HP LaserJet Managed MFP E72425-E72430, E72525-E72535, E77422-E77428, E77822-E77830, E82540-E82560, E87640-E87660 - Hard disk security (white paper)

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Formatter eMMC Temporary Job Files
Formatter eMMC storage does not support Overwrite erase options. Only the Non-Secure Fast Erase option is available.
Figure 6: Managing Formatter eMMC Temporary Job Files settings with in the EWS
Note: For eMMC erase capabilities see “Appendix B: eMMC Security Characteristics”
Disk Initialization Commands
These commands reinitialize the hard disk or sections of the disk to provide troubleshooting and diagnostic capabilities.
The commands are similar to disk formatting commands and do not provide sector level data overwrite. These erase
command are not recommended for securely removing customer data.
These commands are only accessible from the device pre - boot menus.
Format Disk
Format Disk removes all data from the disk. This command will render the device inoperable. The device firmware must be
re-installed to the disk before the device can be used again.
Figure 7: Format Disk in device Pre - boot Menu
Partial Clean
Partial Clean removes all data from the disk with the exception of the compressed operating system installation code in
the repository and initiates a reload of the device operation system.
Figure 8: Partial Clean in device Pre - boot Menu