Lexmark C520 Series, Service Manual

Page: 119 / 259

Diagnostic information
2-61
5022- xxx
950.00 through 950.29 EPROM mismatch failure
Warning: When replacing any one of the following components:
•
Operator panel assembly
•
System card
•
Smart chip card
Only replace one component at a time. Replace the required component and perform a POR before
replacing a second component listed above. If this procedure is not followed the printer will be rendered
inoperable.
Warning: Never install and remove components listed above as a method of troubleshooting components.
Once a component has been installed in a printer, it can not be used in another printer. It must be
returned to the manufacturer.
This error code indicates a mismatch between the operator panel assembly and the smart chip card.
FRU Action
1 Smart chip card If the smart chip card has been recently replaced, go to step 3. If the
card has not been replaced go to step 2.
2 Operator panel assembly If the operator panel assembly has been recently replaced, go to step
4. If the operator panel assembly has not been replaced, contact your
next level of support.
3 Smart chip card Replace the current smart chip card with the original smart chip card.
Go to
“Smart chip card removal” on page 4-51 .
If the error remains, go to step 5.
4 Operator panel assembly Replace the current operator panel assembly with the original
operator panel assembly. Go to
“Operator panel assembly
removal” on page 4-22 .
If the error persists, go to step 6.
5 Smart chip card Replace the original smart chip card with a new and not previously
installed smart chip card. If the error remains, contact your next level
of support.
6 Operator panel assembly Replace the original operator panel assembly with a new and not
previously installed operator panel assembly. If the error remains,
contact your next level of support.