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2. Open the front cover and take the laser toner cartridge out along the track.
3. Press the blue button on the left side of drum component with left hand and lift the toner
cartridge handle with right hand at the same time to take the toner cartridge out.
4. Open the package of new drum component, take the protection device of drum component,
and put the drum component on a horizontal table.
5. Install the drum component along the inner track to finish installing toner cartridge.
