Konica Minolta BIZHUB C253 - Manual (Page 71)

C253/C203 2-56
Administrator Operations 2
2.11 Protecting Data in the HDD
When access to the Administrator of the machine by the Administrator Settings is authenticated, the machine
enables the operation for setting and changing the HDD Lock Password. It also enables the operation for
setting and changing the Encryption Key when the optional Security Kit SC-503 is mounted.
Should the HDD be removed unawares, the HDD Lock Password locks the HDD protecting data contained
in the HDD. Furthermore, by setting the Encryption Key, the data stored in the HDD is encrypted, thereby
protecting the data in the HDD. The HDD Lock Password and Encryption Key entered are displayed as "*."
To protect data in the HDD, be sure to set the HDD Lock Password or Encryption Key.
2
Note
Do not set any number that can easily be guessed from birthdays, employee identification numbers,
and the like for the HDD Lock Password and Encryption Key. Try to change the password at regular
intervals.
Make sure that nobody but the Administrator of the machine comes to know the HDD Lock Password
or Encryption Key.
If only the Encryption Key is to be set while the machine is being used without setting the HDD Lock
Password or Encryption Key, the Service Engineer must perform some setting procedures in advance.
For more details, ask the Service Representative.
2
Reminder
When the HDD Lock Password is set, HDD verification is carried out when the machine is started. If the
HDD has been improperly replaced with another, or if the HDD Lock Password is yet to be set, a
message appears that tells that there is a mismatch between the HDD and the HDD Lock Password.
Further, the HDD has the following function. That is, if the HDD is illegally removed or replaced with
another, detection of a wrong HDD Lock Password five consecutive times will lock the authentication
function. Leak of data can thus be prevented.
When an Encryption Key (encryption word) is set using HDD Encryption Setting, an Encryption Key with
a key length of 128 bits is generated using the SHA-1 algorithm. The generated encryption key is used
to encrypt or decrypt data through AES encryption algorithm.
When the Encryption Key (encryption word) is set with the optional Security Kit SC-503 mounted on the
machine, the encryption strength can be selected from among [Encryption Priority] or [Overwrite
Priority]. For more details, see
"Setting the Encryption Key (encryption word)" on page 2-62 ".
2.11.1 Setting the HDD Lock Password
2
Note
When the main power switch is turned off, then on again, wait at least 10 seconds to turn it on after
turning it off. if there is no wait period between turning the main power switch off, then on again, the
machine may not function properly.
Here is the sequence, through which the main power switch and sub power switch are turned on and
off:
Turn off the sub power switch
→ Turn off the main power switch → Turn on the main power switch →
Turn on the sub power switch
Do not leave the machine with the setting screen of Administrator Settings left shown on the display. If
it is absolutely necessary to leave the machine, be sure first to log off from the Administrator Settings.