Canon imageRUNNER ADVANCE C2030 Service Manual page 63

2
Process/Operation > Main Controller > Security > HDD Encryption Kit (Optional)
■ HDD Encryption Kit (Optional)
This option enables to generate the encryption key inside the encryption board and to
encrypt the whole HDD including the system software. Performing encryption can protect the
temporary image data generated at copying or printing, the registration information of the
Address Book and the password information from leakage of confidential information by theft
of the HDD.
Mirroring function is built in the HDD Encryption Kit - C3, however, the HDD for mirroring
cannot be installed with the imageRUNNER ADVANCE C2030/C2025/C2020 series. Since
mirroring is not available, the following explains the encryption function of the HDD.
Caution:
There is no need to reinstall the system in the case of installing the HDD Encryption Kit.
This is because the system is not deleted but stored in the flash memory.
● HDD encryption function
Temporary image data such as scanned image or PDL data is written in the HDD of the host
machine on an as-needed basis. In normal operation, only the management information
is deleted after printing is complete or the file is deleted; therefore, the image or the user
file information remain in the HDD as they are (without modification). In this case, HDD
encryption function prevents an original image being restored from pulling out the HDD and
analyzing in disk editor.
● Data encryption mechanism
The encryption board receives signals transmitted from the controller board, and encrypts
and saves them in the HDD.
The encryption board receives the encrypted data saved in the HDD to decode and send
them to the controller.
● Conditions for Encryption Board operation
The encryption board has the function to recognize and authenticate the host machine. An
error is triggered if a second-hand HDD encryption/ mirroring board is installed to the other
machine.
2 Process/Operation > Main Controller > Security > HDD Encryption Kit (Optional)
● Compatibility among Device, Encryption Board and HDD
E602-2000 error may occur if the unmatched authentication information is found between the
controller and the HDD encryption board and the encryption board is mounted.The device,
the encryption board and HDD can be connected in 4 use cases.
The following shows the statuses for each use case.
Case 1: Normally operated
Case 2: HDD-related error occurs because the system on the HDD cannot be read (other
than E602-2000 error)
Case 3: E602-2000 is triggered by failure in mutual authentication
Case 4: Unable to decode properly due to unmatched key for the encryption board
Correct
Correct
encryption
controller
board
two-way authentication
Correct Correct HDD
controller
(Protection property)
It is not possible to decode.
Correct
Controller
encryption
not authorized
board
It is not possible two-way authentication
Encryption board
not authorized
● Actions against Troubles - Overview
Servicing User data
HDD replacement cleared Replace HDDs
Encryption board cleared Install HDD encryption
replacement Kit
Main controller 2 cleared Clear the key for HDD
replacement (SRAM) data encryption kit
Main controller 1 not cleared N/A
replacement
Encryption
Correct HDD
(Protection property)
Encryption
Correct HDD
(Protection property)
Correct HDD
(Protection property)
It is not possible to decode.
F-2-42
Recovery Action
1) Format the HDD
1) Replace encryption board
2) Initialize Encryption Board
3) Format the HDD
1) Initialize the encryption board
2) Format the HDD
N/A
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