HP DesignJet T1700 Printer 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 HP. 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.

Introduction

This document is a statement regarding the volatility of customer data stored in HP DesignJet T1700

Printer Series memory devices and hard disk drive.

The printer uses volatile memory to store customer data during the printing process. When the printer

is turned off, the volatile memory is erased.

The printer uses non-volatile memory to store device configuration information. This non-volatile

information is used to initialize the volatile memory when the printer is turned on and at the beginning

of a print job.

The printer also contains a hard disk drive that retains data after the printer is powered off.

Volatile memory

Volatile memory components in the HP DesignJet T1700 Printer Series include:

• Main RAM memory. 4GB by default. Used as system memory. All information is erased when the

printer is powered off.

• Other volatile memory used as the main memory for some ASICs or as microprocessor cache.

Non volatile memory

Non volatile memory components in the HP DesignJet T1700 Printer Series include:

• CMOS Memory – BIOS 16 MB. Does not contain user data. Its purpose is to act as the BIOS

bootloader.

• 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 in I/O Card. 18 Kbytes. Contains information with the control parameters for the Gigabit

Ethernet card.

HP DesignJet T1700 Printer Series

Certificate of Volatility

PAGE 1
HP DesignJet T1700 Printer Series Certificate of Volatility Introduction This document is a statement regarding the volatility of customer data stored in HP DesignJet T1700 Printer Series memory devices and hard disk drive. The printer uses volatile memory to store customer data during the printing process. When the printer is turned off, the volatile memory is erased. The printer uses non-volatile memory to store device configuration information.
PAGE 2
Hard Disk Drives The printer contains a 500 GB encrypted 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.