Konica Minolta bizhub C550 - Manual (Page 336)

Specifying Utility mode parameters 7
C550 7-39
2
Reminder
When the machine is turned off, then on again with the main power
switch, wait at least 10 seconds to turn on the machine after turning it off;
otherwise, the machine may not function correctly.
In order to enable the setting specified in the Overwrite Temporary Data
screen, “Overwrite Temporary Data” must be set to “Yes”.
Overwrite All Data
The machine can be set to overwrite all data on the hard disk.
The methods for overwriting data are described below.
2
Reminder
Perform this operation before disposing of the machine. Before perform-
ing this operation, be sure to consult with your service representative.
2
Note
The operation for Mode 1 takes approximately 40 minutes.
1
Touch [Security Settings] in the Administrator Settings screen.
Setting Description
Mode 1 Overwritten with 0x00
Mode 2 Overwritten with random 1-byte numbers → Overwritten with random 1-
byte numbers → Overwritten with 0x00
Mode 3 Overwritten with 0x00 → Overwritten with 0xff → Overwritten with random
1-byte numbers → Verified
Mode 4 Overwritten with random 1-byte numbers → Overwritten with 0x00 → Over-
written with 0xff
Mode 5 Overwritten with 0x00 → Overwritten with 0xff → Overwritten with 0x00 →
Overwritten with 0xff
Mode 6 Overwritten with 0x00 → Overwritten with 0xff → Overwritten with 0x00 →
Overwritten with 0xff → Overwritten with 0x00 → Overwritten with 0xff →
Overwritten with random number
Mode 7 Overwritten with 0x00 → Overwritten with 0xff → Overwritten with 0x00 →
Overwritten with 0xff → Overwritten with 0x00 → Overwritten with 0xff →
Overwritten with 0xaa
Mode 8 Overwritten with 0x00 → Overwritten with 0xff → Overwritten with 0x00 →
Overwritten with 0xff → Overwritten with 0x00 → Overwritten with 0xff →
Overwritten with 0xaa → Verified