Epson AcuLaser C2900N Service Manual page 237

Chapter 2 Operation of Diagnostic
- NVM Settings
Under the [NVM Setting] menu, do not use [Edit NVM] and [Initialize Slave], because these operations
handle internal area.
Perform only the following menu operations.
-SaveNVM to ESS
Saves the internal data of PWBA MCU to PWBA ESS temporarily when PWBA MCU needs to
be replaced due to a trouble, etc.
-LoadNVM to ESS
Loads the internal data saved via [SaveNVM to ESS] to the new PWBA MCU.
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