If I setup a wireless network can I use Airprint on a printer that is NOT Airprint enabled?

The reason for my question is simple, my business has 20 printers and none of them are "airprint" enabled nor do they need replacing. My reps print order forms from their vans using Canon IP or IP100 and outdated handheld devices, (these devices are bluetooth enabled and we've never had a problem printing) I want to upgrade to ipads. I'm starting to feel this wont be possible unless I buy new printers.

Does anyone know if I can buy a cheap wireless router, create a wireless network then connect my ipad to any printer, airprint enabled or not??