91x.xx (910.xx‑919.xx) Engine software service check
Actions Yes No
Step 1
a Remove the controller board shield. See “Controller board
shield removal” on page 356.
b Check the cables on the controller board for proper
connection.
Are the cables properly connected?
Go to step 2. Go to step 3.
Step 2
Replace the controller board. See
“Controller board removal” on
page 357.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Step 3
Reconnect the cables, and then reset the printer.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
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:
Replace the required component, bring the printer up in Diagnostics mode, and then 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
Verify if the control panel has been replaced.
Has the control panel been replaced?
Go to step 2. Go to step 3.
Step 2
Replace the control panel with a new, and not previously installed,
UICC card. See
“Upper control panel removal” on page 280.
Does the problem remain?
Go to step 3. The problem is
solved.
Step 3
Verify if the controller board has been replaced.
Has the controller board been replaced?
Go to step 4. Go to step 5.
5028
Diagnostic information
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