1､ 通过LookUpPrint查找

//设置打印属性 构造一个新的空打印请求属性集。                
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
pras.add(new Copies(3));//打印份数，3份
//设置打印数据的格式        DocFlavor.BYTE_ARRAY.PNG     MIME 类型 = "image/png"，打印数据表示形式类名 = "[B"（byte 数组）的 DocFlavor。
DocFlavor flavor = DocFlavor.BYTE_ARRAY.PNG;
//创建打印数据
Doc myDoc = new SimpleDoc(new File(""), flavor, null); 
//查找所有符合条件的打印服务                         lookupPrintServices(flavor, pras);查找能够打印指定 DocFlavor 的 PrintService。
PrintService[] printService = PrintServiceLookup.lookupPrintServices(flavor, pras);
//将所有查找出来的打印机与自己想要的打印机进行匹配，找出自己想要的打印机 
LookUpPrint p=new LookUpPrint();
PrintService myPrintService = p.GetPrintService("printName");
 //可以输出打印机的各项属性 
AttributeSet att = myPrintService.getAttributes(); 
for (Attribute a : att.toArray()) { 
    System.out.println("attributeName:"+a.getName()+ "     attributeValue:" +  att.get(a.getClass()).toString()); 
}
if (myPrintService != null) { 
    DocPrintJob job = myPrintService.createPrintJob();//创建文档打印作业 
    try { 
        job.print(myDoc, pras);//打印文档 
    } catch (Exception pe) { 
        pe.printStackTrace(); 
    } 
}else{
    System.out.println("no printer services found");
} 

2､通过PrintServiceLookup.lookupPrintServices查找打印

public void print()
  {
    PrinterJob printerJob = PrinterJob.getPrinterJob();
    Book book = new Book();
    book.append(new MyPrintTest(), printerJob.defaultPage());
    printerJob.setPageable(book);
    HashAttributeSet hs = new HashAttributeSet();
    String printerName="EPSON TM-U220 Receipt";
    hs.add(new PrinterName(printerName,null));
    PrintService[] pss = PrintServiceLookup.lookupPrintServices(null, hs);
    if(pss.length==0)
    {
      System.out.println("无法找到打印机:"+printerName);
      return ;
    }
    try
    {
      printerJob.setPrintService(pss[0]);
      printerJob.print();
    }
    catch (PrinterException ex)
    {
      System.out.println(ex.getMessage());
    }
  }

3､测试打印的代码

private static void doTest() {
    PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
    aset.add(Chromaticity.MONOCHROME);
    MediaSize isoA5Size = MediaSize.getMediaSizeForName(MediaSizeName.ISO_A5);
    float[] size = isoA5Size.getSize(Size2DSyntax.INCH);
    Paper paper = new Paper();
    paper.setSize(size[0] * 72.0, size[1] * 72.0);
    paper.setImageableArea(0.0, 0.0, size[0] * 72.0, size[1] * 72.0);
    PageFormat pf = new PageFormat();
    pf.setPaper(paper);
    PrinterJob job = PrinterJob.getPrinterJob();
    job.setPrintable(new WrongPaperPrintingTest(), job.validatePage(pf));
    if (job.printDialog()) {
        try {
            job.print(aset);
        } catch (PrinterException pe) {
            throw new RuntimeException(pe);
        }
    }
}