If we are in the pay screen. and we revert back to the cart to add an item. when pay is pressed, the entire order reprints. not just the added item.
In fact, just the process of reverting back into the cart and back to pay, results in the entire order printing.. by comparison, the paid app " order labels" only prints if an item has been added.
This is specific to the print setting for a device that has counter service plan and an epson label printer configured.
simple register setup - is fine, only the additional item is printed.