Xerox WorkCentre M118-M118i-4162 - Manual (Page 2)

Certificate of Volatility
Version of 17-Oct-06 Page 2 of 3
Flash ROM: 24MB (8MB on board + 16MB optional). This Flash memory contains the
code necessary to boot, all executable code (operating system, PostScript
interpreter, network protocols, document scheduler, etc.), and the resident
fonts. A power-on self test is performed and the bootstrap OS is loaded. The
area never contains any user image or document data. All operating system
and application executable control code resides here. All code except for
the one of boot loader is in a compressed form and is developed to DRAM to
be executed. No user image data is stored in this memory.
NVRAM: 128KB. This non-volatile memory has no image data stored in it. The system
setting information, job memory, user management information, and various
kinds of logs are stored in it. The data gets encrypted to be written.
SEEP ROM: 4Kbit. This memory contains the system’s setting information.
FONT ROM: 4MB. This memory contains fonts used for printing.
There are other non-volatile memory devices in the multi-functional device, but these are used
solely for low-level I/O control. Some examples of this distributed control are:
• Photoreceptor
• Duplex
• Optional
tray
• Finisher
2. Accessibility: Is it accessible by accidental/intentional keystroke, or software malfunction?
No. However, the login system administrator or service technician (via diagnostic operation) may
adjust certain machine operational parameters. User data is never accessible.
3. If "YES, it is accessible, describe location and purpose.
Not
accessible.
If "NO", it is not accessible, __X____ (Check here).
4. Required memory: Is device needed for normal operation, i.e. required for this processing period?
All memory listed is required for normal operation.
5. Removal consequences: If device memory chip is erased, what impact will this have on operation and
normal function of device?
ROM memory device content is required and essential for operation and normal function of the
device. Loss would render the device inoperable. ROM memory never contains user data. This
memory is never overwritten or erased during normal operation. SDRAM memory (System Memory,
Page Memory) processes user data. Content of this memory is lost at power off.