Lexmark MS517dn Service Manual page 309

4
Remove the top cover. See
5
Disconnect the cable JNRW1 from the controller board.
6
Remove the six screws (A) securing the sensor and upper exit guide to the redrive assembly.
7
Remove the ground (B), sensor (C), and sensor flag (D).
"Top cover removal" on page
A
Parts removal
309
315.
B
C
D
4514-6xx