If the erased disk contained the system firmware, performing an Erase/Unlock will render the device inoperable, and a new firmware image must be installed to the disk before the device can be used again. It is available for accessory disks in EWS and Web Jetadmin. This erase mode is only accessible from the pre - boot menus for the main system disk. There is no method to recover the encryption keys and no method to recover the encrypted data once the keys have been changed. This instantly renders all the encrypted data on the disk unreadable. Selecting the Erase/Unlock option for one of these disks forces its encryption keys to be destroyed and new keys generated. Erase / Unlock Encrypted Disk The HP High Performance Secure Hard Disk supports a special erase referred to as a Crypto Erase. 1 Secure Erase 2 Erase / Unlock 3 Get Statuses Figure 5: Secure Disk Erase in device Pre - boot Menu 4. Temporary job files include: o Temporary data for print jobs o Temporary data for copy, fax,, and send to network folder jobs The File Erase Modes available are: o Non-secure Fast Erase (No overwrite) o Secure Fast Erase (Overwrite 1 time) o Secure Sanitizing Erase (Overwrite 3 times) Note: For File Erase mode specifications see Appendix A Figure 1: Managing Temporary Job Files settings in the Embedded Web Server (EWS) Figure 2: Secure File Erase Mode settings in Web Jetadmin Note: This setting corresponds to Managing Temporary Job Files setting in EWS 2 PublicĤ This erase mode is only accessible from the pre - boot menus for the main system disk. Managing Temporary Job Files The feature controls how temporary job files are erased at the completion of print, copy, fax, or digital send jobs. Secure Erase Commands HP FutureSmart Firmware printing devices support four different data erase features to securely erase ongoing job data, and for device decommissioning or redeployment. Industry standard ATA Secure Erase is an available option which securely wipes all data including spared and reallocated sectors for decommissioning devices (See Secure Disk Erase). The section of the disk containing job data can now be securely erased on demand, instead of performing an entire disk wipe (See Erase Job Data). 2 Overview This document discusses secure erase options and hard disk security on HP FutureSmart Firmware printing devices.
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