Lexmark MS911 Service Manual page 150

Action
Step 7
Enter the Diagnostics menu, and then navigate to:
SENSOR TESTS > PRINTER SENSOR TESTS > Tray 2 lift plate limit
Does the sensor status change while toggling the sensor?
Step 8
a
Reseat the sensor cable.
b
Check the cable for damage, and replace if necessary.
Does the problem remain?
Step 9
Replace the sensor.
Does the problem remain?
Step 10
Check the engine controller board pins for damage, and replace if
necessary. See "Engine controller board removal" on page
Does the problem remain?
2 x 500‑sheet tray 3 lift plate failure service check
Action
Step 1
Enter the Diagnostics menu, and then navigate to:
PRINTER SETUP > Reset Engine Service Error
Does the problem remain?
Step 2
Enter the Diagnostics menu, and then navigate to:
MOTOR TESTS > 2 x 500-Sheet Tray Motor Tests > Tray 3 lift
Does the motor run?
Step 3
a
Reseat the motor cable.
b
Check the cable for damage, and replace if necessary.
Does the problem remain?
Step 4
Replace the motor. See "Motor (2 x 500-sheet tray lift) removal" on
page 370.
Does the problem remain?
Yes
Go to step 10.
Go to step 9.
Go to step 10.
Contact the next level
of support.
296.
Yes
Go to step 2.
Go to step 5.
Go to step 4.
Go to step 5.
Diagnostic information
150
4021
No
Go to step 8.
The problem is solved.
The problem is solved.
The problem is solved.
No
The problem is solved.
Go to step 3.
The problem is solved.
The problem is solved.