Action Yes No
Step 5
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 6. Replace the output
expander rear door.
See “Output expander
rear door removal” on
page 555.
Step 6
a Reseat the connector of the sensor (OE rear door interlock). To access
the sensor, see “Sensor (OE rear door interlock) removal” on
page 573.
b Reseat the same sensor cable J14 on the controller PCBA.
c POR the machine.
Does the error remain?
Replace the sensor (OE
rear door interlock).
See “Sensor (OE rear
door interlock)
removal” on page
573.
If the error persists,
then go to step 7.
The problem is solved.
Step 7
Open the left cover, reseat all connectors on the controller PCBA and then
POR the machine.
Does the error remain?
Replace the controller
PCBA. See “Output
expander controller
PCBA removal” on
page 562.
If the error persists,
then replace the
output expander
option. See “Output
expander controller
PCBA removal” on
page 562.
The problem is solved.
Output expander undetected service check
Action Yes No
Step 1
Is the output expander the only output option installed?
Go to step 4. Go to step 2.
Step 2
Check the lower interface cable. If damaged, then replace the lower
interface cable. See “Lower interface cable removal” on page 563.
Reseat the cable J1 on the controller PCBA, then POR the machine.
Does the error remain?
Go to step 3. The problem is solved.
Step 3
Check the auto connector end of the option below the expander.
Is it free of damage?
Go to step 4. Replace the upper
interface cable of the
output option under
the expander.
4063
Diagnostic information
315
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