Action Yes No
Step 5
Reseat the connector J13 on the controller board, and then POR the
machine.
Does the error remain?
Go to step 6. The problem is solved.
Step 6
Open the rear door, and check:
• if the rear door opens and closes properly
• the rollers for damage
Are the rear door components functional and free of damage?
Go to step 7. Replace the rear door.
See “Stapler/offset
stacker rear door
removal” on page
724.
Step 7
Check the drive gear assembly mechanism:
• Remove the finisher option from the printer. From the bottom of the
option, turn the lowermost drive gear clockwise. Make sure the rollers
engaged to the lowermost gear will also turn.
• Check the drive gear assembly for damage.
Is the drive gear assembly functional and free of damage?
Go to step 8. Replace the stapler
drive gear assembly.
See
“Stapler/offset
stacker drive gear
assembly removal” on
page 761.
Step 8
Check the main motor connections. Reseat the motor cable J3 on the
controller board.
Does the error remain?
Go to step 9. The problem is solved.
Step 9
Remove the three screws securing the main motor. POR the machine and
check if the main motor runs.
Does the main motor run?
Go to step 11. Go to step 10.
Step 10
Do a feed test. Enter Diagnostics Menu and navigate to:
FINISHER TESTS > Feed test
Does the main motor run?
Go to step 11. Replace the stapler
main motor. See
“Stapler/offset stacker
main motor removal”
on page 757.
Step 11
Open the top cover, check the left media stack flap:
• Check for damage.
• Check if it is not dislodged from its original position.
• Check if it has no problem moving when manually actuated.
Is the component functional and free of damage?
Go to step 12. Replace the left media
stack flap. See
“Media
stack flap (left)
removal” on page
738.
7463
Diagnostic information
178
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