HP Designjet T2500 eMFP Series - Certificate of Volatility

This statement provides a generic view of memory device volatility for the stated HP Designjet printers. It should not be used
as a supporting document either directly or indirectly for any claims against Hewlett-Packard. HP assumes no obligation to
any legal issues arising from the use of this document either directly or indirectly. This document is privileged, confidential,
and contains private information. Any reading, retention, distribution, or copying of this communication by any person other
than its intended recipient is prohibited.
 CMOS Memory. 256 Bytes. Does not contain user data. Its purpose is to contain BIOS
parameters.
 NVM in ink supplies. 1KB per ink cartridge. Contains usage information and control parameters
for the ink supply.
 NVM in printheads. 256 bits per printhead. Contains usage information and control parameters
for the printhead.
 NVM at line sensor. 2KB. Contains calibration tables for the sensor.
 NVM at analog encoder PCA. 256 KB. Contains printer settings and calibrations; it also contains
usage counters. It can be reset to factory defaults by a service engineer.
 NVM. 64 Kbit. Mounted on the RFID Tag. Contains a copy of the printer identification values. It is
not possible to clear the memory.
 NVM 18 Kbyte. Mounted on a chip. Contains a copy of the printer identification values.
 NVM in service station. 1Kbyte. Mounted on a board that controls the printhead cleaning station
to manage the cleaning station.
 NVM in printhead carriage. 640 bytes. Contains information and control parameters for the
printhead.
 NVM in I/O Card. 18 Kbytes. Contains information with the control parameters for the Gigabit
Ethernet card.
 Scanner module NVM. 129 MB. Contains information about the boot sequence of this part and
does not store user information. The memory is located on the main board.
Hard Disk Drives
The printer contains a 320GB hard disk drive with different purposes. It is not possible to operate the
printer without the hard disk drive.
User information can be stored in 5 different partitions of the hard disk drive, and includes:
 Calibration data and printer settings.
 User plots (in rasterized format, i.e. already processed).
 User plots in native format (plots submitted to the Job Storage of the printer).
 Accounting information.
 Usage information.
An additional partition holds user information:
 Scan temporal files