Lexmark CS720 Service Manual page 106

Action
Step 8
Check the sensor and sensor flag for damage.
Is the sensor or sensor flag damaged?
Step 9
Replace the isolation unit. See
page 371.
Does the problem remain?
Sensor (MPF/pass‑through): Paper (MPF tray) failed to arrive 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 tray for overfilling.
Is the paper tray overfilled?
Step 4
Remove the excess paper from the MPF tray.
Does the problem remain?
Step 5
Check the paper condition in the MPF tray.
Is the paper crumpled or damaged?
Step 6
Replace the crumpled or damaged paper.
Does the problem remain?
Step 7
Check the condition of the MPF pick rollers.
Are the pick rollers free from excess wear, contamination, and
damage?
"Isolation unit removal" on
Diagnostic information
106
Yes No
Go to step 9. Contact the next
level of support.
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 4. Go to step 5.
Go to step 5. The problem is
solved.
Go to step 6. Go to step 7.
Go to step 7. The problem is
solved.
Go to step 9. Go to step 8.
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