Hi jgharvey,
Sorry to hear about the power connection not working properly for your printer. The document below has step-by-step instructions on how to try to fix power related issues - hope it helps fix the troubles with your printer.
If that doesn't work, you can contact HP support in North America at 1-800-474-6836 or find the local telephone number for your country here: http://welcome.hp.com/country/w1/en/support.html Please look for the category "Technical Support After you Buy"
Regards