Fuser roller pressure failure service check
Action Yes No
Step 1
Enter the Diagnostics menu, and then navigate to:
PRINTER SETUP > Reset Engine Service Error
Does the problem remain?
Go to step 2. The problem is solved.
Step 2
a Remove the fuser. See “Fuser removal” on page 279.
b Observe the fuser roller while moving the gears and levers engaged
to it. Check if the roller properly retracts, and replace if necessary.
Does the problem remain?
Go to step 3. The problem is solved.
Step 3
Check the sensor (fusing pressure home).
Is it free of damage?
Go to step 4. Go to step 6.
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?
Go to step 7. Go to step 5.
Step 5
a Reseat the fusing pressure home sensor cable.
b Check the cable for damage, and replace if necessary.
Does the problem remain?
Go to step 6. The problem is solved.
Step 6
Replace the sensor (fusing pressure home).
Does the problem remain?
Go to step 7. The problem is solved.
Step 7
a Reseat the fuser cables.
b Check the cables for damage, and replace if necessary.
Does the problem remain?
Go to step 8. The problem is solved.
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 279.
Does the problem remain?
Go to step 9. The problem is solved.
7421
Diagnostic information
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