If you have macOS High Sierra and a Canon SELPHY CP810 or CP900, you had noticed that Canon didn’t update his drivers in a while and that you cannot install them on your new OS. Canon didn’t publish any official drivers for these printers on the latest macOS.
Well, today, you can! Thanks to a little tweak in the drivers files, it nows install perfectly on macOS High Sierra.
And here is your driver compatible with OSX 10.13 🙂
You might need to disable security check as said on the documentation.
Thanks redogg for the tutorial I’ve followed here: https://discussions.apple.com/message/23725252#23725252