Nvm Data Failure; Nvm Read/Write Cannot Be Executed Failure - Lexmark X850e Service Manual

7500-XXX
Step
2 Turn the printer off for 60 seconds.
Does the error occur when the power is turned off/on again?
3 Perform a print test.
Does the error still occur?

904.00 NVM data failure

Step
1 Perform a POR.
Does the error occur when the power is turned off/on?
2 Turn the printer off for 60 seconds.
Does the error occur when the power is turned off/on again?
3 Perform a print test.
Does the error still occur?

905.00 NVM read/write cannot be executed failure

Step
1 Perform a POR.
Does the error occur when the power is turned off/on?
2-150
MFP Service Manual
Check
Check
Check
Yes
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-117.
Go to step 3.
Replace the RIP Problem solved.
card assembly.
"RIP card
Go to
assembly
removal" on
page 4-128.
Yes
Go to step 2. Perform several
print tests.
If the problem
remains, go to
step 2.
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-117.
Go to step 3.
Replace the RIP Problem solved.
card assembly.
Go to "RIP card
assembly
removal" on
page 4-128.
Yes
Go to step 2. Perform several
print tests.
If the problem
remains, go to
step 2.
No
No
No