Ricoh M281 Series Service Manual page 179

3. From [User Administrator Authentication], [Machine Administrator Authentication],
[Network Administrator Authentication], and [File Administrator Authentication], set the
administrator authentication setting to [On].
If this setting is off, tell the customer that this setting must be on before you do the installation
procedure.
Enable Encryption Setting
Machine Data Encryption Settings can be enabled by the following procedure.

When setting up encryption, specify whether to start encryption after deleting data
(initialize) or encrypt and retain existing data. If data is retained, it may take some time to
encrypt it.

When the Machine Data Encryption Settings is enabled;

If the HDD is replaced, HDD data will be deleted. After installing the new HDD, the
data in the new HDD will be automatically encrypted.

If the NVRAMs on the controller board are replaced, Machine Data Encryption
Settings will be automatically enabled after installing the new NVRAMs.

If the controller board is replaced, the restore key will be required after installing the
new controller board.

If you have the restore key, you will be able to continue using the HDD data.

If the restore key has been lost, the HDD will be formatted and you need to reset
NVRAM data to the default settings after the forced start-up. (HDD data will be
deleted) Refer to "How to do a forced start up with no encryption key" in "Encryption
Key Restoration" (page 2-152).

If the controller board and the NVRAMs are replaced together, HDD data will be
deleted since all the encryption information is deleted.
1. Turn ON the main power.
2. Log in as the machine administrator from the control panel.
3. Select [Security Options] -> Press [OK]
4. Select [Machine Data Encryption] -> Press [OK]
5. Make sure [Encrypt] is displayed on the control panel -> Press [OK]
6. Select the data to be carried over to the hard disk and not be reset -> Press [OK]

To carry all of the data over to the hard disk, select [Carry Over All Data].

To carry over only the printer settings data, select [CarryOver FileSys DataOnly].

To reset all of the data, select [Format All Data].
7. Select [PrtOnPpr] -> [Print] -> [Continue]
8. Select [OK].
9. Press [Menu].
SM 2-151
Security Setting
D255/D256/M281/M282