[SOLVED] Scanner Issues (not detected)

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http://ubuntuforums.org – I have a HP deskjet 3050 which is a printer/scanner. The printer was added to my network using a WPS pin through my router. The printer works fine, it is detected on my network and prints in Ubuntu12.04. However when I try to scan with Simple Scan (for example) I get a message "No scanner detected". When I attach the printer/scanner through the USB directly, it is detected imediately and scans fine. So... How do I get this scanner recogonized through the network? I've tried other scanner programs (Skanlite and AcquireImages), with the same results. Thanks for your help. (Hardware)