2-54 Service Manual
4500–E220/E321/E323
NVRAM failure
Indicates a problem in the NVRAM. Replace the operator panel
assembly.
Note: NVRAM is on the operator panel printed circuit board (PCB)
while secure NVRAM is on the controller PCB. Check margin
alignments after replacing the operator panel assembly. See
“Printhead assembly ” on page 4-2 (steps 1 through 11) for
more information. If margin errors are unacceptable,
corrections can only be made through software. Contact the
next level of support or Lexmark at 1–800–539–6275.
Ready/Data
Press Continue
Toner Low
Load/
Remove Paper
Paper Jam
Error
Ready/Data
Press Continue
Toner Low
Load/
Remove Paper
Paper Jam
Error
Primary Code Secondary Code
Tertiary Codes
Ready/Data
Press Continue
Toner Low
Load/
Remove Paper
Paper Jam
Error
NVRAM CRC failure (954).
NVRAM chip failure (952).
RIP firmware cannot communicate with
secure NVRAM (951).
NVRAM data does not match secure NVRAM (950).
To Next Page
Loading...
