Lexmark X862de - NVM Data Failure; NVM Read;Write Cannot be Executed Failure

2-148 MFP Service Manual
7500-432, -632, and -832
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904.00 NVM data failure
905.00 NVM read/write cannot be executed failure
Step Check Yes No
1 Perform a POR.
Does the error occur when the power is turned off/on?
Go to step 2. Perform several
print tests.
If the problem
remains, go to
step 2.
2 Turn the printer off for 60 seconds.
Does the error occur when the power is turned off/on again?
Replace the
printer engine card
assembly.
Go to “Printer
engine card
assembly
removal” on
page 4-119.
Go to step 3.
Problem solved.
3 Perform a print test.
Does the error still occur?
Replace the RIP
card assembly.
Go to “RIP card
assembly
removal” on
page 4-130.
Problem solved.
Step Check Yes No
1 Perform a POR.
Does the error occur when the power is turned off/on?
Go to step 2. Perform several
print tests.
If the problem
remains, go to
step 2.
2 Turn the printer off for 60 seconds.
Does the error occur when the power is turned off/on again?
Replace the
printer engine card
assembly.
Go to “Printer
engine card
assembly
removal” on
page 4-119.
Go to step 3.
Problem solved.
3 Perform a print test.
Does the error still occur?
Replace the RIP
card assembly.
Go to “RIP card
assembly
removal” on
page 4-130.
Problem solved.