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Hello, you need to reset the Drum Unit life:
After changing a DR2000 drum unit in a Brother HL-2040, the printer's page count needs to be reset. This will turn off the drum warning light on the printer.
Simply open the front cover, and hold the "GO" button until all four LED's are lit. Release the "GO" button and close the front cover.
The Brother HL 2040 laser printer has a toner cartridge that supplies toner to the drum assembly so that the printer can print properly. When the LED on the front of the printer indicates you are low on toner, you will need to replace the toner cartridge to maintain good print quality. Fortunately, the toner cartridge can be replaced without any special tools.
Instructions Things You'll Need:
* Replacement toner cartridge (part number TN350 or TN360) * Paper towel or scrap paper
Grasp the front cover of the printer and pull it toward you to open the toner door. Reach into the printer and grab the combined toner cartridge/drum assembly. Lift up slightly and pull it out of the front of the printer.
Place the cartridge and drum on a paper towel, spare sheet of paper, rag or other surface that can get dirty. Loose toner particles may spill from the cartridge.
Press the blue locking lever on the cartridge/drum unit to unlock the toner cartridge from the drum. Lift the toner cartridge up and away from the drum unit. Dispose of the old toner cartridge in accordance with your local regulations. Seal it in a plastic bag to keep loose toner from spilling.
Gently shake your new toner cartridge back and forth a few times to distribute the toner evenly across the width of the cartridge. Remove the plastic protective cover from the bottom of the cartridge.
Place the new toner cartridge onto the drum unit and press it down gently until it locks into place. The blue locking lever will automatically click into place. Verify that the toner cartridge is securely connected to the drum.
Locate the corona wire cleaner tab at the front of the drum unit. Slide it back and forth several times to improve the print quality of the drum. Set the tab back in the home position when finished.
Slide the combined toner cartridge/drum unit back into the printer and close the front cover.
wecan reset brother cartage 2ways. when we are filling at that time we can adjust white ringe of cartage. otherway after reffiling . and when we put cartage in side the printer. we should push white and black point and start the printer .then it wi be reset.(it is tech. private methode)
I have 'reused' the same drum three times and still prints like a charm.
Open the toner door and pull out the toner/drum assembly. Take the toner off the drum tray. Use a alcohol pad or lint free cloth and wipe the mauve coloured drum to remove the excess lint and toner collected on the drum. Rotate the drum with the white gear and keep cleaning until the whole drum is done.
Put the toner back in the drum tray. Clean the corona wire by sliding the blue tab back and forth 3 or 4 times. Put the toner/drum back into the printer and close the door.
After the printer does the self test the drum light will cone on again so then you need to reset the counters.
Open the door again
Hold the GO button until all 4 lights are lit up
Release the GO button
Close the door
Printer will self test and should extinguish all the trouble lights.
Yes, the DRUM UNIT has reached the end of its life and must be replaced. You can order a new one from BROTHER,or a local office supply store may have it in stock. It is easy to replace, instructions are included, and when the new one is installed, the DRUM ERROR LIGHT will turn off , and the machine will be ready to use.
Could be that there are a mark on the drum itself or some dirt, remove the drum unit and inspect the surface , by rotating the drum , becareful not to touch the drum as it will leave marks on the surface