Action Yes No
Step 6
a Reseat all the scanner cables on the controller board.
b Enter the Diagnostics menu, and then navigate to:
Scanner diagnostics > Motor tests > Flatbed scanner
Did the motor run?
Go to step 9. Go to step 7.
Step 7
a Make sure that the flatbed scanner cables are properly
connected and free of damage.
b Check the flatbed scanner for proper installation and damage.
Is the flatbed scanner properly installed and free of damage?
Go to step 9. Go to step 8.
Step 8
Replace the flatbed scanner. See
“ADF scanner and flatbed
scanner removal” on page 261.
Does the problem remain?
Go to step 9. The problem is
solved.
Step 9
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 10.
Step 10
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.
Flatbed home position service check
Action Yes No
Step 1
Raise the ADF assembly, and then make sure that the scan area is
free of dust and obstructions.
Does the problem remain?
Go to step 2. The problem is
solved.
Step 2
a Reseat all the scanner cables on the controller board.
b Perform a POR.
Does the problem remain?
Go to step 3. The problem is
solved.
3400-48x
Diagnostics and troubleshooting
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