• The machine cannot be operated while data is being encrypted.
•
Once the encryption process begins, it cannot be stopped. Make sure that the machine's main
power is not turned off while the encryption process is in progress. If the machine's main power is
turned off while the encryption process is in progress, the hard disk will be damaged and all data
on it will be unusable.
• The encryption key is required for data recovery if the machine malfunctions. Be sure to store the
encryption key safely for retrieving backup data.
• Encryption begins after you have completed the control panel procedure and rebooted the
machine by turning off and on the main power switch. If there is unencrypted data on the hard disk
that must be both transferred and encrypted, rebooting will take up to seven hours. If there is
encrypted data on the hard disk that must be re-encrypted, rebooting will also take up to seven
hours. If both the erase-by-overwrite function and the encryption function are specified, encryption
begins after the data that is stored on the hard disk has been overwritten and the machine has been
rebooted with the turning off and on of the main power switch.
• If you want to specify encryption of unencrypted data with erase-by-overwrite, select [Random
Numbers] as the overwrite method, and set the number of overwrites to "3". The entire process will
take up to ten hours. If you specify re-encryption of encrypted data, the entire process will also take
up to ten hours.
• The "Erase All Memory" function also clears the machine's security settings, with the result that
afterward, neither machine nor user administration will be effective. Ensure that users do not save
any data on the machine after "Erase All Memory" has completed.
• Rebooting will be faster if there is no data to carry over to the hard disk and if encryption is set to
[Format All Data], even if all the data on the hard disk is formatted. Before you perform encryption,
we recommend you back up important data such as the Address Book and all data stored in
Document Server.
• If the encryption key update was not completed, the printed encryption key will not be valid.
1. Press the [User Tools/Counter] key.
2. Press [System Settings].
3. Press [Administrator Tools].
4. Press [Machine Data Encryption Settings].
If this item is not visible, press [
Next] to display more settings.
Encrypting Data on the Hard Disk
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