In this video, we're going to show you how to clean the corona wire on a DR 360 drum for Brother machines. First, open up the top of the printer and remove the drum toner cartridge unit. You will notice a green or blue tab on the right side of the drum toner cartridge. Press down the tab and slide it back and forth across the unit. Repeat this motion five to ten times to effectively clean the corona wire. After cleaning, don't forget to turn the tab back to its original position. Make sure to slide the tab all the way to the right until you hear a click. This process must be repeated every time you replace the toner cartridge. Once the cleaning is done, insert the cartridge back into the printer and close the cover. Your printer is now ready for use. For further information, please visit us at [website URL].