Hard Disk
Erasing Data on the Printer ’ s Hard Disk
Y ou can erase data on the printer ’ s hard disk from the Control Panel .
There are three ways to erase the data, as follows.
Erasure Method
T ime Required
Details
High Speed A few seconds Erases le management data for print job data stored on the
printer ’ s hard disk. Choose this method for relatively fast
erasure. Because only the le management data is erased, the
print job data itself is not erased. Note that it may be possible to
read this data using commercial data recovery software.
Secure High Spd. About 40 minutes Overwrites the entire hard disk with random data. No verication
is performed to check if the data was correctly written. Choose
this method to erase highly condential data. Note that it may
be possible to read the overwritten data using specialized data
recovery tools.
Secure About 30 hours Overwrites the entire hard disk with 00, FF , and random data
(one time each). V erication is performed to check if the data
was correctly written. Choose this method to erase especially
condential data. It is virtually impossible to recover the
overwritten data. Conforms to the DoD5220.22-M standard of
the U.S. Department of Defense.
Note
• For a more secure method of preventing data recovery , we recommend physically or magnetically
destroying the hard disk. In this case, the hard disk can no longer be used.
• Erase HDD Data is not available if there is a job queue.
Also note that during execution of Erase HDD Data , print jobs cannot be processed.
1. Press the Menu button to display MAIN MENU .
2. Press ▲ or ▼ to select System Setup , and then press the ► button.
3. Press ▲ or ▼ to select Erase HDD Data , and then press the ► button.
4. Press ▲ or ▼ to select the method of erasure, and then press the ► button.
5. Press ▲ or ▼ to select Y es , and then press the OK button to display the conrmation screen.
6. Press ▲ or ▼ to select Y es , and then press the OK button to start erasure.
Hard Disk 571
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