我用下面的代码打印

import java.io.IOException;

import android.app.Activity;

import android.app.AlertDialog;

import android.content.Context;

import android.os.Bundle;

import android.util.Log;

import android.view.Menu;

import com.iPrint.iObject;

import com.iPrint.iPaperType;

import com.iPrint.iPrint;

import com.iPrint.iPrinters;

import com.iPrint.iSettings;

import com.iPrint.ipConnection;

public class MainActivity extends Activity {

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

iSettings set = new iSettings();

set.SetPaperType(iPaperType.LETTER);

set.PrinterType(iPrinters.HP);

//Creating Connection object

ipConnection wfc = new ipConnection();

wfc.ipAddress("IP-Address");

wfc.Port(port-number);

try {

wfc.Connect();

Log.e("Connected", wfc.isConnected()+"");

} catch (IOException e) {

// TODO Auto-generated catch block

Log.e("In Error", "In Error");

e.printStackTrace();

}

//Creating a Printing object

iPrint p = new iPrint(getApplicationContext());

p.Connection(wfc);

p.Settings(set);

if (wfc.isConnected())

{

p.Start();

iObject ob = new iObject();

ob.Text("Hello iPrint!");

p.Add(ob);

p.End();

p.Print();

ob = null;

}

else

{

Log.v("Error",wfc.ErrorMessage()+"");

//showDialog(wfc.ErrorMessage(), AppContext);

}

print(getApplicationContext());

}

private void print(Context AppContext)

{

//Creating Settings object

iSettings set = new iSettings();

set.SetPaperType(iPaperType.LETTER);

set.PrinterType(iPrinters.HP);

//Creating Connection object

ipConnection wfc = new ipConnection();

wfc.ipAddress("ip-address");

wfc.Port(port-number);

try {

wfc.Connect();

} catch (IOException e) {

// TODO Auto-generated catch block

Log.e("In Error", "In Error");

e.printStackTrace();

}

//Creating a Printing object

iPrint p = new iPrint(AppContext);

p.Connection(wfc);

p.Settings(set);

if (wfc.isConnected())

{

p.Start();

iObject ob = new iObject();

ob.Text("Hello iPrint!");

p.Add(ob);

p.End();

p.Print();

ob = null;

}

else

{

Log.v("Error",wfc.ErrorMessage()+"");

}

set = null;

wfc = null;

p = null;

}

}

添加iprint.jar，我已经做了这种方式。