Ricoh Pro C9100 Operating Instructions Manual page 59

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 starts after you have completed the control panel procedure and rebooted the machine
by turning the main power switch off and on. If both the Erase All Memory function and the
encryption function are specified, encryption starts after the data that is stored on the hard disk has
been overwritten and the machine has been rebooted by turning the main power switch on and off.
• If you use Erase All Memory and encryption simultaneously, and select overwrite 3 times for
"Random Numbers", the process will take up to 7 hours and 45 minutes. Re-encrypting from an
already encrypted state takes 7 hours and 15 minutes.
• The "Erase All Memory" function also clears the machine's security settings, so that neither machine
nor user administration will be possible. 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 data on the hard disk is formatted. Before you perform encryption, we
recommend you back up important data such as the Address Book.
1. Log in as the machine administrator from the control panel.
2. Press [System Settings].
3. Press [Administrator Tools].
4. Press [ Next] twice.
5. Press [Machine Data Encryption Settings].
Encrypting Data on the Machine
57