Expert's answer

You say the hard wired computer is connected to the printer by a cable though the router so I am assuming this is a network printer. One way to print from the wireless computer is to share the printer from the computer that is hard wired so that the wireless computer can print to the printer by using the shared printer on the hard wired computer. To share the printer on a windows machine you highlight the printer in the printer list, right-click to bring up the menu, choose Properties, select the Sharing tab, and choose the "Share this Printer" option. After that you can connect from the wireless computer to the hard wired computer and select the shared printer and print a test page. After that you should be able to use the printer at will.

Another way to print is directly to the network printer, but first you need to make sure that your router will pass wireless traffic on the port number used by the printer over to the printer and then you can set the wireless computer up the same way the hard wired computer is set up to print to the printer. If the printer has an IP address assigned you can use the ping command to verify that your wireless computer can connect to the printer.

If you can not seem to make the connection to the printer you may need to review the instructions for your router and make some changes to the settings to enable network traffic to reach the printer from the wireless computer.