Brother Hl 3040cn User Manual

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eSlide each drum unit and toner cartridge assembly into the printer. Make sure that you match the toner 
cartridge color to the same color label on the printer. Repeat this for all the drum unit and toner cartridge 
assemblies.
fClose the top cover of the printer.
When you replace the belt unit with a new one, you need to reset the belt unit counter by completing the 
following steps:
aTurn the printer power switch back on.
bPress + or - to choose Machine Info..
cPress...

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Waste toner box5
Order No. WT-200CL
The life of a waste toner box is approximately 50,000 A4 or Letter size single-sided pages.
WT Box End Soon message5
 
WT Box End Soon
If the LCD shows WT Box End Soon, it means the waste toner box is near the end of its life. Buy a new 
waste toner box and have it ready before you get a Replace WT Box message. To replace the waste toner 
box, see Replacing the waste toner box on page 123.
Replace WT Box message5
When the following...

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Replacing the waste toner box5
aTurn off the printer power switch. Fully open the top cover by lifting up on the handle (1). 
bTake out all the drum unit and toner cartridge assemblies.  
1
 

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IMPORTANT
 We recommend that you place the drum unit and toner cartridge assembly on a clean, flat surface with a 
sheet of disposable paper or cloth underneath it in case you accidentally spill or scatter toner.
 To prevent damage to the printer from static electricity, DO NOT touch the electrodes shown in the 
illustration.
 
 Handle the toner cartridge carefully. If toner scatters on your hands or clothes, wipe or wash it off with cold 
water at once.
 To avoid...

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IMPORTANT
To avoid print quality problems, DO NOT touch the shaded parts shown in the illustrations.
 
dRemove the orange packing material and discard it. 
Note
This step is only necessary when you are replacing the waste toner box for the first time. The orange 
packing is installed at the factory to protect your machine during shipment. The orange packing is not 
required for replacement waste toner boxes.
    
 

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eHold the green handle of the waste toner box and remove the waste toner box from the printer. 
CAUTION 
Handle the waste toner box carefully in case you accidentally spill or scatter toner. If toner scatters on your 
hands or clothes, wipe or wash it off with cold water at once.
 
Note
Discard the used waste toner box according to local regulations, keeping it separate from domestic waste. 
If you have questions, call your local waste disposal office.
 
fUnpack the new...

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gPut the belt unit back in the printer. 
hSlide each drum unit and toner cartridge assembly into the printer. Make sure that you match the toner 
cartridge color to the same color label on the printer. Repeat this for all the drum unit and toner cartridge 
assemblies.
iClose the top cover of the printer.
jTurn the printer power switch back on.
  
C - Cyan
M - MagentaY - Yellow
K - Black
C
M
Y
K
 

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Cleaning5
Clean the outside and inside of the printer regularly with a dry, lint-free cloth. When you replace the toner 
cartridge or the drum unit, make sure that you clean the inside of the printer. If printed pages are stained with 
toner, clean the inside of the printer with a dry, lint-free cloth.
WARNING 
Use neutral detergents. Cleaning with volatile liquids such as thinner or benzine will damage the surface of 
the printer.
  
DO NOT use cleaning materials that...

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bPull the paper tray completely out of the printer. 
cWipe the outside of the printer 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. 
 

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fPut the paper tray back in the printer.
gPlug the printer back in, and then turn on the power switch.
Cleaning the LED head5
aTurn off the printer power switch and then unplug the printer. 
bFully open the top cover by lifting up on the handle (1). 
1