Make sure you don't have a pop-up blocker and open the pedigree you wish to print

Choose "file" and "print setup" from the dropdown menu

Choose the "Format & Options" tab from the page setup box

Choose "Landscape"

Choose "Print background (colors and images)"

Choose the other tab "Margins & Header/Footer"

Change all header and footer options to "blank"

Save your changes by choosing "ok". Then choose the "print" button from the upper left corner