Kyocera TASKalfa 6501i Data Security Kit (E) Operation Guide Rev-4 2013.1 - Page 3
Security Kit Functions, Overwriting, Encryption, Instructions for General Users
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Instructions for General Users (for Both General Users and Administrators) Security Kit Functions The security kit enables overwriting and encryption. NOTE: If you install the security kit, Running security function... appears when the machine starts up and it may take a while. Overwriting Multi-functional products (MFPs) temporarily store the data of scanned originals and print jobs, as well as other data stored by users, in the hard disk, and the data is output from the hard disk for printing. As the data storage area used for such data remains in the hard disk as is until it is overwritten by other data, the data stored here remains restorable using special tools for undesirable use. The security kit deletes and overwrites (hereinafter collectively referred to as overwrite(s)) the unnecessary data storage area used for the output data or deleted data to ensure that data cannot be restored. Overwriting is performed automatically, without user intervention. CAUTION: When you cancel a job, the machine immediately starts overwriting the data that has been already stored in the hard disk. Overwrite Methods There are two overwrite methods, which can be switched at any time. Once Overwrite Method Overwrite a target storage area of the hard disk (for overwriting) or entire hard disk (for system initialization) with zeroes to disable data restoration. 3-time Overwrite (DoD) Method (default) This overwrite method complies with U.S. Department of Defense (DoD) standards, and overwrites unneeded data areas of the hard disk (in the case of overwriting) or all areas (in the case of system initialization) with specific characters, their complements, and random characters to prevent data restoration. Data restoration is not possible even when sophisticated restoration techniques are used, and a higher level of security than Once Overwrite is obtained. This method may take more time than Once Overwrite method to process a larger amount of data. Encryption MFPs store the data of scanned originals and other data stored by users in the hard disk. It means the data could be possibly leaked or tampered with if the hard disk is stolen. The security kit encrypts data before storing it in the hard disk. It guarantees higher security because no data cannot be decoded by ordinary output or operations. Encryption is automatically performed and no special procedure is required. CAUTION: Encryption helps enhance security. However, the data stored in the Document Box can be decoded by ordinary operations. Do not store any strictly confidential data in the Document Box. 2