Security Settings
D0CA/D0C9/D0C8/D0CB 2-44 SM
3. Press [System Settings].
4. Press [Settings for Administrator] > [Data Management] > [Auto Erase Memory
Setting].
5. From the list next to Auto Erase Memory Setting, select [On], and then select an erase
method.
The default erase method is [Random Numbers], and the default number of overwrites
is [3].
• NSA*1: Overwrites data twice with random numbers and once with zeros.
• DoD*2: Overwrites data with a random number, then with its complement, then
with another random number, and the data is verified.
• Random Numbers: Overwrites data multiple times with random numbers. Select
the number of overwrites from one to nine.
*1 National Security Agency (U.S.A)
*2 Department of Defense (U.S.A)
6. Press [OK].
7. Press [ ], and then log out of the machine.
If you enable both overwriting and data encryption, the overwriting data will also be
encrypted.
To check the overwriting process on the operation panel
When Auto Erase Memory is enabled, the Data Overwrite icon is displayed at the bottom right
of the operation panel screen to indicate the status of data that is not overwritten.
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