Problem: Windows 10 does not change back to your main printer after printing a receipt.

1. Left click on the Windows Start button.
2. Open on Settings (Third up from the bottom).
3. Devices
4. Click on Printers and Scanners.
5. Scroll down the list of printers on the right.
6. See the option named “Let Windows manage my default printer”. Turn it off as shown below:
7. Close the Window using the X in the top right corner
8. That’s it.