Action Yes No
Step 10
a Enter the Diagnostics menu, and then navigate to:
Printer diagnostics and adjustments > Sensor tests
b Find the sensor (Input).
Does the sensor status change while toggling the sensor?
Go to step 14. Go to step 11.
Step 11
a Remove the right cover. See “Right cover removal” on
page 420.
b Check the sensor cable J27 on the controller board for proper
connection.
Is the cable properly connected?
Go to step 13. Go to step 12.
Step 12
Reseat the cable.
Does the problem remain?
Go to step 13. The problem is
solved.
Step 13
Replace the sensor. See
“Sensor (input) removal” on page 440.
Does the problem remain?
Go to step 14. The problem is
solved.
Step 14
a Remove the left cover. See “Left cover removal” on page
409.
b Enter the Diagnostics menu, and then navigate to:
Printer diagnostics and adjustments > Motor tests
c Select the motor (Imaging unit), and then touch Start.
Does the motor run?
Go to step 17. Go to step 15.
Step 15
a Remove the right cover. See “Right cover removal” on
page 420.
b Reseat the motor cable J71 on the controller board.
Does the problem remain?
Go to step 16. The problem is
solved.
Step 16
Replace the motor. See
“Main motor drive removal” on page
410.
Does the problem remain?
Go to step 17. The problem is
solved.
4064
Diagnostics and troubleshooting
86
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