950.xx NVRAM failure service check
Warning—Potential Damage: When replacing any of the following components, replace only one component at a
time or the printer will be rendered inoperable:
For CX310 models:
• Controller board
• Operator panel with UICC card
For CX410 and CX510 models:
• Controller board
• UICC card
Replace the required component, bring the printer up in Diagnostics mode (See “Diagnostics menu” on page 161),
and verify that the problem is fixed before performing a POR.
This error indicates a mismatch between the operator panel assembly and the system board.
Actions Yes No
Step 1
For CX310 models, has the operator panel with UICC card been replaced
recently?
For CX410 and CX510 models, has the UICC card been replaced recently?
Replace the operator
panel assembly with a
new, and not
previously installed,
UICC card.
Go to step 2.
Step 2
Has the controller board been replaced recently?
Replace the controller
board with a new, and
not previously
installed, controller
board. See “Controller
board removal” on
page 239.
Go to step 3.
Step 3
Turn the printer power off for ten or more seconds. Then, turn the printer
back on (POR the printer).
Is the error gone, and can the printer print?
Problem solved. Go to step 4.
Step 4
Clear the NVRAM of the printer:
a Turn the printer power off.
b With the printer off, press and hold 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 power off. After ten
seconds or more, turn the printer power back on without holding down
any buttons.
Does the error message still appear?
Go to step 5. Problem solved.
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Diagnostic information
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