connecting iPhone to air printer

[lovenancy]

I have a Canon pixma air printer and can't connect my iPhone or iPad to it to print, it says "no air printers found". I had managed to print a few weeks ago but not since. Printer is connected to wifi (wifi light lit) anyone know an obvious solution?! Thanks in advance.

[Gobbolinothewitchscat]

Uninstall printer and phone from wifi and reinstall. Hopefully that should work. Does your wifi have any firewalls etc?

[lovenancy]

Thanks I'll try that. I don't know if I have firewalls !