熱敏收據打印機問題削減

Question

我就吃了一點問題，通過熱敏打印機打印字符串...

它正常打印字符串的內容，但它不是自動切割紙張，它保存在打印機中，而不是放在打印機中。

--CODE--

receipt = "Table #"+rs.getInt("table_id")+"\n\n" 
        + "Food\t\tAdd\t\tRemove\n\n"; 

String defaultPrinter = PrintServiceLookup.lookupDefaultPrintService().getName(); 
System.out.println("Default printer: " + defaultPrinter); 
PrintService service = PrintServiceLookup.lookupDefaultPrintService(); 

InputStream is = new ByteArrayInputStream(receipt.getBytes("UTF8")); 

DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE; 
Doc doc = new SimpleDoc(is, flavor, null); 
DocPrintJob job = service.createPrintJob(); 
PrinterJob printJob = PrinterJob.getPrinterJob(); 


job.print(doc, null); 
is.close(); 

什麼想法？

Answer 1

你應該做的方式如下：

DocPrintJob job = PrintServiceLookup.lookupDefaultPrintService().createPrintJob(); 
byte[] bytes = {27, 100, 3}; 
DocFlavor flavor = DocFlavor.BYTE_ARRAY.AUTOSENSE; 
Doc doc = new SimpleDoc(bytes, flavor, null); 
job.print(doc, null);