https://javafx-jira.kenai.com/browse/RT-35414

PrintTest.java

import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.print.PrinterJob;
import javafx.scene.Scene;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.Pane;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;

public class PrintTest extends Application {

	private Pane root;

	public static void main(String[] args) {
		launch(args);
	}
	
	@Override
	public void start(final Stage primaryStage) throws Exception {
		root = new Pane();
		root.setOnMouseClicked(new EventHandler<MouseEvent>() {
			@Override
			public void handle(MouseEvent e) {
				PrinterJob printerJob = PrinterJob.createPrinterJob();
				System.out.println("Printing...");
				if (printerJob.showPrintDialog(primaryStage.getOwner()) && printerJob.printPage(root)) {
					System.out.println("Print successful."); // <-- this line is never reached on OS X
					printerJob.endJob();
				}
			}
		});
		
		Rectangle r = new Rectangle();
		r.setX(50);
		r.setY(50);
		r.setWidth(200);
		r.setHeight(100);
		r.setArcWidth(20);
		r.setArcHeight(20);
		root.getChildren().add(r);
		
		Scene scene = new Scene(root, 800, 600);
		primaryStage.setScene(scene);
		primaryStage.show();
	}
	
}