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Actions
Step 6
Clear the NVRAM of the printer:
a
Turn the printer off.
b
With the printer off, press and hold buttons 6, 7, and 8 on the
keypad.
c
Turn the printer on.
d
When Restoring Factory Defaults appears, release
the buttons.
Note: If the printer looks up on the Restoring Factory Defaults,
then wait two minutes, and then turn the printer off. After ten
seconds or more, turn the printer back on without holding down
any buttons.
Does the problem remain?
Step 7
Replace the control panel. See
page
317.
Does the problem remain?
Step 8
Replace the controller board. See
page
393.
Does the problem remain?
Invalid firmware/controller board service check
Action
Step 1
Update the firmware.
Note: Contact the next level of support for the correct firmware
level.
Does the problem remain?
Step 2
Replace the controller board. See
page
393.
Does the problem remain?
"Upper control panel removal" on
"Controller board removal" on
"Controller board removal" on
Diagnostics and troubleshooting
245
Yes
Go to step 7.
Go to step 8.
Contact the next
level of support.
Yes
Go to step 2.
Contact the next
level of support.
5028
No
The problem is
solved.
The problem is
solved.
The problem is
solved.
No
The problem is
solved.
The problem is
solved.
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