Lexmark MX910de Service Manual page 171

Tray 2 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 > PRINTER MOTOR TESTS > Tray 2 lift
Does the motor run?
Step 3
a
Reseat the tray 2 lift motor cable.
b
Check the cable for damage, and replace if necessary.
Does the problem remain?
Step 4
Replace the motor (tray 2 lift).
Does the problem remain?
Step 5
a
Make sure that the tray set sensor actuator is properly installed.
b
Check the actuator for damage, and replace if necessary.
Does the problem remain?
Step 6
Check the sensor (tray 2 lift plate level).
Is it free of damage?
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 tray 2 lift plate level sensor cable.
b
Check the cable for damage, and replace if necessary.
Does the problem remain?
Yes
Go to step 2.
Go to step 5.
Go to step 4.
Go to step 5.
Go to step 6.
Go to step 7.
Go to step 10.
Go to step 9.
Diagnostic information
171
7421
No
The problem is solved.
Go to step 3.
The problem is solved.
The problem is solved.
The problem is solved.
Go to step 9.
Go to step 8.
The problem is solved.