how can i hide printerjob dialog when i try to print?

Question

i hope you're doing great. So i'm having a problem with my printing method. i used printerjob to print some papers records from my java application, and the printing dialog is showing twice everytime, after i click okey to print it shows again, and is there a way i can hide it all ? printing would start diractly after the user click ?

    public void print(JPanel paneltoprint){
    PrinterJob printer = PrinterJob.getPrinterJob();
    printer.setJobName("print attestation");
    
    printer.setPrintable(new Printable() {
        @Override
        public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
           if(pageIndex > 0){
               return Printable.NO_SUCH_PAGE;
           }
           
           Graphics2D g2d = (Graphics2D) graphics;
           g2d.translate(pageFormat.getImageableX()*3, pageFormat.getImageableY()*3);
           g2d.scale(0.7, 0.7);
           paneltoprint.paint(g2d);
           return Printable.PAGE_EXISTS;
           
        }
    });
    boolean returnResult = printer.printDialog();
    if(returnResult){
        try {
            printer.print();
        } catch (PrinterException ex) {
            Logger.getLogger(Attestation.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}