my ipad mini says 'no air printer found'.

See requirements for AirPrint and printers that support AirPrint here:

http://support.apple.com/kb/ht4356

If your printer supports AirPrint but does not work then:

Your printer might need a firmware update

Your printer must be on the same WiFi network

Your router must support Bonjour (Zero-configuration networking).

For troubleshooting:

Turn Off iPad, WiFi router (remove from power), and Printer (remove from power).

Turn on WiFi router

Wait 30 seconds

Turn on printer

Wait 30 seconds

Turn on iPad

Try to print.

If you need more help then what model Epson printer do you have?

"air print enabled?"

Lacks detail.

I'm not familair with the specific printer & its capabilities. What I would wonder:

Are you using something like Printopia which has a control panel

& needs to be activated in system preferences, as well as the printer turned on?

Some more information would help like what model Epson printer you have? It is on the same WiFi network? Etc.