Lexmark CS720 Service Manual page 133

Action
Step 9
Check the paper path for partially fed or jammed paper.
Is the paper path free of partially fed or jammed paper?
Step 10
Remove the partially fed or jammed paper.
Does the problem remain?
Step 11
a
Enter the Diagnostics menu, and then navigate to:
Additional input tray diagnostics > Sensor tests
b
Find the sensor (Pass-through (tray 2)).
Does the sensor status change while toggling the sensor?
Step 12
Reseat the sensor cable, and then check the sensor for
misalignment and damage.
Is the sensor properly installed and free of damage?
Step 13
Reinstall or replace the sensor. See
through) removal" on page
Does the problem remain?
Step 14
a
Enter the Diagnostics menu, and then navigate to:
Additional input tray diagnostics > Motor tests
b
Find the motor (Pass-through (tray 2)), and then touch Start.
Does the motor run?
Step 15
Reseat the motor cable, and then check the motor for misalignment
and damage.
Is the motor properly installed and free of damage?
Step 16
Reinstall or replace the motor. See
pass‑through) removal" on page
Does the problem remain?
"Sensor (550-sheet tray pass-
379.
"Motor (550-sheet tray
376.
Diagnostic information
133
Yes No
Go to step 11. Go to step 10.
Go to step 11. The problem is
solved.
Go to step 14. Go to step 12.
Go to step 14. Go to step 13.
Go to step 14. The problem is
solved.
Go to step 17. Go to step 15.
Go to step 17. Go to step 16.
Go to step 17. The problem is
solved.
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