Hard DiskErasing Data on the Printer’s Hard DiskYou 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 DetailsHigh Speed A few seconds Erases le management data for print job data stored on theprinter’s hard disk. Choose this method for relatively fasterasure. Because only the le management data is erased, theprint job data itself is not erased. Note that it may be possible toread this data using commercial data recovery software.Secure High Spd. About 40 minutes Overwrites the entire hard disk with random data. No vericationis performed to check if the data was correctly written. Choosethis method to erase highly condential data. Note that it maybe possible to read the overwritten data using specialized datarecovery tools.Secure About 20 hours Overwrites the entire hard disk with 00, FF, and random data(one time each). Verication is performed to check if the datawas correctly written. Choose this method to erase especiallycondential data. It is virtually impossible to recover theoverwritten data. Conforms to the DoD5220.22-M standard ofthe U.S. Department of Defense.Note• For a more secure method of preventing data recovery, we recommend physically or magneticallydestroying 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 Yes, and then press the OK button to display the conrmation screen.6. Press ▲ or ▼ to select Yes, and then press the OK button to start erasure.Hard Disk 623
