Lexmark CS720 Service Manual page 118

Action
Step 8
Check the sensor for damage and replace if necessary. See
"Sensor (input) removal" on page
Does the problem remain?
Step 9
a
Enter the Diagnostics menu, and then navigate to:
Printer diagnostics & adjustments > Motor tests > Isolation
b
Touch Start.
Does the motor run?
Step 10
Check the motor cable for proper connection and damage, and
replace if necessary.
Does the problem remain?
Step 11
a
Replace the isolation unit. See
page 371.
b
Perform a print job.
Does the problem remain?
Sensor (tray 1 pick): Paper 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 tray overfilled?
Step 4
Remove the excess paper from the tray.
Does the problem remain?
341.
"Isolation unit removal" on
Diagnostic information
118
Yes No
Go to step 9. The problem is
solved.
Contact the next Go to step 10.
level of support.
Go to step 11. 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 4. Go to step 5.
Go to step 5. The problem is
solved.
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