Lexmark CS720 Service Manual page 107

Action
Step 8
Replace the pick rollers.
Does the problem remain?
Step 9
a
Check the pick rollers for proper installation.
b
Firmly press the pick roller assembly upward to make sure that
it is properly engaged to the shaft.
Is the pick roller assembly properly installed?
Step 10
Reinstall the pick roller assembly.
Does the problem remain?
Step 11
Check the paper path exiting the tray.
Is the paper path free of fragments and contamination?
Step 12
Clean the paper path.
Does the problem remain?
Step 13
Check the tray paper path and drive gears for damage, and replace
the tray if necessary.
Does the problem remain?
Step 14
a
Enter the Diagnostics menu, and then navigate to:
Printer diagnostics & adjustments > Sensor tests
b
Find the sensor (MPF/pass‑through).
Does the sensor status change while toggling the sensor?
Step 15
Check the sensor cable for proper connection and damage, and
replace if necessary.
Does the problem remain?
Step 16
Check the sensor for damage, and replace if necessary.
Does the problem remain?
Diagnostic information
107
Yes No
Go to step 9. The problem is
solved.
Go to step 11. Go to step 10.
Go to step 11. The problem is
solved.
Go to step 13. Go to step 12.
Go to step 13. The problem is
solved.
Go to step 14. The problem is
solved.
Go to step 17. Go to step 15.
Go to step 16. The problem is
solved.
Go to step 17. The problem is
solved.
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