On Tue, Nov 14, 2023 at 5:58 PM Stephen Morris <samorris@netspace.net.au> wrote:
[...]
Hi George,
    I was pointing this out because I don't use the IPP Anywhere interface, and cups has never supplied drivers for my printer, I've had to always the Epson supplied driver to enable printing in Linux. This was just an observation with, when adding a printer, cups shows me two entries under the "Discovered Network Printer" section, one for IPP Anywhere and one for the "Driverless" option, where the IPP Anywhere shows two separate driver definitions for cups drivers and the driverless option, whereas the "Driverless" selection displays all drivers in the one list with the driverless driver listed first and all the cups drivers then listed in alphabetical order.


I wonder if we are in a transitional phase where legacy CUPS is mixing with IPP.   Some manufacturers may provide legacy support in their printers when they add IPP,
but (until Apple changes AirPrint), most manufacturers' networked printers will provide IPP because they want Apple AirPrint to work for customers using IOS.

--
George N. White III