When you design or print your labels, you can face the following issues:
In NiceLabel Designer you can't select printer internal fonts.
When printing to a remote printer, printer fonts or third-party TTF fonts convert to Arial or some other default Windows font.
The Blocking Untrusted Fonts feature prevents using printer fonts or third-party TTF fonts. Your system administrator can disable or limit this feature. Read more about the Blocking Untrusted Fonts feature in the Microsoft article.
Install printer driver locally on a computer where the remote printer is connected.