[cups] still can't print to a network printer.

[Gary Dale]

I'm running CUPS 2.4.7 on my Debian/Trixie workstation and CUPS 2.4.2 on 
my Debian/Bookworm file/print server.

My printers predate the move to IPP everywhere that seems to have the 
CUPS team so enthralled. They use actual drivers that let me use them 
reasonably (e.g. borderless photo prints). However, despite being 
shared, I can't print to them from my workstation.

They don't show up in a list of network printers the way they used to. 
And there doesn't seem to be a way to manually add them through CUPS. 
When I try by selecting a printer identified by @ <server name> then try 
to print to it, I get a "printer not found" error. I've tried using 
using the ipp: driver options (there seem to be IPP everywhere and 
sometimes a driverless option for the printer) or the actual driver but 
nothing works.

And trying it a raw queue, which used to be a fallback if the network 
printers weren't found properly, seems to turn off colour printing.

I am getting extremely frustrated by the way CUPS seems to be getting 
worse over time. It's gone from being relatively simple to use to 
something no longer provides the basic functions. The only thing that 
seems to have gotten better is that my wife can send photos from her 
iPhone to a wifi printer. But to actually use CUPS to do any work is 
painful.