Lexmark CS720 Service Manual page 103

Action
Step 10
a
Enter the Diagnostics menu, and then navigate to:
Printer diagnostics & adjustments > Motor tests > Deskew
b
Touch Start.
Does the motor run?
Step 11
Check the motor cable for proper connection and damage, and
replace if necessary.
Does the problem remain?
Step 12
a
Replace the motor (registration).
b
Perform a print job.
Does the problem remain?
Sensor (MPF/pass‑through): Paper (MPF/pass‑through) cleared too early service check
Action
Step 1
a
From the home screen, touch Settings > Device > Preferences.
b
Check if the paper size matches the size set on the tray guides.
Does the paper size match the size set on the tray?
Step 2
Change the paper size or adjust the size setting in the tray.
Does the problem remain?
Step 3
Check the duplex rollers for damage.
Are the rollers free of damage?
Step 4
Replace the duplex.
Does the problem remain?
Diagnostic information
103
Yes No
Contact the next Go to step 11.
level of support.
Go to step 12. The problem is
solved.
Contact the next The problem is
level of support. solved.
Yes No
Go to step 3. Go to step 2.
Go to step 3. The problem is
solved.
Go to step 5. Go to step 4.
Go to step 5. The problem is
solved.
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