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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 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.
If the main power switch is turned off before Auto Erase Memory is completed, overwriting will continue once the main power switch is turned back on.
If an error occurs before overwriting is completed, turn off the main power. Turn it on, and then repeat from Step 1.
Press the [Menu] key, and then select setting items using the [
] or [
] key.
Log in as the machine administrator from the printer's control panel.
Select [Security Options] 
Press [OK]
Select [Auto Erase Memory Setting] Press [OK]
Select [On] Select [HDDErase]
Select the method of erasing the data from [NSA], [DoD], or [Random Numbers]. Press [OK]
If you select [Random Numbers], enter the number of times that you want to overwrite. Press [OK]
Press [OK].
Press [Menu] twice.
Log out.
