Action Yes No
Step 8
a Test the sensor.
Enter the Diagnostics menu, and then navigate to:
SENSOR TESTS > Staple Finisher Sensor Tests > Tamper home, front
b Move the tamper to the sensor.
Does the sensor status change while toggling the sensor?
Go to step 11. Go to step 9.
Step 9
Replace the sensor. See
“Staple finisher tamper sensors removal” on
page 239.
Does the problem remain?
Go to step 10. The problem is solved.
Step 10
a Remove the compiler assembly. See “Staple finisher tamper and
aligner assembly removal” on page 311.
b Make sure that the parts are properly installed.
c Check the parts for wear or damage, and replace if necessary. See
“Staple finisher—Compiler section 2” on page 549.
Does the problem remain?
Go to step 11. The problem is solved.
Step 11
a Reseat the interface cable on the staple finisher controller board and
printer controller board.
b Reseat the junction connector on the cable.
c Check the cable for damage, and replace if necessary. See “Staple
finisher interface cable removal” on page 245.
Does the problem remain?
Go to step 12. The problem is solved.
Step 12
a Reseat all the cables on the staple finisher controller board.
b Reset the printer.
Does the problem remain?
Go to step 13. The problem is solved.
Step 13
Replace the controller board. See
“Staple finisher controller board
removal” on page 244.
Does the problem remain?
Contact the next level
of support.
The problem is solved.
4021, 7421
Diagnostic information
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