Canon imagePROGRAF iPF820 iPF820 User Manual - Page 556

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 Time 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 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. Secure 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. 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