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Deleting Data on the optional hard disk
❖ optional hard disk
The printer's optional hard disk lets you store data under the printer, as well
as the address book and counters stored under each user code.
Overwriting the Data on the optional hard disk
To use this function, the optional DataOverwriteSecurity unit must be installed.
To prevent data on the optional hard disk being leaked before disposing of the
printer, you can overwrite all data stored on the optional hard disk. You can also
automatically overwrite temporarily-stored data.
Note
❒ Depending on the optional hard disk capacity and the method of erasing the
data, this action may take a few hours. Once you start the Erase All Memory
function, no other printer operation is possible until the function completes
or you quit the function.
❖ Auto Erase Memory Setting
To erase selected data on the optional hard disk.
❖ Erase All Memory
To erase all the data on the optional hard disk.
❖ Methods of Erasing the Data
You can select the method of erasing the data from the following:
The default is "NSA".
NSA
*1
DoD
*2
Remote Numbers
*1
National Security Agency
*2
Department of Defense
Reference
For details, see the manual supplied with the DataOverwriteSecurity unit.
Deleting Data on the optional hard disk
Overwrites the data on the optional hard
disk twice with random numbers and once
with zeros.
Overwrites the data with a number, its com-
plement, and random numbers, and then
checks the result.
Overwrites the data with random numbers
the specified number of times.
You can specify between 1 and 9 as the
number of times the data is overwritten with
random numbers. The default is 3 times.
9
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