If the application doesn't allow you to print in landscape mode, then you can force it using the settings available in the printer's preferences menu. Go to File > Print > Preferences > Layout. Change the printing mode to Landscape, then accept the changes and print. Make sure that the printer is turned on and ready to print. To check for additional errors, go to Device Manager (Start > Run> devmgmt.msc) and make sure it's installed properly under the Printers category.