A: Hi Philip,
Thanks for getting in touch.
I can't seem to find any Canon printers by the name or Canon 600. If it's reference to the Canon MG3650 then this does support Apple AirPrint. However, if it is another printer that is over 12 months old it will more than likely not be compatible with your Apple iPad. Therefore you would need to purchase a new machine.
You could take a look at the Canon MX495 - http://www.printerbase.co.uk/canon-pixma-mx495-a4-colour-multifunction-inkjet-printer.html?
This has built-in Apple AirPrint meaning it is compatible with your Apple iPad.
I hope this helps.
The Printerbase Team