Android SDK

I have a simple web application hosted on my web server. I have purchased a Bluetooth Thermal Printer. The printer comes with its own android SDK and a sample program. The printer is connected to the Tablet/Mobile with an ITG Cable. The sample program works fine and prints on the Thermal Printer. I am looking for a way I can print from the web directly to the Thermal Printer using chrome on android. The freelancer is expected to suggest a solution to this including the necessary programming for the solution. I wish to use my existing web application and do not wish to rebuild the complete application as a new android application. Need some client side connectivity using SDK so that printing can be done from Chrome Browser to Thermal printer.