Here’s my write up from the time: https://www.djackson.org/printer-discovery-using-dns-sd/

The article says the formats need to include ‘image/urf’, which afaik wasn’t true in 2017, and there may be other salient differences these days. We subsequently moved to a newer printer w/built-in AirPrint.

Is this for AirPrint or just Bonjour? I see there's a note at the bottom that you were also using handyPrint.

I see that note, and the wording on it confuses me. My recollection, and some confirmation from this article [1], is that I was using handyPrint when connected to the mac via USB. At the time of the blog post I wrote, I was switching from usb to ethernet, and discovering that I didn’t need a separate computer to make the bonjour / mDNS announcements.

It’s still reliant on the printer handling the correct print protocols (so that CUPS isn’t needed to translate), but my specific printer did work.

https://www.macworld.com/article/673717/how-to-add-airprint-...