Lexmark MB2236 - Page 169

Action Yes No
Step 4
Replace the ADF pick assembly. See
“ADF pick assembly
removal” on page 260.
Does the problem remain?
Go to step 5. The problem is
solved.
Step 5
a Enter the Diagnostics menu, and then navigate to:
Scanner diagnostics > Sensor tests
b Find the sensor (ADF scan).
Does the sensor status change while toggling the sensor?
Go to step 8. Go to step 6.
Step 6
a Make sure that the sensor flag is free of dust or debris.
b Reseat all the cables on the controller board.
Does the problem remain?
Go to step 7. The problem is
solved.
Step 7
Replace the ADF assembly. See
“ADF scanner and flatbed
scanner removal” on page 261.
Does the problem remain?
Go to step 8. The problem is
solved.
Step 8
a Make sure that the ADF door properly closes.
b Check the ADF scan sensor flag for proper installation and
damage.
Is the sensor
flag
properly installed and free of damage?
Go to step 10. Go to step 9.
Step 9
Replace the ADF assembly. See
“ADF scanner and flatbed
scanner removal” on page 261.
Does the problem remain?
Go to step 10. The problem is
solved.
Step 10
a Make sure that the ADF paper path rollers are properly installed
and free of damage.
b Make sure that the rollers are free of dust and contamination.
Are the rollers properly installed and free of damage?
Go to step 12. Go to step 11.
Step 11
Replace the ADF assembly. See
“ADF scanner and flatbed
scanner removal” on page 261.
Does the problem remain?
Go to step 12. The problem is
solved.
3400-48x
Diagnostics and troubleshooting
169