Lexmark MS911 Service Manual page 60

Action
Step 21
Check the expansion controller board pins for damage, and replace if
necessary. See "Expansion controller board removal" on page
Does the problem remain?
Step 22
Check the engine controller board pins for damage, and replace if
necessary. See "Engine controller board removal" on page
Does the problem remain?
MPF jam service check
Action
Step 1
Enter the Diagnostics menu, and then navigate to:
EVENT LOG > Display Log
Do most of the recent error codes end with a 1? (Example: 241.11, 200.91)
Step 2
Make sure that the MPF paper path, including the sensors, are free of
debris or dust.
Does the problem remain?
Step 3
Check the MPF empty sensor actuator for damage, and replace if
necessary.
Does the problem remain?
Step 4
Check the sensor (MPF empty).
Is it free of damage?
Step 5
Enter the Diagnostics menu, and then navigate to:
SENSOR TESTS > PRINTER SENSOR TESTS > MPF empty
Does the sensor status change while toggling the sensor?
Step 6
a
Reseat the MPF empty sensor cable.
b
Check the sensor cable for damage, and replace if necessary.
Does the problem remain?
Yes
Go to step 22.
294.
Contact the next level
of support.
296.
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 6.
Go to step 7.
Diagnostic information
60
4021
No
The problem is solved.
The problem is solved.
No
Go to step 8.
The problem is solved.
The problem is solved.
Go to step 7.
Go to step 8.
The problem is solved.