Getting Started with Epson TM-T20iii

Introduction

The Epson TM-T20III is a reliable and cost-effective thermal receipt printer designed for small businesses and retail environments. With its compact size and easy-to-use features, this printer is ideal for businesses looking for efficient and high-quality receipt printing. It offers fast printing speeds, versatile connectivity options, and a user-friendly design, making it a popular choice for businesses seeking a dependable receipt printing solution.

Getting started

Unboxing and Contents

Step 1: Carefully unbox your Epson TM-T20III printer and ensure that all the necessary components are included in the package. These typically include the printer, power cable, interface cable (USB or Ethernet, depending on your model), roll of paper, and a user manual.

Step 2: Familiarize yourself with the printer’s physical features, such as the power button, paper feed button, and connectivity ports.

Hardware setup

Step 1: Plug the power cable into the printer and connect it to a power outlet.

Step 2: Turn on the printer using the power button.

Step 1: Open the printer cover.

Step 2: Insert the paper roll, ensuring it is placed correctly and aligned with the paper feed path.

Step 3: Close the printer cover.

Detecting Printer

Info: Please see the Point of Sale - Advanced - Paired Printer for steps to add a printer to eatOS app.

Test Print

Step 1: Be sure you have the eatOS app open and are logged in. The specific user does not matter.

Step 2: From your new order screen tap the drop-down arrow ( a) or slide the setting bar down ( b):

Step 3: Select Advanced

Step 4: Next , select Printer

Step 5: Followed by selecting Paired Printer.

Step 6: Tap on Detect. Followed by selecting your default KOT printer, receipt printer, and custom item.

Step 7: Tap on Test Printer

Troubleshooting

Here are some steps you can take if you're printer seems to be functioning incorrectly or not at all:

For additional info or troubleshooting, turn the printer off. After the printer is powered down, hold down the feed button and keep holding it while turning the printer back on. The printer should start printing diagnostics and information that includes the MAC address, IP info, etc.

What does an orange light indicate on my printer?

A flashing orange light on a printer can mean a few things, but it usually means a problem of some kind.

Flashing orange light

Solid orange light

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Updated on: 01/15/2026

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