The power cord comes with the printer, no network cable does, there is no such thing as a WiFi cord.
If all you need is a network cable, you can buy them in pretty near any store from Walmart to a dollar store.
I cannot locate the wifi cord or the wireless adapter. I now see that the adapter is probably purchased seperately, but does the wifi cord come with the printer? It was not in the box. Help asap please. Thank you!