The Mrs just bought an HP photosmart something or other and I just have gone through the whole nightmare of connecting it via a USR wireless router.
It finaly worked after a days worth of grief and after I reduced the protection to WPA from WPA2. But in the process, I mucked up my internet access point so that was the main cause of grief.
It works great after I sorted that and managed to install the printer on three computers (each one involving a completely different proceedure).
Now come the fun part of pricing replacement cartidges
Having experienced sucess, I now have decided to connect a portable drive to the routers USB port.