Erasing Data On The Printer's Hard Disk - Canon imagePROGRAF iPF820 User Manual

Hard Disk

Erasing Data on the Printer's Hard Disk

You 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
High Speed
Secure High Spd.
Secure
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.
•
You cannot erase data on the hard disk during print jobs.
•
Conversely, print jobs cannot be processed during erasure of hard disk data.
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 Yes, and then press the OK button to display the conrmation screen.
6.
Press ▲ or ▼ to select Yes, and then press the OK button to start erasure.
542 Hard Disk
Time Required
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.
About 40 minutes Overwrites the entire hard disk with random data. No verication
is performed to check if the data was correctly written. Choose
this method to erase highly condential data. Note that it may
be possible to read the overwritten data using specialized data
recovery tools.
About 24 hours Overwrites the entire hard disk with 00, FF, and random data
(one time each). Verication is performed to check if the data
was correctly written. Choose this method to erase especially
condential data. It is virtually impossible to recover the
overwritten data. Conforms to the DoD5220.22-M standard of
the U.S. Department of Defense.
Details