Android Thermal printer Font Family

Question

I'm using this app to print from MTP-II APP and it's working fine. However, I need to print in a sans-serif font and it's printing in a serif font. is there a way I can add a font to it?

Answer 1

After suffering for a long time. I finally found a way around that is to convert it into PDF file and then print it. it treats the whole file as an image.

True Solution: The manual has commands to change the font on the printer. there are two fonts available, you can switch between them programmatically and also by pressing a sequence of buttons on the printer.