Action Yes No
Step 3
a Enter the Diagnostics menu, and then navigate to:
Printer diagnostics & adjustments > Sensor tests
b Find the sensor (MPF/pass‑through).
Does the sensor status change while toggling the sensor?
Contact the next
level of support.
Go to step 4.
Step 4
Check the sensor cable for proper connection and damage, and
replace if necessary.
Does the problem remain?
Go to step 5. The problem is
solved.
Step 5
a Check the isolation unit for damage, and replace if necessary.
See
“Isolation unit removal” on page 371.
b Perform a print job.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Motor (duplex/MPF) jam service check
Action Yes No
Step 1
Check if this is a duplex issue.
Is this a duplex issue?
Go to step 6. Go to step 2.
Step 2
Check the MPF tray for overfilling.
Is the tray overfilled?
Go to step 3. Go to step 4.
Step 3
Remove the excess paper from the tray.
Does the problem remain?
Go to step 4. The problem is
solved.
Step 4
Check the paper condition in the MPF tray.
Is the paper crumpled or damaged?
Go to step 5. Go to step 6.
Step 5
Replace the crumpled or damaged paper.
Does the problem remain?
Go to step 6. The problem is
solved.
5028
Diagnostic information
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