Lexmark MB2236 - ADF Door Open Service Check

Action Yes No
Step 7
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?
Contact the next
level of support.
Go to step 8.
Step 8
Replace the controller board. See
“Controller board removal” on
page 228.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
ADF door open service check
Action Yes No
Step 1
a Clean the ADF pick rollers and separator pad.
b Enter the Diagnostics menu, and then navigate to:
Scanner diagnostics > Feed test
Does the problem remain?
Go to step 2. The problem is
solved.
Step 2
a Check the ADF pick and feed rollers for wear, damage, and
contamination.
b Check the ADF pick separator pad for wear, damage,
contamination, and spring load.
c Check if the ADF door properly closes.
Is the ADF pick assembly properly installed and free of damage?
Go to step 4. Go to step 3.
Step 3
Replace the ADF pick assembly. See
“ADF pick assembly
removal” on page 260.
Does the problem remain?
Go to step 4. The problem is
solved.
Step 4
a Enter the Diagnostics menu, and then navigate to:
Scanner diagnostics > Motor tests
b Select Motor (ADF transport).
Does the motor run?
Go to step 6. Go to step 5.
3400-48x
Diagnostics and troubleshooting
187