I have a requirement to print PDF through a background job in the application. I am planning to set up a Job scheduler and invoke a activity. However this code only seems to connect to a printer but unable to print. any ideas?

java.net.Socket socket = null;
java.net.InetAddress addr = null;
java.net.InetSocketAddress socketAddress = null;
java.io.BufferedReader reader= null;
java.io.BufferedWriter writer= null;
java.io.InputStream input = null;
java.io.OutputStream output= null;

int port =9100;
int timeout=5000;
byte[] bodyBytes = null;
//byte[] modifiedBodyBytes = null;
//String bodyString = null;

try{

    addr = java.net.InetAddress.getByName(hostName);
    socket = new java.net.Socket(addr, port);
    socket.setSoTimeout(timeout);
  
    bodyBytes = new com.pega.pegarules.pub.util.Base64Util().decodeToByteArray(pyStream);
    oLog.infoForced("TestPrinter bodyBytes length "+bodyBytes.length);
   // BodyString = new String(bodyBytes, "US-ASCII");
   // modifiedBodyBytes= BodyString.getBytes("US-ASCII");

    output = socket.getOutputStream();
      oLog.infoForced("TestPrinter output stream "+output);
     
    input = socket.getInputStream();
    oLog.infoForced("TestPrinter input stream "+input);
    
      // kick it out
    output.write(bodyBytes);
    output.flush();
    oLog.infoForced("TestPrinter output stream "+output);
  
    socket.shutdownOutput();
  
    reader = new java.io.BufferedReader(new java.io.InputStreamReader(input)); 
    oLog.infoForced("TestPrinter read input stream "+reader);
    printerResponse = reader.readLine();
    oLog.infoForced("TestPrinter printer response "+printerResponse);
    
    status = "success";
    }
  catch (Exception e) {
  e.printStackTrace();
    //oLog.error("TestPrinter Error in sending to printer ");
  oLog.error("TestPrinter"+e);

  status = "fail";
}
finally {
    if (input != null) try { input.close();oLog.infoForced("TestPrinter closed input stream ");} catch (Exception e) {oLog.infoForced("TestPrinter Issue closing input stream ");   }
  if (socket != null) try { socket.close(); oLog.infoForced("TestPrinter closed socket connection ");} catch (Exception e) {oLog.infoForced("TestPrinter Issue closing socket ");   }
    if (output != null) try { output.close(); oLog.infoForced("TestPrinter closed output stream ");} catch (Exception e) {oLog.infoForced("TestPrinter Issue closing output stream ");}
}