Epson Stylus 2200 and Airport Extreme Printing
The Epson 2200 is not supported for use with the Airport Express/Airport Extreme Base Station with Epson's own printer driver.
It will work with the CUPS+Gimp-Print driver. Download and install Gimp-Print first if required.
Open Printer Setup Utility in the Utilities folder in Applications.
You will now be faced with a new window (you may already have printers listed).
Click the Add button.
If necessary change the dropdown box from Rendezvous (or USB or whatever) to IP Printing.
You should now see this window.
Change Printer Type to Socket/HP Jet Direct.
Add the IP address as 10.0.1.1 (assuming your Airport Express is at its default IP address).
Select the relevant Gimp-Print Printer Epson Stylus 2200 driver.