Hello jbsailor,
Please perform the below mentioned steps...
1> Unplug the power cord from back of the printer while the printer is ON.
2> Also disconnect any other cables connected to the printer.
3> Power OFF the wireless Router.
4> Wait for full 60 seconds.
5> Plug in the printer power cord directly to a walloutlet ( bypass surge / power strip ), and connect the other end to Printer.
5> Printer should power ON automatically, else press the ON button to do so.
6> Make a standalone Copy.
7> Power ON the wireless router.
If issue still persists, then please call HP Tech Support for further assistance.
If you are in US , the toll free # is 1-800-474-6836 .
If you are not in US , then log on to www.hp.com , at bottom-left corner there is a world map icon, click on it and then select the region you belong to, which would then provide support options for you for that region.