How do I change the font size on a POS58 printer in Linuxmint 18? After altering the printer so that it is now seen as usb Unknown, it prints but the font is too small to read. How can I change the font size so that I can read it? It is a POS 58 thermal printer from china, and after installing the printer drivers from the manufacturer, it could be seen but it wouldn't print until I saw a post whereby you changed the URL from a socket to usb, then it at least printed.
changing printer POS58 font
usb;cups;printer