Nvm Read/Write Cannot Be Executed Error; Marking Device Video Error - Lexmark C93x Service Manual

5057-XXX
904.07 CMY transfer roll retract motor time out
Step
1 Perform a POR.
Does the error occur when the power is turned off/on?
2
Replace the transfer belt unit assembly. Go to
belt unit assembly removal" on page
Does the error remain?

905.00 NVM read/write cannot be executed error

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 POR.
Does the error occur when the power is turned off/on?

905.01 Marking device video error

Step
1 Perform a POR.
Does the error occur when the power is turned off/on?
2-76
Printer Service Manual
Check
"Transfer
4-16.
Check
Check
Yes
Go to step 2. Perform several
print tests.
If the problem
remains, go to
step 2.
Replace the lower Problem solved.
printer engine card
assembly.
Go to "Lower
printer engine
card assembly
removal" on
page 4-82.
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.
"Upper
Go to
printer engine
card assembly
removal" on
page 4-79.
Go to step 3.
Replace the RIP Problem solved.
card assembly.
"RIP card
Go to
assembly
removal" on
page 4-75.
Yes
Replace the upper Problem solved.
printer engine card
assembly.
Go to "Upper
printer engine
card assembly
removal" on
page 4-79.
No
No
No