I have two Apple LaserWriter 12/640 PS printers which I still use.
Since Apple axed support for this printer in modern OSses, normally I use a G5 as a printer server. BUT someone told me that it's highly likely the LaserWriter 12/640 PS can be used directly from a modern Mac with macOS Sierra, adding it as an IP printer. I searched the net for information but I didn't find anything but this hint in this discussion: "I have learned how to access the Apple Laserwriter 12/640 config. file using Telnet. Luckily I keep an old Mac Pro Desktop with Tiger and found the printer driver on it and copied it to my El Capitan laptop. It works as an IP printer using the old driver."
I do have an old Apple LaserWriter 12/640 PS driver and I put in the Printers folder of my MacBook Pro with macOS Sierra (see attached picture), and of course the printer is in the same LAN. The problem is, I don't know how to add this printer as an IP printer. I even don't know if I have to find its IP address, or how to do it.
Anyone having a link to some informative explanation — or willing to give that informative explanation?
Thanks in advance,