1. Pull the finisher [A]
  2. Remove the finisher front cover [A] (x2)
  3. Remove the left lower cover [A] (x2)
  4. Rotate the gear [A] to lift down the movable tray [B].
  5. Remove the paper exit tray [A] (x2)
  6. Paste the Mylar [A] on the full detection feeler [B].
  7. Re-attach the paper exit tray (x2)
  8. Move the movable tray [A] up and down to check that the Mylar does go through the sensor properly.
  9. Re-attach the left lower cover (x2)
  10. Re-attach the finisher front cover (x2)