Action Yes No
Step 5
a Make sure that the trifold gate actuator is properly installed.
b Check the actuator for damage, and replace if necessary. See “Trifold
gate actuator removal” on page 490.
Does the problem remain?
Go to step 6. The problem is solved.
Step 6
a Make sure that the sensor (trifold guide home) 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, and replace if necessary. See See
“Sensor (trifold guide home) removal” on page 490.
Is the sensor free of damage?
Go to step 7. Go to step 8.
Step 7
Replace the sensor. See
“Sensor (trifold guide home) removal” on
page 490.
Does the problem remain?
Go to step 8. The problem is solved.
Step 8
a Make sure that the trifold diverter is properly installed.
b Check the diverter for damage, and replace if necessary. See “Trifold
diverter removal” on page 514.
Does the problem remain?
Go to step 9. The problem is solved.
Step 9
a Reseat the cables J8 and J9 on the booklet maker controller board.
b If applicable, reseat the junction connectors on the cables.
c Make sure that the cables do not block the path of moving parts.
d Check the cables for damage, and replace if necessary.
Does the problem remain?
Go to step 10. The problem is solved.
Step 10
a Reseat the interface cable on the booklet maker controller board and
SHPF controller board.
b Reseat the junction connector on the cable.
c Check the cable for damage, and replace if necessary.
Does the problem remain?
Go to step 11. The problem is solved.
4021, 7421
Diagnostic information
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