My new printer works fine connected to the iMac by a USB cable and is clearly connected to our network router but I cannot persuade AirPrint to function and as we have two iPhones, two iPads and two computers working in the house this would be very useful. Has Apple done something strange, because lately my old printer which worked fine with AirPrint stopped that function, which is why I have replaced it with the new one. the old oneness rubbish anyway in general. I am following instructions as given but am told every time ‚no AirPrint printers found. Thank you for any help you can offer. Apparent it’s a common problem, but I wanted to stick with Canon printers.