Action Yes No
Step 4
Check the lower interface cable. If damaged, then replace the lower
interface cable. See “HCOE lower interface cable removal” on page
593.
Remove the left cover. Reseat the cable J1 on the controller PCBA, then
POR the machine.
Does the error remain?
Go to step 5. The problem is solved.
Step 5
Check the auto connector end of the printer underneath the option.
Is it free of damage or obstructions?
Go to step 6. Replace the upper
interface cable of the
base printer.
Step 6
Open the left cover. Reseat the main motor cable J4 on the controller
PCBA.
Does the error remain?
Go to step 7. The problem is solved.
Step 7
Note: The sensor (HCOE rear door interlock) should be disabled by
blocking the sensor.
Open the rear door. Do a feed test. Enter Diagnostics menu, and then
navigate to:
OUTPUT BIN TESTS > Feed to All Bins
Check if the transport rollers rotate when the test is performed.
Does the main motor make the transport rollers rotate?
Go to step 8. Replace the HCOE main
motor. See “HCOE
main motor removal”
on page 607.
Step 8
Check the drive gear for damage. Turn the gear and check if it has no
problem moving.
Note: To access the drive gear, see “HCOE main drive gear assembly
removal” on page 605.
Is the drive gear functional and free of damage?
Go to step 9. Replace the HCOE drive
gear. See “HCOE main
drive gear assembly
removal” on page
605.
Step 9
Check the following:
• Check the rear door for damage. Open the rear door, and then check
if it closes properly.
• Check the rear door rollers for damage. Turn the rear door rollers and
check if they have no problem moving.
Are the rear door components functional and free of damage?
Go to step 10. Replace the HCOE rear
door. See “HCOE rear
door removal” on
page 585.
4063
Diagnostic information
157
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