I am trying to use the Android SDK to print an image on a ZD230 printer. I am only getting blank sheets. The code I am using is below:

Bitmap myBitmap = Media.getBitmap(getContentResolver(), uri)
 

Connection connection = getZebraPrinterConn();
connection.open();

//connection.write("! U1 setvar \"device.languages\" \"zpl\"\n".getBytes());
ZebraPrinter printer = ZebraPrinterFactory.getInstance(connection);

printer.printImage(new ZebraImageAndroid(bitmap), 0, 0, -1, -1, false);

The sheet moves forward but there is no image. Text works fine. 

Please help with how to proceed in fixing this issue.

Thanks.