Hi and welcome to the Forum!
Have you had a look to see if the firmware of the printer is up to date?
There are some apps available for Canon printers also.
In the interest of having your thread seen by a wider audience, I've moved it to our Help Section.
Have you had a look to see if the firmware of the printer is up to date?
Printer firmware update may be necessary for AirPrint function. Certain exceptions may apply. A PC running Windows XP or later or A Mac running OS 10.4.11 or later and USB cable required to perform firmware update. AirPrint functionality requires an iPad, iPhone 3GS or later, or iPod touch 3rd generation or later device running iOS 4.2 or later, and an AirPrint-enabled printer connected to the same network as your iOS device. A printer connected to the USB port of your Mac, PC, AirPort Base Station, or Time Capsule is not supported
There are some apps available for Canon printers also.
In the interest of having your thread seen by a wider audience, I've moved it to our Help Section.