public String stringPrint(String printerName, String conte) {
        String res = "";
        PrintServiceAttributeSet printServiceAttributeSet = new HashPrintServiceAttributeSet();
        printServiceAttributeSet.add(new PrinterName(printerName, null));
        PrintService printServices[] = PrintServiceLookup.lookupPrintServices(null, printServiceAttributeSet);
        if (printServices.length != 1) {
            return "Can't  select printer :" + printerName;
        }
        byte[] printdata = conte.getBytes();
        System.out.println(printdata + "\n");
        PrintService pservice = printServices[0];
        DocPrintJob job = pservice.createPrintJob();
        DocFlavor flavor = DocFlavor.BYTE_ARRAY.AUTOSENSE;
        Doc doc = new SimpleDoc(printdata, flavor, null);
        PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
        try {
            job.print(doc, aset);

        } catch (Exception e) {
            res = e.getMessage();

        }
        return res;

    }