My husband and I each have our own laptop that we use wirelessly. We also have a wireless printer - HP Photosmart C4580. Both of us are able to print successfully. However, on my husband's laptop no scanner is listed when he accesses scanners and printers thru the control panel. It is only showing up on my laptop. Since it is all all-in-one unit, and he is able to execute a print command, why wouldn't the scanning process also work?