Epson TM-P20 Technical Reference Guide

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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
).

Epson TM-P20 Specifications

General

Type	POS printer
Color	No
Print technology	Thermal
Maximum resolution	203 x 203 DPI
Rechargeable	Yes
Electromagnetic compatibility	FCC class A, CE
Mean cycles between failures (MCBF)	16000000
Power source type	AC, Battery
Battery life (max)	16 h
Product color	Black
Safety	EN
Country of origin	China
Sound pressure level (printing)	57 dB
Mean time between failures (MTBF)	120000 h
Media thickness	0.05 - 0.08 mm
Maximum roll diameter	40.4 mm
Supported paper width	58 mm
Wi-Fi standards	802.11a, 802.11b, 802.11g
USB connector	Mini-USB Type-B
Standard interfaces	NFC, USB 2.0
Connectivity technology	Wired & Wireless
Package depth	240 mm
Package width	195 mm
Package height	145 mm
Package weight	1482 g
Cables included	AC, USB
Quantity per pack	1 pc(s)
Operating relative humidity (H-H)	10 - 90 %
Pallet width	800 mm
Pallet height	1020 mm
Pallet length	1200 mm
Pallet width (UK)	1000 mm
Quantity per pallet	216 pc(s)
Quantity per pallet (UK)	288 pc(s)
Quantity per pallet layer	36 pc(s)
Harmonized System (HS) code	84433210
Quantity per pallet layer (UK)	48 pc(s)

Weight and Dimensions

Depth	120 mm
Width	79 mm
Height	44 mm