BufferedImage img = new BufferedImage(300, 300, BufferedImage.TYPE_INT_RGB);
    Graphics g = img.createGraphics();
    g.setColor(Color.BLACK);
    g.fillRect(0, 0, 300, 300);

    DocFlavor psInFormat = DocFlavor.INPUT_STREAM.JPEG;
    ByteArrayOutputStream outstream = new ByteArrayOutputStream();
    try {
        ImageIO.write(img, "jpg", outstream);
    }
    catch (IOException e) {
        e.printStackTrace();
    }
    byte[] buf = outstream.toByteArray();
    InputStream stream = new ByteArrayInputStream(buf);
    Doc myDoc = new SimpleDoc(psStream, psInFormat, null);
    PrinterResolution printerResolution = new PrinterResolution(300, 300, PrinterResolution.DPI);
    PrintRequestAttributeSet attr = new HashPrintRequestAttributeSet();
    attr.add(printerResolution);
    attr.add(PrintQuality.HIGH);
    PrintService services = PrintServiceLookup.lookupDefaultPrintService();
    DocPrintJob job = services.createPrintJob();
    try {
        job.print(myDoc, aset);
    }
    catch (PrintException pe) {
        pe.printStackTrace();
    }