Lexmark MS911 Service Manual page 130

Fuser roller pressure failure service check
Action
Step 1
Enter the Diagnostics menu, and then navigate to:
PRINTER SETUP > Reset Engine Service Error
Does the problem remain?
Step 2
a
Remove the fuser. See
b
Observe the fuser roller while moving the gears and levers engaged
to it. Check if the fuser roller properly retracts, and replace if
necessary.
Does the problem remain?
Step 3
Check the sensor (fusing pressure home).
Is it free of damage?
Step 4
Enter the Diagnostics menu, and then navigate to:
SENSOR TESTS > PRINTER SENSOR TESTS > Fusing pressure home
Does the sensor status change while toggling the sensor?
Step 5
a
Reseat the fusing pressure home sensor cable.
b
Check the sensor cable for damage, and replace if necessary.
Does the problem remain?
Step 6
Replace the sensor (fusing pressure home).
Does the problem remain?
Step 7
a
Reseat the fuser cables.
b
Check the fuser cables for damage, and replace if necessary.
Does the problem remain?
Step 8
a
Make sure that the fuser is properly installed.
b
Check the fuser for wear or damage, and replace if necessary. See
"Fuser removal" on page
Does the problem remain?
"Fuser removal" on page 230.
230.
Diagnostic information
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 7.
Go to step 6.
Go to step 7.
Go to step 8.
Go to step 9.
130
4021
No
The problem is solved.
The problem is solved.
Go to step 6.
Go to step 5.
The problem is solved.
The problem is solved.
The problem is solved.
The problem is solved.