Konica Minolta BIZHUB 223 - Manual (Page 73)

bizhub 423/363/283/223 2-58
2.13 Overwrite All Data Function 2
2.13 Overwrite All Data Function
When access to the machine by the Administrator of the machine through the Administrator Settings from
the control panel 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 con-
tract, the Overwrite All Data function overwrites and erases all data stored in all spaces of the HDD. The func-
tion 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 1-10.
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.
Setting the Overwrite All Data function
0 For the procedure to call the HDD Settings screen on the display, see steps 1 and 2 of page 2-50.
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].
Mode Description
Mode 1 Overwrites once with 0x00.
Mode 2 Overwrites with random numbers → random numbers → 0x00.
Mode 3 Overwrites with 0x00 → 0xff → random numbers → verifies.
Mode 4 Overwrites with random numbers → 0x00 → 0xff.
Mode 5 Overwrites with 0x00 → 0xff → 0x00 → 0xff.
Mode 6 Overwrites with 0x00 → 0xff → 0x00 → 0xff → 0x00 → 0xff → random numbers.
Mode 7 Overwrites with 0x00 → 0xff → 0x00 → 0xff → 0x00 → 0xff → 0xaa.
Mode 8 Overwrites with 0x00 → 0xff → 0x00 → 0xff → 0x00 → 0xff → 0xaa → verifies.