AirPrint is not working since 9.3.1 update-no AirPrint found. tried suggestion from JimHdk that worked for one document. any suggestions

Since we don't know what Jim may have suggested, power cycle your router and the printer and force restart the iPad. Unplug the router and the printer from power for about 30 seconds. Plug the router in first and let it restart. Then plug the printer back into power. Then force restart the iPad. To force restart your device, press and hold both the Sleep/Wake and Home buttons for at least ten seconds, until you see the Apple logo.