updated March 18, 2002

Memory Units

Random access memory (RAM) is used for storing the image data for the thermal printhead and program code. It is also used for storing incoming data from the communication port.

Flash memory is used for many purposes, including:

vCharacter set storage (1600 KB on Models TI5 and TG5, 1100 KB on models TF7 and TM7)

vPersonalized message storage (8 KB)

vLogo or APA message storage (64 KB)

vFlash memory data storage (300 KB on Models TI5 and TG5, 80 KB on models TF7 and TM7)

vProgram code (256 KB)

Personalized messages are those messages that are printed on each receipt in a POS environment. Storing these messages in the flash memory greatly reduces the data transmission time to the printer and the processing time of that data by the microprocessor. This is also true of graphics or APA messages, which require a significant amount of transmission and processing time.

Flash memory can also be used as a storage place for customer data. This data could be journal data.

Immediate Commands

SureMark models TI5, TG5, TF7, and TM7 have 16 KB of memory to store incoming commands and data.

Most commands will be received and then executed sequentially. However, several commands execute immediately upon receipt. These commands are:

v“Download Graphics (Logo) Commands” on page 109

v“Predefine Messages” on page 111

v“Download User-Defined Characters” on page 112

v“Extended Address Command – Request Printer ID” on page 107

v“Real-Time Requests” on page 156.

Voltage Conversion Circuitry

The printer requires two voltages. The printheads and motors use +24 V dc. Powering the logic circuitry requires +5 V dc. Printer input voltage is one of the following:

 

Communication Mode

Power Requirement

 

RS-485

+38

V dc or +24 V dc, and +5 V dc

 

RS-232

+24

V dc

USB

+24

V dc

In each case, a single dc-to-dc converter converts voltage to +24 V dc and +5 V dc.

An autoswitch circuit on the interface card senses the operating mode (RS-485,

RS-232, powered USB, or standard USB with power brick) and routes input

voltages appropriately.

 

 

Appendix B. Technical Information 79

Page 103
Image 103
IBM TG5, TM7 Memory Units, Immediate Commands, Voltage Conversion Circuitry, Communication Mode Power Requirement RS-485

TI5, TG5, TM7, TF7 specifications

IBM has long been a pioneer in the field of technology and enterprise solutions, consistently delivering innovations that redefine industry standards. In line with this tradition, IBM has unveiled its latest offerings: TF7, TM7, TG5, and TI5. Each of these models is designed to cater to specific needs within the growing arena of data processing and management.

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In conclusion, IBM’s TF7, TM7, TG5, and TI5 systems exemplify cutting-edge technology tailored to meet diverse industry needs. Each model integrates robust features, advanced security measures, and efficient processing capabilities, ensuring organizations can thrive in an ever-changing digital landscape. Whether for data management, transaction processing, graphics rendering, or IoT applications, these solutions pave the way for a more connected, efficient, and secure future.