Lexmark MB2236 Embedded Web Server Administrator s Guide - Page 55

Disposing of a printer hard disk

Page 55 highlights

Lexmark Confidential until announced Securing printers 55 Type of memory Description Volatile memory Your printer uses standard random access memory (RAM) to buffer user data temporarily during simple print jobs. Nonvolatile memory Your printer may use two forms of nonvolatile memory: EEPROM and NAND (flash memory). Both types are used to store the operating system, printer settings, network information and bookmark settings, and embedded solutions. Hard disk memory Some printers have a hard disk drive installed. The printer hard disk is designed for printer-specific functionality. The hard disk lets the printer retain buffered user data from complex print jobs, form data, and font data. Erase the content of any installed printer memory in the following circumstances: • The printer is being decommissioned. • The printer hard disk is being replaced. • The printer is being moved to a different department or location. • The printer is being serviced by someone from outside your organization. • The printer is being removed from your premises for service. • The printer is being sold to another organization. Disposing of a printer hard disk Note: Some printer models may not have a printer hard disk installed. In high‑security environments, extra steps are needed to make sure that confidential data stored in the printer hard disk cannot be accessed. This precaution is necessary when the printer-or its hard disk-is removed from your premises. • Degaussing-Flushes the hard disk with a magnetic field that erases stored data • Crushing-Physically compresses the hard disk to break component parts and render them unreadable • Milling-Physically shreds the hard disk into small metal bits Note: Most data can be erased electronically, but the only way to guarantee that all data are completely erased is to destroy physically each hard disk where data is stored.

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Type of memory
Description
Volatile memory
Your printer uses standard
random access memory
(RAM) to buffer user data temporarily during simple print
jobs.
Nonvolatile memory
Your printer may use two forms of nonvolatile memory:
EEPROM and NAND (flash memory). Both types are used
to store the operating system, printer settings, network
information and bookmark settings, and embedded
solutions.
Hard disk memory
Some printers have a hard disk drive installed. The printer
hard disk is designed for printer-specific functionality.
The hard disk lets the printer retain buffered user data
from complex print jobs, form data, and font data.
Erase the content of any installed printer memory in the following circumstances:
The printer is being decommissioned.
The printer hard disk is being replaced.
The printer is being moved to a different department or location.
The printer is being serviced by someone from outside your organization.
The printer is being removed from your premises for service.
The printer is being sold to another organization.
Disposing of a printer hard disk
Note:
Some printer models may not have a printer hard disk installed.
In high
security environments, extra steps are needed to make sure that confidential data stored in the printer
hard disk cannot be accessed. This precaution is necessary when the printer—or its hard disk—is removed from
your premises.
Degaussing
—Flushes the hard disk with a magnetic field that erases stored data
Crushing
—Physically compresses the hard disk to break component parts and render them unreadable
Milling
—Physically shreds the hard disk into small metal bits
Note:
Most data can be erased electronically, but the only way to guarantee that all data are completely
erased is to destroy physically each hard disk where data is stored.
Lexmark Confidential until announced
Securing printers
55