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Drum unit

A new drum unit can print approximately 25,000 A4 or Letter size single-sided pages at 1 per/ job.
Note Note
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There are many factors that determine the actual drum life, such as the temperature, humidity, type of paper, type of toner used and so on. Under ideal conditions, the average drum life is estimated at approximately 25,000 pages. The actual number of pages that your drum will print may be significantly less than this estimate. 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.
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For best performance, use only genuine Brother toner. The printer should be used only in a clean, dust-free environment with adequate ventilation.
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Printing with a third-party drum unit may reduce not only the print quality but also the quality and life of the printer itself. Warranty coverage therefore cannot apply to problems caused by the use of a third-party drum unit.
DRUM END SOON message
DRUM END SOON
If the LCD shows DRUM END SOON, it means the drum unit is near the end of its life. We recommend that you replace the drum unit with a new one before there is a noticeable deterioration in the print quality.
REPLACE DRUM message
REPLACE DRUM
If the LCD shows REPLACE DRUM, it means the drum unit should be replaced. Please replace it with a new drum unit.
Replacing the drum unit
IMPORTANT IMPORTANT
While removing the drum unit, handle it carefully because it may contain toner.
Every time you replace the drum unit, clean the inside of the printer.See Cleaning.
When you replace the drum unit with a new one, you need to reset the drum counter by completing the following steps:
1
Press the front cover release button and then open the front cover.
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2
Take out the drum unit and toner cartridge assembly.
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IMPORTANT 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 printer caused by static electricity, DO NOT touch the electrodes shown in the illustration.
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3
Push down the blue lock lever and take the toner cartridge out of the drum unit.
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WARNING WARNING
DO NOT put a toner cartridge into a fire. It could explode, resulting in injuries.
Use neutral detergents when cleaning the printer.
DO NOT use cleaning materials that contain ammonia, alcohol, any type of spray, or any type of flammable substance to clean the outside or inside of the machine. Doing this may cause a fire or electrical shock.
Be careful not to inhale toner.
IMPORTANT IMPORTANT
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.
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4
Unpack the new drum unit.
IMPORTANT IMPORTANT
Wait to unpack a drum unit until immediately before you put it in the printer. Exposure to direct sunlight or room light may damage the drum unit.
5
Put the toner cartridge firmly into the new drum unit until you hear it lock into place. If you put the cartridge in properly, the blue lock lever will lift automatically.
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Note Note
Make sure that you put in the toner cartridge properly, or it may separate from the drum unit.
6
Put the drum unit and toner cartridge assembly back in the printer.
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7
Hold down Go until the message DRUM CLEAR is displayed on the LCD, then release Go.
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IMPORTANT IMPORTANT
Do not reset the drum counter when you only replace the toner cartridge.
8
Close the front cover.
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