Solution: Windows 11 requires drivers to be digitally signed. If your new driver is from 2022 or earlier, it might be blocked.
sudo dpkg -i nts-e200m-cups-filter-1.4.arm64.deb nts e200m thermal printer drivers new
Microsoft maintains a driver repository. For the NTS E200M, you can search the Microsoft Update Catalog. Solution: Windows 11 requires drivers to be digitally
Download the new driver .zip file. Right-click it > Extract All. Do not run the installer from inside the zip. nts e200m thermal printer drivers new