Lexmark MB2236 Service Manual page 123

Action
Step 10
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 11
Replace the controller board. See
page 228.
Does the problem remain?
Black imaging unit or photoconductor smart chip or sensor problem service check
Action
Step 1
a
Open the front door.
b
Reseat the imaging unit and toner cartridge.
c
Close the front door.
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?
Step 4
a
Shake the imaging unit.
b
Clean the imaging unit smart chip contacts, and then check the
contacts for damage.
c
Clean the imaging unit spring contacts, and then check the
contacts for damage.
d
Perform a print test.
Does the problem remain?
"Controller board removal" on
Diagnostics and troubleshooting
123
Yes No
Contact the next Go to step 11.
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.
Go to step 5. The problem is
solved.
3400-48x