Lexmark MB2236 Service Manual page 166

Action
Step 3
Check the cables for proper connection and damage.
Are the cables properly connected and free of damage?
Step 4
Replace only the damaged cable.
Does the problem remain?
Step 5
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 6
Replace the controller board. See
page 228.
Does the problem remain?
Network software error service check
Action
Step 1
a
Unplug the power cord from the printer.
b
Wait for 20 seconds, and then turn on the printer.
Does the problem remain?
Step 2
a
Check 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?
Step 3
Replace the network cable.
Does the problem remain?
"Controller board removal" on
Diagnostics and troubleshooting
166
Yes No
Go to step 5. Go to step 4.
Go to step 5. The problem is
solved.
Contact the next Go to step 6.
level of support.
Contact the next The problem is
level of support. solved.
Yes No
Go to step 2. The problem is
solved.
Go to step 4. Go to step 3.
Go to step 4. The problem is
solved.
3400-48x