Konica Minolta bizhub 223 bizhub 223/283/363/423 PKI Security Operations User - Page 36

2.7 Overwrite All Data Function 2 2.7 Overwrite All Data Function When access to the machine by the Administrator of the machine through the Administrator Settings is authenticated, the machine enables setting of the operation of the Overwrite All Data function. When the machine is to be discarded, or use of a leased machine is terminated at the end of the leasing contract, the Overwrite All Data function overwrites and erases all data saved in all spaces of the HDD. The function also resets all passwords saved in the NVRAM to factory settings, preventing leak of data. For details of items that are cleared by the Overwrite All Data function, see page 1-8. The HDD Overwrite Method offers the choice of eight different modes, [Mode 1] through [Mode 8]. Overwrite All Data takes about less than one hour in [Mode 1] at the minimum and about 9 hours in [Mode 8] at the maximum. Mode Mode 1 Mode 2 Mode 3 Mode 4 Mode 5 Mode 6 Mode 7 Mode 8 Description Overwrites once with 0x00. Overwrites with random numbers → random numbers → 0x00. Overwrites with 0x00 → 0xff → random numbers → verifies. Overwrites with random numbers → 0x00 → 0xff. Overwrites with 0x00 → 0xff → 0x00 → 0xff. Overwrites with 0x00 → 0xff → 0x00 → 0xff → 0x00 → 0xff → random numbers. Overwrites with 0x00 → 0xff → 0x00 → 0xff → 0x00 → 0xff → 0xaa. Overwrites with 0x00 → 0xff → 0x00 → 0xff → 0x00 → 0xff → 0xaa → verifies. Setting the Overwrite All Data function 0 Performing Overwrite All Data deletes the currently set External Server. Set the External Server again. For the procedure to set the External Server, see page 2-9. 0 Performing Overwrite All Data deletes the loadable driver installed in the machine, which calls for setting made by the Service Engineer. For details, contact your Service Representative. 0 For the procedure to call the HDD Settings screen on the display, see steps 1 and 2 of page 2-16. 0 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. 1 Call the HDD Settings screen on the display from the control panel. 2 Touch [Overwrite All Data]. bizhub 423/363/283/223 2-24