Action Yes No
Step 5
Check the lower interface cable. If damaged, then replace the lower
interface cable. See “Stapler lower interface cable removal” on
page 661.
Remove the left cover. Reseat the cable (J15) on the controller PCBA, then
POR the machine.
Does the error remain?
Go to step 6. The problem is solved.
Step 6
a Make sure the following components are properly installed:
• sensor (right tamper motor HP)
• sensor (left tamper motor HP)
• tamper motor (right)
• tamper motor (left)
b Check the tamper assembly components:
• Check if the tampers can be adjusted. Move the right and left
tampers to the middle, and then back to its original position.
• Check the tamper assembly mechanism and home position sensor
flags for damage.
c Reseat the tamper assembly connectors on the stapler controller
PCBA.
Are the tamper assembly components functional and free of damage?
Go to step 7. Replace the tamper
assembly. See “Tamper
assembly removal” on
page 654.
Step 7
Check the tamper drive belt.
Is it free of damage?
Go to step 8. Replace the tamper
drive belt. See “Tamper
drive belt removal” on
page 657.
Step 8
a Reseat the cable J11 on the controller PCBA. Reseat the same cable
on the sensor (right tamper motor HP) and sensor (left tamper motor
HP) end.
b Swap the sensor (left tamper motor HP) and sensor (right tamper
motor HP).
Does the same error occur?
Go to step 9. If a 453.75 or 453.76
error occurs, then
replace the sensor
(right tamper motor
HP). See “Sensor (right
tamper motor HP)
removal” on page
647.
Step 9
a Reseat the cable J4 on the controller PCBA, then reseat the same cable
on the tamper motor end.
b Swap the left and right tamper motors and take note of the error code.
Does the same error occur?
Go to step 10. If a 453.75 or 453.76
error occurs, then
replace the right
tamper motor. See
“Tamper motor (right)
removal” on page
656.
4063
Diagnostic information
162
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