Epson TM-P20, Техническое справочное руководство

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NV Memory
The printer's NV memory (Non-Volatile memory) stores 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

Customized values and memory switches

User-defined page

Maintenance counter
NV Graphics Memory
Graphics, such as shop logos to be printed on receipts, can be stored. Even if communication speed is low, high
speed graphic printing is possible.
Use the TM-P20 Utility to register graphics. You can also print and confirm the registered graphics in the TM-
P20 Utility or NV graphics 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.
Use ESC/POS commands to store and read the text data.
Customized Values and Memory Switches
With the customized values and memory switches, which are software switches for the printer, you can
configure various settings of the printer.
To set the customized values and memory switches, see "Software Settings" on page 47 .
User-defined Page
You can store character data in the user-defined page (character code table: page 255) so that you can also print
characters not resident in the printer.
As a guide when you program applications, NV memory should be rewritten 10 or fewer times a day.

For detailed information about the TM-P20 Utility, see the TM-P20 Utility User’s Manual.

To use the NV graphics print mode, see "NV graphics information print mode" on page 56 .
For detailed information about ESC/POS commands, see the ESC/POS Command Reference (see "ESC/
POS" on page 69 ).