6. Tap Start Backup.
Writing to the USB memory starts. If an encryption key has already been stored in the USB memory, it is
overwritten.
7. When a backup completion message is displayed, tap Close.
8. Press the
P
button to turn o the printer.
9.
Press the
P
button to turn on the printer again.
e password is encrypted.
e printer may take longer to start than usual.
Restoring the Password Encryption Key
If the TPM chip fails, you can restore the encryption key to the replaced TPM chip by using its backup. Follow the
steps below to replace the TPM chip while the password is encrypted.
1. Press the
P
button to turn on the printer.
e
printer's control panel displays a message that the TPM has been replaced.
2. Select Restore from Backup.
When the administrator password has been set, enter the password and tap OK.
3. Connect the USB memory that contains the encryption key to the printer's external interface USB port.
4. Tap Restore from Backup.
e encryption key is restored to the TPM chip.
5.
Check the message, and then tap OK.
e printer restarts.
SSL/TLS Communication with the Printer
When the server certicate is set using SSL/TLS (Secure Sockets Layer/Transport Layer Security) communication
to the printer, you can encrypt the communication path between computers. Do this if you want to prevent remote
and unauthorized access.
About Digital Certication
❏ CA-signed Certicate
is is a certicate signed by the CA (Certicate Authority.) You can obtain it to apply to the Certicate
Authority.
is
certicate
certies
the existence of the printer is and used for SSL/TLS communication so that
you can ensure the safety of data communication.
When it is used for SSL/TLS communication, it is used as a server
certicate.
When it is set to IPsec/IP Filtering or IEEE802.1x communication, it is used as a client
certicate.
Administrator's Guide
Advanced Security Settings for Enterprise
79
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