Owner manual

Menu overview and advanced features_ 39
Manual Image Overwrite
When printing, copying, scanning, and faxing, the machine temporarily
uses memory space. For security reasons, you can set the machine to
manually overwrite secure non-volatile memory. If you want to secure
memory space, you can manually overwrite secure non-volatile memory.
1. Press Machine Setup > Security > Image Overwrite > Manual
Image Overwrite from the display screen.
2. Select the appropriate option.
• Overwrite Temporary Data: Select to overwrite temporary
data.
• Over
write Document Data: Sel
ect to overwrite document data.
• Overwrite System Data: Select
to overwrite system data.
When you overwrite the data manually, note that all the data in
the system including the ones in the hard disk is overwritten.
3. Press OK to save the change or Back (Cancel) to return to the
previous screen.
Manual Image Overwrite Crash Recovery
If the system crashes during the the manual image overwrite process,
the administrator can set the machine to repeat the manual image
overwrite after the system is rebooted.
1. Press Ma
chine Setup > Security > Image Overwrite > Manual
Image Overwrite Crash Recovery from the display screen.
2. Select the appropriate option.
• Enable: The machine will repeat manual image overwrite after
the system reboot.
• Disab
le: Th
e machine will go to the normal booting mode after
the system reboot.
3. Press OK
to
save the change or Back (Cancel) to return to the
previous screen.
Overwrite Method
You can select the method for overwriting the secure non-volatile
memory (hard disk).
1. Press Machine Setup > Security > Overwrite Method from the
display screen.
2. Select the appropriate option.
• DoD 5220.28M: Select to overwrite the memory 3 times. When
overwriting three times, patterns 0x35, 0xCA, 0x97 are used to
overwrite the disk’s content. This method of overwriting the disk
is specified by US DoD.
• Australian ACSI 33: Select to overwrite the memory 5 times.
Wh
en overwritin
g 5 times, character “C” and its complement
alternatively are used to overwrite the disk. After the 2nd time,
there is a mandatory validation. For the 5th time, random data is
used.
• Ge
rman standard VSITR: Select to overwrite the memory 7
times. When overwriting for the 6 times, alternate 0x00 and 0xff
are used to overwrite the disk, and, in the 7th time, the disk is
written with 0xAA.
• Custom
: Sel
ect to determine the number of times the memory
will be overwritten. The hard disk will be overwritten as many
times as the number you select.
3. Press OK to save the chan
ge or Back (Cancel) to return to the
previous screen.
Accounting
You can set usage limits for each user to use each feature if
Pre-installed accounting method is chosen (see "Authentication" on
page 40).
You can also use this feature from the SyncThru™ Web Service.
Open the Web browser from your networked computer and type
the IP address of your machine. When SyncThru™ Web Service
opens, click the Security tab > User Access Control >
Accounting > Accounting Setup. (see "Quota" on page 93).