To replace the imaging drum and air filters
1 2 Open the front door. Swing the upper (blue) lever to the right. Then, press the white button on the lower (green) lever and swing it to the right. Pull the drum partway out. Grasp the blue handle on the top of the drum and remove the imaging drum.
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CAUTION A gray cover protects the new imaging drum. Do not remove this cover; it will come off during the next step. 4 4 Line up the guides and push firmly to slide the new drum into the printer. The cover will slide off as the drum enters the printer. Swing the upper (blue) lever to the left. Then swing the lower (green) lever to the left, making sure it clicks into place. Close the front door and open the upper door on the right side of the printer. On the inside of the door, locate the density sensor and the density sensor brush. Use the brush to brush toner particles from the density sensor. Then replace the brush, and close the upper right door.
