Xerox® Security Guide for Entry Production Color Class Products 
March 2019   Page  7-37 
 
 
software is 
upgraded or 
reinstalled. 
OS, Boot code, Application 
code, 
Program constant data. 
Contains no 
user or job specific data 
Content 
cannot be 
modified in the 
field. 
Contains no user or job 
specific data. 
Contains machine specific 
data 
(hardware ID, system 
settings, realtime 
control parameters, print job 
control state, performance 
log 
information, usage counters) 
Content can 
be initialized to 
factory default 
values. 
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. 
 
 
PCUI Non-Volatile Storage 
Contains User Data (E.g. Print, 
Scan, Fax) 
 NIST 800-171 Overwrite Support 
Contains Configuration Settings 
Note: Configuration settings may be erased by the reset to factory defaults feature. 
IC- Integrated Circuit, soldered to circuit board 
HDD- Magnetic Hard Disk Drive 
SSD- Solid State Disk 
SD Card- Secure Digital Card