Lexmark MB2236 Service Manual page 106

Action
Step 7
a
Enter the Diagnostics menu, and then navigate to:
Printer diagnostics & adjustment > Sensor tests
b
Find the following sensors:
•
Sensor (media present in tray1 S1)
•
Sensor (input sensor S3)
•
Sensor (fuser exit sensor S4)
Does the sensor status change while toggling the sensor?
Step 8
a
Check the sensor flags for proper installation and damage.
b
Check the sensor flags for proper alignment with the sensors.
c
Check the sensor flag springs for proper installation and
damage.
Are the sensor flags properly installed and free of damage?
Step 9
Replace the damaged sensor flag.
Does the problem remain?
Step 10
Check the cables for proper connection and damage.
Are the cables properly connected and free of damage?
Step 11
Replace the damaged cable.
Does the problem remain?
Step 12
a
Reseat all the cables on the controller board.
b
Check if the controller board LED lights up.
c
Check the controller board for proper installation and damage.
Is the controller board properly installed and free of damage?
Step 13
Replace the controller board. See
page 228.
Does the problem remain?
"Controller board removal" on
Diagnostics and troubleshooting
106
Yes No
Go to step 10. Go to step 8.
Go to step 10. Go to step 9.
Go to step 10. The problem is
solved.
Go to step 12. Go to step 11.
Go to step 12. The problem is
solved.
Contact the next Go to step 13.
level of support.
Contact the next The problem is
level of support. solved.
3400-48x