Secure disk erase – HP Designjet T1100 MFP series User Manual
Page 151
When you see the message, you should contact HP Support (see
Contact HP Support on page 196
and request the maintenance kit. Three of the kits are installed by service engineers only; the fourth
consists of a replacement cutter, which you can install yourself (see
Replace the cutter on page 132
).
Secure Disk Erase
The printer's hard disk is used as a temporary storage area for print jobs. The Secure Disk Erase facility
can completely erase your information from the hard disk to protect it from unauthorized access. You
can choose to erase particular files, or the whole hard disk.
Secure Disk Erase provides three different levels of security:
●
Non-Secure Fast Erase: all pointers to the information are erased. The information itself remains
on the hard disk until the disk space it occupies is needed for other purposes, and it is then
overwritten. While it remains on the disk, it is difficult for most people to access, but may be
accessed using software designed for the purpose. This is the normal method in which files are
erased on most computer systems; it is the fastest method but the least secure.
●
Secure Fast Erase: all pointers to the information are erased, and the information itself is also
overwritten with a fixed character pattern. This method is slower than Non-Secure Fast Erase, but
more secure. It may still be possible to access fragments of the erased information by using special
tools to detect residual magnetic traces.
●
Secure Sanitizing Erase: all pointers to the information are erased, and the information itself is
repetitively overwritten using an algorithm designed to eliminate any residual traces. This is the
slowest method, but the most secure. Secure Sanitizing Erase meets the US Department of
Defense 5220-22.m requirements for clearing and sanitization of disk media. This is the default
security level when using Secure Disk Erase.
Secure Disk Erase is one of the facilities provided by Web JetAdmin, which is HP's free Web-based
print management software: see
If you have difficulty in using Secure Disk Erase from Web JetAdmin, please contact HP Support:
see
Contact HP Support on page 196
.
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