I have been able to setup and use AirPrint to print through USB connected to a Tahr-6.0.5 using a Canon MG2520. Works well enough that iPhones, iPads and Android devices can "see" the printer and use it as a networked printer.
I have not been able yet to successfully use KLV-Airedale to either find the printer or set it up in CUPS to print over the LAN.
F96_4-radky2-CE with CUPS can see the printer and will print to the Canon.