Lexmark MB2236 Service Manual page 220

Diagnostics and troubleshooting
c. Wait for 20 seconds, and then plug the power cord.
d. Turn on the printer.
Does the problem remain?
◦ Yes:
Go to the next step.
◦ No:
The problem is solved.
2. Perform the following tests:
a. Check the network cable for proper connection and damage.
b. Make sure that the network cable contacts are free from dirt or corrosion.
c. Make sure that the network cable is active.
Is the network cable properly connected and free of corrosion and damage?
◦ Yes:
Go to step 4.
◦ No:
Go to the next step.
3. Replace the network cable.
Does the problem remain?
◦ Yes:
Go to the next step.
◦ No:
The problem is solved.
4. Check the controller board ports and pins for damage.
Are the controller board ports and pins free of damage?
◦ Yes:
Go to the next step.
◦ No:
Go to step 9.
5. Perform the following tests:
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?
◦ Yes:
Go to the next step.
◦ No:
Go to step 9.
6. Make sure that the printer is using the latest firmware version, and update if necessary.
Does the problem remain?
◦ Yes:
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