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Xerox® Security Guide for Light Production Mono Class Products
4MB
Battery-backed
SRAM
(MCU NVM
PWBA)
Permanent storage of
machine setting
data/job log data. User image
data are not stored.
No
SRAM is not
erased
when a main
switch is
turned off. Not
customer
alterable.
Yes
2GB
SDRAM
(system
memory
DIMM)
Temporary storage of
program, and work
area
No
SDRAM is
erased when
a main switch
is turned
off.
Yes
8MB
Battery-backed
SRAM
(NVM PWBA)
Permanent storage of
machine setting
data/job log data. User image
data are not stored.
No
SRAM is not
erased
when a main
switch is
turned off. Not
customer
alterable.
Yes
512MB
SDRAM (page
memory
DIMM:IPS
PWBA)
Temporary storage of
work area
No
SDRAM is
erased when
a main switch
is turned
off.
Yes
512KB
SRAM (ESS
PWBA)
Temporary storage of
variables for IISS
No
SRAM is
erased when
machine is
powered
off.
Yes
4MB
SDRAM (ESS
PWBA)
Temporary storage of
work area
No
SDRAM is
erased when
a main switch
is turned
off.
Yes
Additional Information: The controller operating system memory manager allocates memory
dynamically between OS, running processes, and temporary data which includes jobs in process.
When a job is complete, the memory pages in use are freed and reallocated as required by the OS.
Controller Non-Volatile Memory
Size
Type
Use
User
Data
How to Clear
Volatile
16MB
Flash (MCU
PWBA)
Permanent storage of
program. User image
data are not stored.
No
Not customer
alterable.
No
128MB
Flash (ESS
PWBA)
Permanent storage of
program/font data. User
image data are
No
Not customer
alterable.
No