Lexmark X734de Service Manual page 105

Step Questions / actions
Place a voltmeter between the fuser DC
8
autoconnect pin 8 and ground (pin 6).
Does the meter read +5 V dc?
1. Replace the fuser.
9
2. Bring the printer up in the Diagnostics
menu (turn off the printer, press and hold
3 and 6, turn on the printer.)
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
Go to step 9.
Problem resolved.
7526
No
Replace the fuser DC
cable. See
"Fuser DC
cable removal" on
page 4-117.
Replace the system board.
See
"System board
removal" on page 4-165.
Diagnostic information
2-67
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