Action Yes No
Step 2
a Enter the Diagnostics menu, and then navigate to:
Scanner diagnostics > Sensor tests
b Find the sensor (ADF top door interlock).
Does the sensor status change while toggling the sensor?
Go to step 5. Go to step 3.
Step 3
a Make sure that the switch actuator is properly installed and free
of damage.
b Reseat all the ADF and flatbed scanner cables on the controller
board.
Does the problem remain?
Go to step 4. The problem is
solved.
Step 4
Replace the ADF assembly. See
“ADF scanner and flatbed
scanner removal” on page 261.
Does the problem remain?
Go to step 5. The problem is
solved.
Step 5
Check the ADF door sensor flag for proper installation and
damage.
Is the sensor
flag
properly installed and free of damage?
Go to step 7. Go to step 6.
Step 6
Replace the ADF pick assembly. See
“ADF pick assembly
removal” on page 260.
Does the problem remain?
Go to step 7. The problem is
solved.
Step 7
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 8. The problem is
solved.
Step 8
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 10. Go to step 9.
3400-48x
Diagnostics and troubleshooting
171
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