HP Designjet T7100 Printer Series - Certificate of Volatility

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This statement provides a generic view of memory devices volatility of the stated Designjet printers. It should not be use as a supporting document directly

or indirectly for any claims against Hewlett-Packard. HP assumes no obligation to any legal issues arise from the use of this document directly or indirectly.

This letter 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

HP Designjet T7100 Printer Certificate of

Volatility

Introduction

The following is a statement regarding the volatility of customer data stored in memory devices

and hard disk drives of the HP Designjet T7100 Printer..

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

printer is turned off, this 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 in HP Designjet T7100 Printer include:

 Main RAM memory. 1Gbyte by default; upgradeable up to 1.5GBytes. 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 HP Designjet T7100 Printer include:

 NVRAM – BIOS. 1 MBytes. It does not contain user data. Its purpose is to act as the

bootloader for the BIOS

 CMOS Memory. 256 Bytes. It does not contain user data. Its purpose is to contain BIOS

parameters

 NVM in printheads and ink supplies. 128 Bytes per printhead / ink cartridge. It contains

usage information and control parameters for the printhead or ink supply

 NVM at line sensor. 2KB. Iy contains calibration tables for the sensor

 NVM at Printmech PCA. 32 KB. It contains printer settings and calibrations; it also

contains usage counters. It can be reset to factory defaults by a service engineer

 NVM. 64 KBits. Mounted on the RFID Tag, contains a copy of the printer identification

values. It's not possible to clear the memory.

Summary of content (2 pages)

PAGE 1
HP Designjet T7100 Printer Certificate of Volatility Introduction The following is a statement regarding the volatility of customer data stored in memory devices and hard disk drives of the HP Designjet T7100 Printer.. The printer uses volatile memory to store customer data during the printing process. When the printer is turned off, this volatile memory is erased. The printer uses non-volatile memory to store device configuration information.
PAGE 2
Hard Disk drives The printer contains a 160GBytes hard disk drive which has different purposes. It is not possible to operate the printer without the hard disk drive. User information can be stored in 4 different partitions of the hard disk drive and can include:  Calibration data and printer settings  User plots (in rasterizer format, i.e.