Encrypting Data on the Machine
- Keep SD cards and USB flash memory devices out of reach of children. If a child accidentally swallows an SD card or USB flash memory device, consult a doctor immediately.
Even if the memory device or hard disk (when the optional hard disk is installed) is stolen, data leakage can be prevented by encrypting the data on the machine, such as Address Book, authentication data, and files. When the optional hard disk is not installed, the data stored in the machine's NVRAM is encrypted. When the optional hard disk is installed, the documents stored on the hard disk are also encrypted.
Once encryption is enabled, all data subsequently stored on the machine will be encrypted.
You can also choose to encrypt or delete the data currently stored on the machine.
The encryption algorithm is AES-256.
Data that is encrypted
This function encrypts data that is stored in the machine's NVRAM (memory that remains even after the machine is turned off) and on the hard disk (when the optional hard disk is installed).
The following data is encrypted:
Address Book data
User authentication information
Temporary stored documents
Logs
Network I/F setting information
System settings information
Type of encryption
Specify whether to encrypt existing data and keep it on the machine or delete (initialize) it. Encryption takes time if a large amount of data is to be kept. The NVRAM data will not be deleted (initialized).
Setting | Data to be kept | Data to be initialized | Required time |
|---|---|---|---|
CarryOver FileSys DataOnly |
|
| 1 hour and 45 minutes |
Carry Over All Data | All Data: Both the data to be kept and not to be kept when [CarryOver FileSys DataOnly] is specified. | None | 3 hours |
Format All Data | None | All Data: Both the data to be kept and not to be kept when [CarryOver FileSys DataOnly] is specified. | Several minutes |
Notes for enabling encryption settings
If you use Embedded Software Architecture application or App2Me, be sure to specify [CarryOver FileSys DataOnly] or [Carry Over All Data].
Note that the machine's settings will not be initialized to their system defaults even if [Format All Data], [CarryOver FileSys DataOnly], or [Carry Over All Data] is specified.
Restoring data
To transfer data to a new machine, restore the encrypted data. For details, ask the service representative.
The encryption key used for data encryption is required to restore the data.
You can specify whether to print the encryption key or store it on an SD card.
You can change the encryption key later.