Have you ever seen a network printer announce itself by talking to a print daemon on port 631? I’ve seen network printers announce themselves over DNS-SD/mDNS

Have you ever seen a network printer announce itself by talking to a print daemon on port 631? I’ve seen network printers announce themselves over DNS-SD/mDNS and over NetBIOS, AppleTalk, etc. All of those are a layer beneath the print daemon.