Nvm Read/Write Cannot Be Executed Failure; Cpu Power To Access Nvm Failure - Lexmark W850n Service Manual

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 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?

906.00 CPU power to access NVM 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?
Check
Check
Yes
Go to step 2. Perform several
print tests.
If the problem
remains, go to
step 2.
Replace the RIP Problem solved.
card assembly.
Go to "RIP card
assembly
removal" on
page 4-126.
Go to step 3.
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-119.
Yes
Go to step 2. Perform several
print tests.
If the problem
remains, go to
step 2.
Replace the RIP Problem solved.
card assembly.
Go to "RIP card
assembly
removal" on
page 4-126.
Go to step 3.
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-119.
Diagnostic information
4024-110
No
No
2-43