Cannot print to epson WF-3540
The printer must be "AirPrint" compatible: http://support.apple.com/kb/HT4356
If it isn't, then you could check out an app called Printopia which will create this functionality using a computer. Also, check to see if Epson offers an app that will interface with the printer.
It is air print capable, just will not print
Using Printopia should NOT be necessary and shouldn't be the solution.
Perhaps someone else can chime in who has gotten the 3540 working with AirPrint.
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