Xerox M118, M118i-4162 User Manual

Certificate of Volatility

Manufacturer: Xerox
Equipment Name: WorkCentre
Model: 118
Configuration: This item is networked to print servers with operating system VxWorks
General description: This printer is connected to a network.
Purpose: Multi-Functional Device, Print, Copy, Fax, and Scan to e-mail

1. Type of memory:

Marking Engine
DRAM: 96MB (32MB on-board + 64MB optional). The executable software is loaded

Flash ROM: 16MB. This flash memory contains the code necessary to boot, the

SEEP ROM: 256Byte. This memory contains the system’s setting information and error

Fax Card
Memory Card: 64MB Compact Flash. This device overrides the Marking Engine flash

SRAM: 256KB. This memory contains the system’s setting information, mailbox

Boot ROM: 1MB. This memory contains the code necessary to boot. This non-volatile

Print Controller
DRAM: 192MB (64MB on-board + 128MB optional). The executable software is

and run in this memory. It is also used for temporary storage of images,
including sent and received fax images and scan-to-email images, if
optionally equipped. This non-volatile memory is battery supported but will
loose information if removed from the unit.

executable code (operating system, document scheduler, etc.) and the
resident fonts. A power-on self test is performed and the bootstrap OS is
loaded. This area never contains any user image or document data. All code
except for the boot loader is stored in compressed format and is expanded in
the DRAM to be executed. When the fax kit is installed, this memory is not
used.

log data. The information is encrypted.

memory when present. This device contains the code necessary to boot, all
executable code (operating system, document scheduler, etc.) and all
resident fonts. A power-on self test is performed to ensure data integrity. This
device never contains any user image or document data. All operating
system and application executable control code resides here. All code
except for the boot loader is stored in compressed format and is expanded in
the DRAM to be executed.

information, speed dial information, Fax program memory, user management
information, and transmission logs are stored in it. The data gets encrypted
to be written. This memory is backed up with the battery.

memory has no image data stored in it.

loaded and run in this memory. It is also used for temporary storage of data
files and images. This information is not backed up and is lost when the
power to the printer is removed.

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Certificate of Volatility

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

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.

____ (Check here).

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