Brother HL 2250DNR User Manual

Routine Maintenance 
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Drum unit4
A new drum unit can print approximately 12,000 A4 or Letter size single-sided pages at 1 page / job.
Note
• There are many factors that determine the actual drum life, such as the temperature, humidity, type of 
paper, type of toner used, number of pages per print job and so on. Under ideal conditions, the average 
drum life is estimated at approximately 12,000 pages. The actual number of pages that your drum will print 
may be significantly less than this estimate....

Routine Maintenance 
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REPLACE DRUM4
If the Drum LED is on, it means the drum unit should be replaced. Please replace it with a new Brother drum 
unit.
 
DRUM STOP4
If the Drum and Error LEDs are on, it means the drum unit must be replaced. Replace it with a new Brother 
drum unit.
 
 

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Replacing the drum unit4
Before you replace the drum unit, see Before replacing the consumable items on page 67.
When you replace the drum unit with a new one, you need to reset the drum counter by completing the 
following steps:
aMake sure that the machine is turned on and the Drum LED is flashing. Leave the machine for at least 
10 minutes to cool down.
bOpen the front cover. 
cTake out the drum unit and toner cartridge assembly. 
 

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IMPORTANT
• We recommend that you put the drum unit and toner cartridge assembly on a piece of disposable paper 
or cloth in case you accidentally spill or scatter toner.
• To prevent damage to the machine from static electricity, DO NOT touch the electrodes shown in the 
illustration.
 
 
dPush down the green lock lever and take the toner cartridge out of the drum unit. 
eUnpack the new drum unit.
 

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fPut the toner cartridge firmly into the new drum unit until you hear it lock into place. If you put the cartridge 
in properly, the green lock lever will lift automatically.
 
gPut the drum unit and toner cartridge assembly back into the machine. Do not close the front cover yet. 
 

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hPress and hold down  Go for about 4 seconds until all the LEDs light up. Once all four LEDs are lit, 
release Go.
 
IMPORTANT
Do not reset the drum counter when you only replace the toner cartridge.
 
iClose the front cover.
jMake sure that the Drum LED is now off.
 

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Cleaning4
Clean the outside and inside of the machine 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 machine. If printed pages are stained 
with toner, clean the inside of the machine with a dry, lint-free cloth.
WARNING 
DO NOT use flammable substances, any type of spray or any organic solvent/liquid that contains alcohol 
or ammonia to clean the inside or outside of the machine. Doing...

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Cleaning the outside of the machine4
aTurn off the machines power switch. Disconnect all cables, and then unplug the power cord from the AC 
power outlet.
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 all the paper, and anything that is stuck inside, from the paper tray.
eWipe the inside of the paper tray with a dry, lint-free cloth to remove dust. 
fPut the paper back in the paper tray....

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Cleaning the corona wire4
If you have print quality problems, clean the corona wire as follows:
aOpen the front cover and leave the machine for at least 10 minutes to cool down.  
bTake out the drum unit and toner cartridge assembly. 
IMPORTANT
• We recommend that you put the drum unit and toner cartridge assembly on a piece of disposable paper 
or cloth in case you accidentally spill or scatter toner.
• To prevent damage to the machine from static electricity, DO NOT touch the...

Routine Maintenance 
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cClean the primary corona wire inside the drum unit by gently sliding the green tab from right to left and 
left to right several times. 
 
Note
Be sure to return the tab to the home position (a) (1). If you do not, printed pages may have a vertical stripe.
 
dPut the drum unit and toner cartridge assembly back into the machine. Close the front cover. 
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