This is a compatible Brother TN-3440 Black Toner cartridge. it deliveres an estimated page yield of 8,000 printes. The Toner is compatible with a range of the below Brother printers, It contains a single Black toner cartridge, it comes with a 100% quality guaranteed, and 100% product replacement warranty. 

The Brother machine has separate consumables the toner cartridge and the drum unit. Verify you replace only the toner cartridge and not the drum unit.

Follow the steps below to clear the Replace Toner message.

1. Make sure that the machine is turned on. Open the front cover.

2. Remove the toner cartridge and drum unit assembly from the machine.

3. Push down the green lock lever and take the toner cartridge out of the drum unit.

4. Unpack the new toner cartridge. Remove the protective cover.

5. Put the new toner cartridge firmly into the drum unit until you hear it lock into place.

6. Make sure you put the toner cartridge in correctly or it may separate from the drum unit.

7. Clean the corona wire inside the drum unit by gently sliding the green tab from left to right and right to left several times.

8. Be sure to return the tab to the Home position (). The arrow on the tab must be aligned with the arrow on the drum unit. If it is not, printed pages may have a vertical stripe.

9. Install the toner cartridge and drum unit assembly back into the machine.

10. Close the front cover of the machine.

After replacing a toner cartridge, DO NOT turn off the machine or open the Front cover until the machine's display returns to Ready Mode.

This Brother TN-3440 Black Toner Cartridge is great for ensuring that your printer continues to produce sharp, crisp and professional documents. It's specially designed to work with Brother printers and is easy to install so you can do it yourself. The toner is designed to work at specific temperatures for great quality print results. 

100% warranty. 

Easy to install and exceptional print quality time after time print after print.