PrintNode - Remote Printing for Web Apps

Entra/Azure joined devices with parcel handling via a vendor such as DHL, Post Nord or similar make use of it.
From the Website:

PrintNode is a hosted printing service that can help you quickly, easily and securely add remote printing to your application. [...] At the core of PrintNode is event driven software and sockets so your print job is transmitted almost instantly to your printer. It is only limited by the size of the print job you send and the speed of your internet connection.