I can't remember where the option is. I think it is in the printer setup. Try that first, then if not try the home network wizard.
To try in printer area, go to control panel/ printers and click on the printer icon. Try in properties and see if there is a "sharing" option.
If not, ask to install a new printer, one of the questions may be "do you want to share this printer," say yes and follow instructions.
If it isn't there since you share net connection you must know about home network wizard. Turn both computers on, connect to the internet, run the wizard on the internet connected machine, then run it on the other machine. Watch for printer sharing options.