Diagnostic information 2-47
5041-030
950.00–950.29—EPROM mismatch failure
Warning: When replacing any of the following components, replace only one component at a time or the printer
will be rendered inoperable:
• System board
• Flatbed scanner assembly
• Scanner interface card
Replace the required component, bring the printer up in Diagnostics mode (see “Diagnostics mode” on
page 3-14), and verify that the problem is fixed before performing a POR.
This error code indicates a mismatch between the operator panel assembly and the system board.
Step Questions / actions Yes No
1 Has the OP panel UICC card been replaced
recently?
Replace the operator panel
assembly with a new, and
not previously installed,
UICC card. See “UICC
card removal” on
page 4-9.
Go to step 2.
2
Has the system board been replaced
recently?
Replace the system board
with a new, and not
previously installed, system
board. See “RIP board
removal” on page 4-46.
Go to step 3.
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.
4
Clear the NVRAM of the printer:
1. Turn the printer power off.
2. With the printer off, press and hold 6, 7
and 8 on the keypad.
3. Turn the printer on.
4. When Restoring Factory Defaults
appears, release the buttons.
Note: If the printer locks up on the
Restoring Factory Defaults, 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.
5
Replace the OP panel UICC card. See “UICC
card removal” on page 4-9.
Does the error message still appear?
Replace the system board.
See “RIP board removal”
on page 4-46.
Problem solved.
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