Lexmark MB2236 Service Manual page 129

Action
Step 5
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?
Step 6
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 7
Replace the controller board. See
page 228.
Does the problem remain?
Toner cartridge service check
Action
Step 1
Make sure that the imaging unit and toner cartridge is a genuine
Lexmark supply.
Does the problem remain?
Step 2
a
Shake the toner cartridge.
b
Clean the toner cartridge smart chip contacts, and then check
the contacts for damage.
c
Clean the toner cartridge spring contacts, and then check the
contacts for damage.
d
Perform a print test.
Does the problem remain?
Step 3
Replace the toner cartridge.
Does the problem remain?
"Controller board removal" on
Diagnostics and troubleshooting
129
Yes No
Go to step 6. The problem is
solved.
Contact the next Go to step 7.
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 3. The problem is
solved.
Go to step 4. The problem is
solved.
3400-48x