Konica Minolta bizhub C250 - Manual (Page 145)

6 Control Panel Settings
6-20 C250
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To overwrite all data
1
In the Administrator Setting screen, touch [Security Setting].
2
In the Security Setting screen, touch [6 HDD Setting].
3
In the HDD Setting screen, touch [3 Overwrite All Data].
The Overwrite All Data screen appears.
4
Select the desired method for overwriting data on the hard disk, and
then click [Overwrite].
– The length of time to perform mode 1 is about 40 minutes.
A confirmation message appears, asking whether or not to overwrite
the data.