Ricoh Aficio SP 9100DN Software Guide - Page 319

Deleting Data on the hard disk Deleting Data on the hard disk hard disk The printer's hard disk lets you store data under the printer, as well as the address book and counters stored under each user code. Overwriting the Data on the hard disk To use this function, the optional DataOverwriteSecurity unit must be installed. To prevent data on the hard disk being leaked before disposing of the printer, you can overwrite all data stored on the hard disk. You can also automatically overwrite temporarily-stored data. • Depending on the hard disk capacity and the method of erasing the data, this action may take a few hours. Once you start the Erase All Memory function, no other printer operation is possible until the function completes or you quit the function. Auto Erase Memory Setting To erase selected data on the hard disk. Erase All Memory To erase all the data on the hard disk. Methods of Erasing the Data You can select the method of erasing the data from the following: The default is "NSA". 9 NSA*1 Overwrites the data on the hard disk twice with random numbers and once with zeros. DoD*2 Overwrites the data with a number, its complement, and random numbers, and then checks the result. Remote Numbers Overwrites the data with random numbers the specified number of times. You can specify between 1 and 9 as the number of times the data is overwritten with random numbers. The default is 3 times. *1 National Security Agency *2 Department of Defense 317