2
2
2-14
2-14
Technology > Controller System > Controls > Security Features (Encryption Key, Certificate, Password Protection)
Technology > Controller System > Controls > Security Features (Encryption Key, Certificate, Password Protection)
security information is not decodable correctly in case the HDD is failed or formatted because
the public key information stored in the HDD is cleared. If this occurs, execute “Initialize All
Data / Settings” in user mode to set the TPM setting to OFF. This will maintain the password
information in the SRAM even after the password information is initialized.
- When the TPM setting is OFF:
Common
Key
Password
HDD
Backup
Password
Backup of
Common Key
SRAM
When the TPM setting is OFF, the TPM key is disabled. Thus, the security information is
protected only by the common key.
Under this setting, the security information held in this machine is protected at the level
equivalent to the conventional machines.
The security functionality in this setting is configured by the common key and multiple
passwords stored in the SRAM and HDD.
When the TPM setting is set to OFF, the security information is protected by the common key
and multiple passwords stored in SRAM and HDD.
The common key information is stored in the HDD as well as the SRAM. The common
key stored in the SRAM is cleared when the main controller PCB 2 (SRAM) is replaced or
after MN-CON clear. Since the common key stored in the HDD will automatically restore
the common key in the SRAM, the security information is decodable correctly even after
servicing. Unlike the case that the TPM setting is set to ON, the password information stored
in the HDD is initialized when the HDD is replaced or formatted. However, the password
information is maintained in the SRAM.
TPM Setting for Security Information
The security information can be protected with or without TPM by switching between TPM
settings in Setting / Registration mode.
• When the TPM setting is ON
The security functionality is enabled in 4 levels (TPM key, public key, common key and
password).
• When the TPM setting is OFF
The security functionality is enabled in 2 levels (common key and password).
F-2-23
●
Preparation before Installing TPM
Before installing TPM, ask the user to back up data.
Follow the steps below to back up data.
1) From Remote UI, execute Setting / Registration > Management Setting > Data
Management > Import / Export. The following data types should be backed up.
• Address book (see *1)
• Device settings (transfer settings, address book, frequently-used Send functions) (see *2)
• Setting / Registration
• Printer settings can be exported
• Favorites stored in the web browser (only when the web browser is enabled) (see *3)
*1 Each of address books can be exported. If the address book is seen as a part of device
settings, this step can be disregarded.
*2 Among settings in the main menu, only “Frequently-used Setting” under “Scan and
Send” can be backed up.
*3 These are available only in the specific models or configurations.
2) Select “Export” from Custom Menu of the Remote UI to back up “Custom Menu Setting
Information”.
3) Log in to the system as Administrator from User Management of Advanced Box on Remote
UI. Then, execute “Export” to back up “User Information of Advanced Box”.