To Overwrite All Data - Oce cm4520 User Manual

Control Panel Settings

To overwrite all data

The machine can be set to overwrite all data on the hard disk.
With this procedure, all information on this machine is erased.
Before performing this operation, be sure to consult with your service repre-
sentative.
The methods for overwriting data are described below.
Setting
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
Mode 6
Mode 7
Mode 8
cm4520
Description
Overwritten with 0x00
Overwritten with random 1-byte numbers → Overwritten with random 1-byte
numbers → Overwritten with 0x00
Overwritten with 0x00 → Overwritten with 0xff → Overwritten with random 1-
byte numbers → Verified
Overwritten with random 1-byte numbers → Overwritten with 0x00 → Over-
written with 0xff
Overwritten with 0x00 → Overwritten with 0xff → Overwritten with 0x00 →
Overwritten with 0xff
Overwritten with 0x00 → Overwritten with 0xff → Overwritten with 0x00 →
Overwritten with 0xff → Overwritten with 0x00 → Overwritten with 0xff →
Overwritten with 512 bytes of the specified data
Overwritten with 0x00 → Overwritten with 0xff → Overwritten with 0x00 →
Overwritten with 0xff → Overwritten with 0x00 → Overwritten with 0xff →
Overwritten with 0xaa
Overwritten with 0x00 → Overwritten with 0xff → Overwritten with 0x00 →
Overwritten with 0xff → Overwritten with 0x00 → Overwritten with 0xff →
Overwritten with 0xaa → Verified
6
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