Lexmark MB2236 - Page 167

Action Yes No
Step 4
Check controller board ports and pins for damage.
Are the controller board ports and pins free of damage?
Go to step 5. Go to step 9.
Step 5
a Make sure that the Wi-Fi is connected to the network.
b Make sure that the Wi-Fi setting is correct.
c Check the Wi-Fi antenna for proper installation and damage.
Is the Wi-Fi antenna properly installed and free of damage?
Go to step 6. Go to step 9.
Step 6
Make sure that the printer is using the latest firmware version, and
update if necessary.
Does the problem remain?
Go to step 7. The problem is
solved.
Step 7
Check the cables for proper connection and damage.
Are the cables properly connected and free of damage?
Go to step 9. Go to step 8.
Step 8
Replace only the damaged cable.
Does the problem remain?
Go to step 9. The problem is
solved.
Step 9
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?
Contact the next
level of support.
Go to step 10.
Step 10
Replace the controller board. See
“Controller board removal” on
page 228.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
3400-48x
Diagnostics and troubleshooting
167