Action Yes No
Step 12
Reinstall or replace the motor. See
“Motor (duplex/MPF) removal”
on page 369.
Does the problem remain?
Go to step 13. The problem is
solved.
Step 13
a Enter the Diagnostics menu, and then navigate to:
Additional input tray diagnostics > Sensor tests
b Find the sensor (Pass-through (tray [x])).
Does the sensor status change while toggling the sensor?
Go to step 16. Go to step 14.
Step 14
Reseat the sensor cable, and then check the sensor for
misalignment and damage.
Is the sensor properly installed and free of damage?
Go to step 16. Go to step 15.
Step 15
Reinstall or replace the sensor. See
“Sensor (550-sheet tray pass-
through) removal” on page 448.
Does the problem remain?
Go to step 16. The problem is
solved.
Step 16
a Enter the Diagnostics menu, and then navigate to:
Additional input tray diagnostics > Motor tests
b Find the motor (Pass-through (tray [x])), and then touch Start.
Does the motor run?
Go to step 19. Go to step 17.
Step 17
Reseat the motor cable, and then check the motor for misalignment
and damage.
Is the motor properly installed and free of damage?
Go to step 19. Go to step 18.
Step 18
Reinstall or replace the motor. See
“Motor (550-sheet tray
pass‑through) removal” on page 445.
Does the problem remain?
Go to step 19. The problem is
solved.
Step 19
Perform a print test.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
7528
Diagnostic information
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