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3. Ensuring Information Security
• Depending on the amount of data and the erasure method, full erasure might take several hours.
• Once in progress, the Erase All Memory function can be paused, but not stopped. No other operations
are possible until all data is erased.
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• Data is erased by overwriting it with random numbers a specified number of times. You can specify
that the data is overwritten up to three overwrites (the minimum is one). The default number of overwrites
is three.
• Even if there is still hold print, stored print, confidential print, or test print data remaining on the hard
disk, the "No Remaining Data" overwrite icon will be lit after erasure is completed.
Auto Erase Memory Setting
This can be specified by the machine administrator.
A document scanned in copier, fax, or scanner mode, or print data sent from a printer driver is temporarily
stored on the machine's hard disk. Even after the job is completed, it remains in the hard disk as temporary
data. Auto Erase Memory erases the temporary data on the hard disk by writing over it.
Overwriting starts automatically once the job is completed.
The copier, fax, and printer functions take priority over the Auto Erase Memory function. If a copy, fax or
print job is in progress, overwriting will only be done after the job is completed.
For details about logging on and logging off with administrator authentication, see "Logging on Using
Administrator Authentication", "Logging off Using Administrator Authentication".
• When Auto Erase Memory is set to [On], temporary data that remained on the hard disk when Auto
Erase Memory was set to [Off] might not be overwritten.
• If the main power switch is turned to [Off] before Auto Erase Memory is completed, overwriting will
stop and data will be left on the hard disk.
• Do not stop the overwrite mid-process. Doing so will damage the hard disk.
• Should the main power switch be turned to [Off] before Auto Erase Memory is completed, overwriting
will continue once the main power switch is turned back to [On].
1.
Press the [User Tools/Counter] key.
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Clear
This icon is lit when there is no temporary data to be overwritten.
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