Xerox Phaser 7760 管理员指南
Securing the Hard Drive
System Administrator Guide
4-10
Securing the Hard Drive
This section includes:
■
■
Selecting the Hard Drive Overwrite Security Option
When a file is deleted from the printer’s hard drive, only the file name is deleted; the data in
the file remains on the hard drive, regardless of the operating system. An unauthorized person
could, possibly, retrieve the data in the file that was deleted.
the file remains on the hard drive, regardless of the operating system. An unauthorized person
could, possibly, retrieve the data in the file that was deleted.
Printers with a hard drive have a Hard Drive Overwrite Security option. This option overwrites
the data stored on the hard drive of a file marked for deletion using DOD5200.28-M, a U.S.
Department of Defense three-pass overwriting process: first with a pattern of 0’s, next with a
pattern of 1’s, and finally with a random pattern of bits. This is done before the file’s directory
entry is removed and the storage space on the hard drive is marked as available for reuse. The
random pattern of bits stays on the hard drive until it is overwritten by another file.
the data stored on the hard drive of a file marked for deletion using DOD5200.28-M, a U.S.
Department of Defense three-pass overwriting process: first with a pattern of 0’s, next with a
pattern of 1’s, and finally with a random pattern of bits. This is done before the file’s directory
entry is removed and the storage space on the hard drive is marked as available for reuse. The
random pattern of bits stays on the hard drive until it is overwritten by another file.
By default, the Hard Drive Overwrite Security option is disabled. To select the Hard Drive
Overwrite Security option, use one of the following methods:
Overwrite Security option, use one of the following methods:
■
The printer’s control panel
■
CentreWare IS
Using the Control Panel
To select the Hard Drive Overwrite Security option:
1.
On the control panel, select
Printer Setup
, and then press the OK button.
2.
Select
File Security
, and then press the OK button.
Note:
If File Security is locked on the control panel, use CentreWare IS to select the Hard
Drive Overwrite Security option.
3.
Select
Overwrite Removals
, and then press the OK button.
4.
Select
On
or
Off
, and then press the OK
button.
Using CentreWare IS
To select the Hard Drive Overwrite Security option:
1.
Launch your web browser.
2.
Enter the printer’s IP address in the browser’s Address field (http://xxx.xxx.xxx.xxx).
3.
Click Properties.
4.
Select the Security folder on the left sidebar.
5.
Select Printing Security Settings.