I set up an Airport Express Base and with the usb plugged in with a canon printer. The green light is on, on the base, Airport Utility recognizes the printer and in system preferences the printer says ready. I had to delete then reload the printer to get it to say it was ready and not offline. When I try to print, the printer box comes up and shows the printer online and beginning to print and then the the printer changes and says it is not online anymore. When I cancel the printing it goes back to saying its ready and online. I don't know if this has anything to do with bonjour but, I did a search on my Mac with Lion OS X 10.7.2 and cannot find anything resembling an app or file called bonjour. Also I have tired all the turning off the printer, unplugging the base and all those types of things. Can any one help?