on the computer with the printer installed... START > SETTINGS > PRINTER
right click on the printer and goto sharing and share the printer on the network....

on the other computers on the network that want to access the printer (make sure they all have the same workgroup name)... install the drivers for the printer.. the app might ask you if the printer is networked.. if it does, follow the directions.. if it doesnt, after installing... goto START > SETTINGS >PRINTER... and click on ADD A PRINTER.. follow directions