Lexmark MB2236 Service Manual page 155

Action
Step 5
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 6
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 7
Replace the damaged sensor flag.
Does the problem remain?
Step 8
a
Reseat the two printhead cables at both ends.
b
Check the printhead cables for proper connection.
c
Check the printhead for proper installation and damage.
d
Perform a print test.
Does the problem remain?
Step 9
Make sure that the printhead lens is clean and free of
contamination.
Does the problem remain?
Step 10
Replace the printhead. See
Does the problem remain?
Step 11
Check the cables for proper connection and damage.
Are the cables properly connected and free of damage?
"Printhead removal" on page
Diagnostics and troubleshooting
155
Yes
Go to step 8.
Go to step 8.
Go to step 8.
Go to step 9.
Go to step 10.
Go to step 11.
251.
Go to step 13.
3400-48x
No
Go to step 6.
Go to step 7.
The problem is
solved.
The problem is
solved.
The problem is
solved.
The problem is
solved.
Go to step 12.