Disconnect communication cables connected to the machine.
Log in as the machine administrator from the control panel.
Press [System Settings].
Press [Administrator Tools].
Press [Next] twice.
Press [Erase All Memory].
Select the method of erasing.
If you select [NSA], [DoD], [BSI/VSITR], [Secure Erase], or [Format], proceed to Step 10.
If you select [Random Numbers], proceed to Step 8.
Press [Change].
Enter the number of times that you want to overwrite using the number keys, and then press [].
Press [Erase].
Press [Yes].
When erasing is completed, press [Exit], and then turn off the main power.
For details about turning off the main power, see "Turning On/Off the Power", Getting Started.
If the main power switch is turned off before "Erase All Memory" is completed, overwriting will start over when the main power switch is turned back on.
If an error occurs before overwriting is completed, turn off the main power. Turn it on again, and then repeat from Step 2.