Author here. Funny this ended up here again! These days, we don't use this any more. First, because we now use primarily original Boca printers and are allowed

Author here. Funny this ended up here again! These days, we don't use this any more. First, because we now use primarily original Boca printers and are allowed to use the official drivers, and second, because we do 99% of printing from Android devices, where we also handle the protocol conversion ourselves, but it's a lot simpler without CUPS. Still, was a fun ride doing this back then!