Lexmark W820 Service Manual page 299

Removal
1.
Remove the Rear Cover Assembly.
2.
Disconnect J232 and J233 from the Interlock Switch.
3.
Remove the screw that secures the Interlock Switch Bracket to the printer frame, and
pull the Assembly out of the printer.
4.
Rotate the Switch Lever so it is straight up, and slide it off of the Bracket.
5.
Press the two clips securing the Switch to the Bracket and push the Switch out of the
Bracket.
Replacement
1.
Position the Switch against the opening in the Bracket so the two wire terminals are
on the outside of the Bracket, away from the screw hole.
2.
Press the Switch into the Bracket. It snaps into place.
3.
Position the Switch Lever against the Switch, with the foot of the Lever facing out.
4.
Rotate the Switch Lever so it is straight up, and slide it onto the Bracket. Press and
release the Lever to make sure it is functioning correctly.
5.
Open the Duplex Unit and the Left Upper Cover.
6.
Position the Switch Bracket against the printer frame, slightly down from the screw
hole in the printer frame.
7.
Raise the Bracket so the aligning key at the bottom of the Switch meshes with the
slot in the printer frame. The key and slot keep the Bracket from moving during
operation.
8.
Align the screw hole in the Bracket with the screw hole in the Frame.
9.
Use one screw to secure the Interlock Switch Assembly to the printer frame.
10.
Open and close the Left Upper Cover to make sure the Switch functions correctly.
11.
Reconnect J232 and J233 to the Interlock Switch.
12.
Reinstall the Rear Cover Assembly.
4025-XXX
4-91
Repair Information