Lexmark MS911 Service Manual page 317

19
From under the tray, remove the tamper paper present sensor actuator (C).
20
Remove the two screws (D), and then remove the front and rear aligners.
Note: The rear aligner has a clear plastic film, while the front aligner has a black plastic film.
21
Swing and then remove the middle aligner.
Repair information
317
4021, 7421