Lexmark MB2236 Service Manual page 131

Unsupported USB device service check
Action
Step 1
a
Turn off the printer.
b
Disconnect the power cord.
c
Wait for 10 seconds, and then turn on the printer.
Does the problem remain?
Step 2
a
Check if the flash drive is set to the correct file system.
b
Check if the flash drive is detected on the computer.
Is the flash drive set to the correct file system, and is it detected?
Step 3
Format the flash drive to the correct file system.
Does the problem remain?
Step 4
From the control panel, go to Settings > Device > Restore factory
defaults.
Does the problem remain?
Step 5
Check the cables for proper connection and damage.
Are the cables properly connected and free of damage?
Step 6
Replace only the damaged cable.
Does the problem remain?
Step 7
a
Upgrade the firmware.
Note: Contact your next level of support for the correct
firmware level to use.
b
Perform a POR.
c
Perform a print test.
Does the problem remain?
Diagnostics and troubleshooting
131
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.
Go to step 5. The problem is
solved.
Go to step 7. Go to step 6.
Go to step 7. The problem is
solved.
Go to step 8. The problem is
solved.
3400-48x