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04-10-2012 08:57 PM
It would help to know what operating system and router. Nevertheless, let's try this:
If Windows, go to Control Panel > Printers and delete all instances of thsi printer.
Next, go to Start > All Programs > HP > [your printer model] > Add a Device. Follow the instructions. Make sure a USB cable is NOT connected when you start this process. The software will ask you to connect a USB cable during the re-installation.
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