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Python Thermal Printing: A Comprehensive Guide for Printing on Thermal Printers

In this tutorial, we’ll explore how to effortlessly print receipts, invoices, and tickets on a thermal printer using Python. I’ll introduce you to a powerful plugin that I’ve developed, enabling seamless integration for Python-based applications.

With this plugin, you’ll gain the ability to effortlessly print tickets from Python, regardless of your preferred framework—whether it’s the terminal, Flask, Tkinter, Django, or any other Python-supported platform.

It provides extensive functionality, allowing you to print images, barcodes, text with accents, change fonts, rotate text, and much more, sending the ESC POS commands native to thermal printers.

Join me as we dive into the world of thermal printing using Python, empowering you to generate professional-quality prints effortlessly.


Image printing on Thermal printer

When printing receipts on thermal printers (ESC POS) sometimes it is needed to print images of any type, for example, to print the customer’s logo and so on.

Image printing in thermal printer receipt

Image printing in thermal printer receipt

In this post I will show you how to print any kind of images: you will be able to print local images, base64 images and internet images.

Please note that we will print images on thermal printer by using JavaScript, but once you learn how to do it with JS you will be able to do it from another programming languages.


Send bytes to thermal printer with C# and ESC POS

In this article I will show you how to use native C# to open a thermal printer as a file and send it bytes or data including ESC POS commands.

Remember that I already have a plugin that allows you to print on thermal printers and exposes a consumable HTTP API from any programming language so that you can use it and not implement your own library, but if you want to see how it’s done, keep reading.


How to print QR codes on Thermal printer

Summary: In this post I will show you how to print readable QR codes on a thermal printer (also called ticket printer, pos printer, etc.) using JavaScript and a plugin.

If you have followed my posts, you will know that a long time ago I developed a plugin and I have added new features, until today we print QR codes on a thermal printer.

Some time ago I showed you how to print a ticket /receipt directly from browser, today we will use it to print a QR code.


Print ticket in thermal printer directly from browser

In this post I will show you how to print a receipt in a thermal printer directly from web browser, without user interaction and confirm dialogs, by using a free plugin.

Thermal printer plugin - Receipt example