Action Yes No
Step 5
a Reseat the ADF cable.
b Check the ADF cable for proper connection and damage.
c Check the ADF assembly for proper installation and damage.
d Check the ADF door sensor for damage.
Is the ADF assembly properly installed and free of damage?
Go to step 7. Go to step 6.
Step 6
Replace the ADF assembly. See
“ADF scanner and flatbed
scanner removal” on page 261.
Does the problem remain?
Go to step 7. The problem is
solved.
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.
3400-48x
Diagnostics and troubleshooting
188
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