Lexmark MB2236 Service Manual page 140

Action
Step 10
a
Check the sensor for proper installation and damage.
b
Check the alignment with the sensor flag.
c
Check the sensor cable for proper connection and damage.
Is the sensor properly installed and free of damage?
Step 11
Replace the sensor.
Does the problem remain?
Step 12
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 13
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 14
Replace the damaged sensor flag.
Does the problem remain?
Step 15
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 16
Replace the controller board. See
page 228.
Does the problem remain?
"Controller board removal" on
Diagnostics and troubleshooting
140
Yes No
Go to step 12. Go to step 11.
Go to step 12. The problem is
solved.
Go to step 15. Go to step 13.
Go to step 15. Go to step 14.
Go to step 15. The problem is
solved.
Contact the next Go to step 16.
level of support.
Contact the next The problem is
level of support. solved.
3400-48x