Oki MC770 - Page 43

45584901TH Rev.1
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Oki Data CONFIDENTIAL
[C] Creating HDD partition (Format HDD)
 WhentheHDDisreplacedorUIdata,etc.aredownloadedusingtheUSBstorage,itis
necessarytoformatapartitionintheHDDbeforedownloading.Inthiscase,thepartitionis
created in the HDD with this function.
Notes:
• When downloadingwithadownloadjig, itis notnecessary toformata partitionin
advance.
• PerformtheHDDpartitionformattingonlywhenanewHDDisinstalledsincealldatain
the current HDD are erased by this operation.
[D] Formatting SRAM data (Clear SRAM)
 WhenSRAMisreplacedwithanewone,abnormalvaluesmaybewritteninthenewSRAM.
SRAM data must be formatted with this function for such case.
Notes:
• ThisfunctionisrequiredonlywhenanewSRAMisinstalled.
• Donot performthisfunctionincasesotherthantheinstallationofanew SRAM
because all data in the SRAM will be deleted with this function.
[E] Backing up/restoring encryption key and license (Key Backup Restore)
 WhentheSRAMboard(fortheCUboard)ortheCUboardisreplacedorinitialized,the
encryptionkeyandlicenseareerased.Therefore,theyneedtobebackeduporrestored
with this function.
 Congurationsandfunctionsofthe“5.KeyBackupRestore”menu.
1. KeySRAMtoFROM
Restore the encryption key from SRAM to FROM.
2. KeyFROMtoSRAM
Back up the encryption key from FROM to SRAM.
3. LicenseSRAMtoFROM
Restore the license from SRAM to FROM.
4. LicenseFROMtoSRAM
Back up the license from FROM to SRAM.
5. ADIKeySRAMtoFROM
 RestoretheADIKeyfromSRAMtoFROM.
6. ADIKeyFROMtoSRAM
 BackuptheADIKeyfromFROMtoSRAM.