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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.