Lexmark X746de Service Manual page 111

Step Questions / actions
1. Replace the fuser.
9
2. Enter Diagnostics mode (press and hold
buttons 3 and 6, turn on the MFP, and
release the buttons when the progress bar
displays.
3. Touch SENSOR TESTS.
4. Touch Dynamic Sensors.
5. Touch Fuser Exit.
6. Open the front access door, and the top
access cover.
7. Activate the fuser exit sensor.
Did the fuser exit sensor change from Open to
Closed on the touchscreen?
Yes
Problem resolved.
7526
No
Replace the system board.
See
"System board
removal" on page 4-165.
Diagnostic information
2-71
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