Java: printing file doesn't work

I use Java 1.6 (JDK), Windows 7 and a virtual image printer driver.

I try to print some documents.

Here is my code

try {    

   System.out.println(" PrintServiceOver开发者_C百科seer printFileToDefaultPrinter start "+ 
      fileName);            

   PrintService printService = PrintServiceLookup.lookupDefaultPrintService();

   System.out.println(" default Printer " + printService.getName());

   FileInputStream inputStream = new FileInputStream(new File(fileName));  

   DocFlavor docFlavor = DocFlavor.INPUT_STREAM.AUTOSENSE;   

   Doc printDoc = new SimpleDoc(inputStream, docFlavor, null);

   PrintRequestAttributeSet  pras = new HashPrintRequestAttributeSet();
   pras.add(new Copies(1));   

   DocPrintJob printJob = printService.createPrintJob();

   printJob.print(printDoc, pras);

   inputStream.close();    

   System.out.println(" PrintServiceOverseer printFileToDefaultPrinter end "); 
} catch (Exception ex) {
        ex.printStackTrace();
}

But it doesn't work. It prints nothing and no exception is thrown. The code compiles and runs smoothly, but there is no output.

Can you give me some guidance?

I got the same problem, I solved it by updating my printer's driver, I think you didn't install the proper driver, you may installed a driver which works for your printer but not the proper one.