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Chapter 1 Product Overview
NV Memory
The printer is equipped with the NV memory (Nonvolatile Memory) to store data even after the printer power
is turned off. NV memory contains the following memory areas for the user:
• NV graphics memory
• User NV memory
• Memory switches (Customized value)
• R/E (Receipt Enhancement)
• User-defined page
• Maintenance counter
NV Graphics Memory
Graphics, such as shop logos to be printed on receipts, can be stored. Even with a serial interface model whose
transmission speed is low, high speed graphics printing is possible.
Use the TM-T20III Utility to register graphics.
You can confirm the registered graphics in the NV graphics information print mode.
User NV Memory
You can store and read text data for multiple purposes, such as for storing a note including customizing or
maintenance information of the printer.
Memory Switches (Customized Value)
You can configure various settings of the printer.
For more information, see "Software Settings" on page 41.
R/E (Receipt Enhancement)
Graphics, such as shop logos to be printed on top or bottom of receipts can be registered.
Use the TM-T20III Utility to register graphics.
CAUTION
As a guide, NV memory rewriting should be 10 times or less a day when you program applications.
• For detailed information about the Epson TM-T20III Utility, see the TM-T20III Utility User's
Manual.
• For information about how to use the NV graphics information print mode, see "NV Graphics
I
nformation Print Mode" on page 52.