How to add a printer?
You don't "add" a printer. If it's AirPrint compatible, it will show up in the print menu of the application you are trying to print from. If it isn't, then it won't.
I don't think it is AirPrint So how to add a printer?
Buy a printer that supports AirPrint. This page has a list of brands and models of printers that support AirPrint.
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