Lexmark X543 Service Manual page 249

15.
Swing the rear part away from the printer to access the spring (G), and remove the spring (G) from the right
lower frame.
16.
Disconnect the cable (H) from the tray present sensor.
17.
Swing the rear of the lower frame away from the printer, and remove the right lower frame.
Note: There are parts in the right lower frame that are not included in the frame. The following instructions
show how to remove them.
18.
Remove the sensor retaining plate (J), and pinch the latches (K) together to remove the tray present
sensor.
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Repair information