Dell 5210n Mono Laser Printer User Manual page 42

3. Press on the end of the tab.
4. Pull the pick roller off the arm.
5. Repeat step 3 and step 4 on the other side to remove the other pick roller.
6. Gently release the pick roller arm.
7. Discard the used pick rollers.
8. Remove the two pick rollers from the packaging.
9. Pull the pick roller arm down.
10. Locate the recessed area on the pick roller, and align it with the tab on the arm.
NOTE: There are two arrows on each pick roller. Make sure the bottom arrow faces you as you align the recessed area with the tab.
11. Push the pick roller onto the arm with the tab aligned.