Unfortunately the HP LaserJet 3050z All-in-One Printer is no longer sold or supported by the manufacturer. In other words there is no installation CD for it to work with the supposedly new operating system - Windows Vista.
You can ignore my post (Response number 2) and use Pater's link instead I googled for HP LaserJet 3050z All-in-One Printer and came across the notation that the AIO is a Discontinued product models and is no longer supported. Pater posted drivers related to HP LaserJet 3050 (minus the z letter).
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