Printing

I have been trying to get my stepdad's iPad 4 to print on an AirPrint machine. However when I go to tap on the print icon it isn't the usual icon of an actual printer but is a cloud shape icon. I'm not sure what's going on, but I don't get my printed documents. I have successfully printed the same documents on the same printer from my iPad 4. Does anyone know what's happening and how to sort it out. Many thanks.