We have 4 computers in our house. Three are currently wireless, one hardwired. We have one printer that is connected with wires to one of the wireless computers. Right now, we can only print using that one computer. So if we are working on one of the other computers, we have to save the file and email it to ourselves and go open it on the “printing” computer. How can I print from the other three computers? Is there a way to link it all now or do I need to go buy some more equipment for the printer? Or do only certain printers have these capabilities?