Can't find printer for AirPrint on iPad 1 or IPad 2

I have had my wireless Photohop all in one printer since last July and have been using AirPrint . Went to print from iPad 2days ago and now can't find printer. Haven't done anything to "disconnect" ran configuration report, all is fine. Wifii connection strong, no Bluetooth on, turned iPad off then on, unplugged printer...let set and plugged back in, has current updates. I am so frustrated. Only thing I can think of doing is deleting it and reinstalling. Router is new in Nov, 2012. Have been working on this for 2days and it is driving me..and a friend who has been helping me try to figure it out...CRAZY. We have looked up everything we can think of and tried everything all sites have suggested. Any advice.