
C
The machine will stop printing when the following maintenance messages appear on the LCD.
1The toner cartridge color that is used up is shown in the message.
2Approx. yields based on 5% page coverage (Letter). The actual number of printed pages will vary depending on the 
print jobs and paper you use.
3When printing on Letter size paper at 5% print coverage for CMYK each. The actual number of printed pages will vary 
depending on the print jobs and paper you use.
LCD messagesConsumable item 
to replaceApproximate lifeHow to replaceOrder No.
Toner Life End
Replace Black(K)
Toner Cartridge.1
Toner cartridges 
standard2,500 pages (Black)2
1,500 pages (Cyan, 
Magenta, Yellow)2
See Replacing a 
toner cartridge 
on page 101.TN-110BK
TN-110C
TN-110M
TN-110Y
Toner cartridges 
high yield5,000 pages (Black)
2
4,000 pages (Cyan, 
Magenta, Yellow)2
TN-115BK
TN-115C
TN-115M
TN-115Y
Waste Toner FullWaste toner box
20,000 pages
3See Waste Toner Box 
Full message 
on page 117.WT-100CL
 
						

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The following are maintenance messages that appear alternately with the normal message on the 
upper row of the LCD when the machine is in the Ready mode. These messages advise you that 
you will need to replace each of the consumable items as soon as possible, since the consumable 
item’s end of life has been reached. The machine will continue printing when any of these 
messages appear on the LCD.
1Drum yield is approximate, and may vary by type of use.
2When printing on Letter size paper.
3When printing on Letter or A4 size paper. The actual number of printed pages will vary depending on the print jobs 
and paper you use.
Note
• Discard used consumable items according to local regulations, keeping it separate from 
domestic waste. If you have questions, call your local waste disposal office. Be sure to reseal 
the consumable items tightly so that the material inside does not spill.
• We recommend placing used consumable items on a piece of paper to prevent accidentally 
spilling or scattering the material inside.
• If you use paper that is not a direct equivalent for the recommended paper, the life of 
consumable items and machine parts may be reduced.
• The projected life for toner cartridges and a waste toner box is based on an average 5% 
coverage of the printable area using any color toner cartridge. Frequency of replacement will 
vary depending on the complexity of printed pages, percentage of coverage and type of media 
used.
 
LCD messagesConsumable item to 
replaceApproximate lifeHow to replaceOrder No.
Drum End SoonDrum unit
17,000 pages
1See Replacing the drum 
unit on page 106.DR-110CL
Change Belt UnitBelt unit
50,000 pages
2See Replacing the belt 
unit on page 112.BU-100CL
Fuser Unit EndFuser unit
80,000 pages
3Call Brother Customer 
Service to replace the 
fuser unit.—
Laser Unit EndLaser unit
100,000 pages
3Call Brother Customer 
Service to replace the 
laser unit.—
Change PF Kit 1Paper feeding kit 1
(Paper pick-up roller 
and Separator pad for 
Tray 1)100,000 pages
3Call Brother Customer 
Service to replace the 
paper feeding kit 1.—
Change PF Kit MPPaper feeding kit MP
(Paper pick-up roller 
and Separator pad for 
MP tray)50,000 pages
3Call Brother Customer 
Service to replace the 
paper feeding kit MP.—
 
						

							Troubleshooting and routine maintenance
101
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Replacing a toner cartridgeC
Order Numbers: 
Toner Cartridge Standard: 
TN-110 (BK, C, M, Y)
Toner Cartridge High Yield: 
TN-115 (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-110 toner cartridge that must be replaced 
after approximately 2,500 pages (Black) and 
1,500 pages each (Cyan, Magenta and 
Yellow). When a toner cartridge is running 
low, the LCD shows Toner Low. (For details 
about the specific order number for each 
toner cartridge color by page yield, see 
Ordering accessories and supplies 
on page ii.)
Note
It is a good idea to keep a new toner 
cartridge 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 
color 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. 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 windows 
on page 83 and Cleaning the corona 
wires on page 87.)
 
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.
 
 
 
						

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aPress 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
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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 cartridge 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 strongly recommends that you do 
not refill the toner cartridges provided with 
your machine. We also strongly 
recommend that you continue to use only 
Genuine Brother Brand replacement toner 
cartridges. Use or attempted use of 
potentially incompatible toner and/or 
cartridges in the Brother machine may 
cause damage to the machine and/or may 
result in unsatisfactory print quality. Our 
warranty coverage does not apply to any 
problem that is caused by the use of 
unauthorized third party toner and/or 
cartridges. To protect your investment and 
obtain premium performance from the 
Brother machine, we strongly recommend 
the use of Genuine Brother Supplies.
  
Wait to unpack the toner cartridge until 
immediately 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.
 
 
						

							104
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 
maintenance on page 81 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.
eUnpack the new toner cartridge. Hold 
the cartridge level with both hands and 
gently shake it from side to side five or 
six times to spread the toner evenly 
inside the cartridge.
 
1
1
2
1
1
2
 
						

							Troubleshooting and routine maintenance
105
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fRemove the orange protective cover.
 
gHold the handle of the toner cartridge 
and slide the toner cartridge into the 
drum unit. Make sure that you match the 
toner cartridge color to the same color 
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
hPush the drum unit in until it stops. 
iClose the front cover of the machine. 
A
A
1
2
3
4
 
						

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Replacing the drum unitC
Order Number: DR-110CL
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 windows 
on page 83.)
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.
 
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.
 
 
 
						

							Troubleshooting and routine maintenance
107
C
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.
 
 
						

							108
cRelease the gray 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.
 
CAUTION 
We recommend that you place the drum 
unit on a clean, flat surface with a piece of 
disposable paper underneath it in case you 
accidentally spill or scatter toner.
 
 
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.
 
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