*Step1: Open the front flap of your laser printer and find the drum unit will be attached to or beneath the toner cartridge(s).
*Step2: Pull any green toner locking levers down to release the cartridge and then slowly pull the cartridge towards yourself and out of the machine. Place the toners on a flat protected surface.
*Step3: On the toner cartridge(s) there will be a green lever that can be pressed to lift the toner off the drum unit.
*Step4: The drum unit can then be replaced and toner locked back into place on top of the new drum.
*Step5: Re-insert both toner and drum back into your printer.