Action Yes No
Step 3
a Remove the rear cover.
b Bypass the front door switch.
c Test the motor (SHPF elevator bin stack height).
Enter the Diagnostics menu, and then navigate to:
Motor Tests > Staple and Hole Punch Finisher >
Elevaotr bin stack height
d Check if the elevator bin stack height fingers are properly moving.
Are they properly moving?
Go to step 5. Go to step 4.
Step 4
a Reseat the cable on the motor.
b Make sure that the motor is properly installed.
c Check the motor and cable for damage, and replace if necessary. See
“Motor (SHPF elevator bin stack height) removal” on page 353.
Does the problem remain?
Go to step 5. The problem is solved.
Step 5
a Make sure that the sensor (SHPF elevator bin stack height actuator
arm control) is properly installed.
b Make sure that the sensor is free of debris or dust.
c Reseat the cable on the sensor. Check the cable for damage, and
replace if necessary.
d Check the sensor for damage.
Is the sensor free of damage?
Go to step 6. Go to step 7.
Step 6
a Test the sensor.
Enter the Diagnostics menu, and then navigate to:
SENSOR TESTS > Staple and Hole Punch Finisher Sensor Test >
Main bin full
b Toggle the sensor.
Does the sensor status change while toggling the sensor?
Go to step 8. Go to step 7.
Step 7
Replace the sensor. See
“SHPF upper left cover sensors removal” on
page 349.
Does the problem remain?
Go to step 8. The problem is solved.
4021, 7421
Diagnostic information
138
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