I need to print a web page using an android and bluetooth receipt printer.  I connected the printer to my android phone and I used window.print(); method.  It needs a third party application to connect my bluetooth receipt printer. I installed it and tried to print. It prints but is very slow.  I try to long press on the text in my phone and show a popup menu. Its show print command and its print very speedly. I need to call this print command via javascript. How do I do It?