Konica Minolta bizhub 751 - Manual (Page 188)

751/601 8-20
User box setting 8
Overwrite Temporary Data
This function enables specification of the overwrite method for deleting the existing data on the hard disk.
This machine destroys data by overwriting all data in the entire area where an image was stored when that
image data on the hard disk is considered unnecessary. In addition, destroying the structure of data other
than image data prevents the disclosure of the data in case the hard disk installed is stolen.
The following items can be specified. (Default setting: Mode 1)
Overwrite All Data
This operation deletes all data on the hard disk by overwriting. To overwrite the data, select the delete
method, and then touch [Delete]. Overwriting is performed after the machine is restarted.
2
Reminder
Perform this operation before disposing of the machine. Before performing this operation, be sure to
consult with your service representative.
While the data is being overwritten, do not use the main power switch to turn the machine off and on.
The overwite method operates as follows:
Item Description
Mode 1 Overwritten with 0x00
Mode 2 Overwritten with 0x00 → Overwritten with 0xff → Overwritten with the letter [A]
(0x61) → Verified
Item Description
Mode 1 Overwritten with 0x00.
!
Detail
Mode 1 operation takes about 40 minutes.
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. → Verifies.