Deleting Data On The Hard Disk; Overwriting The Data On The Hard Disk - Ricoh 9100DN - Aficio SP B/W Laser Printer Software Manual

Deleting Data on the hard disk

hard disk
The printer's 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 hard disk

To use this function, the optional DataOverwriteSecurity unit must be installed.
To prevent data on the hard disk being leaked before disposing of the printer, you can overwrite all data
stored on the hard disk. You can also automatically overwrite temporarily-stored data.
• Depending on the 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 hard disk.
Erase All Memory
To erase all the data on the hard disk.
Methods of Erasing the Data
You can select the method of erasing the data from the following:
The default is "NSA".
*1
NSA
*2
DoD
Remote Numbers
*1
National Security Agency
*2
Department of Defense
Deleting Data on the hard disk
Overwrites the data on the hard disk twice with
random numbers and once with zeros.
Overwrites the data with a number, its comple-
ment, 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 num-
bers. The default is 3 times.
9
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