I have a photosmart 7520 which has been registered with HP and have an email address. I have associated that with google cloud print. When I try to print anything from my Chromebook. the cloud print queue indicates that it has printed but nothing appears. When I print the wireles test report it tells me I have 2 networks with the same SSID but I don't think I have.
I have had some prints from the 7520 but it is hit and miss - more often a miss. I have restarted my router and restored the factory defaults to start installation all over again but to no avail.