How to send data to a POS (thermal) printer via bluetooth in my android App (Gingerbread)

Hi all,
I am developing an app which will send data to a printer via bluetooth to print (A thermal printer for receipts). I have followed the code which in this link.

pastie.org/6203514 and this link also pastie.org/6203516

I am able to see the device and its MAC Address and its name, when I send the data to the printer (the light LED on the printer stops blink and becomes standard i.e the printer is connected with my android phone) but when I send the data it is not printing and nor it is giving any error also. I have googled a lot and I found many codes and tried all set of codes but could not able to print .

Please any one could help me out of here. I heard with Intents it can be done easily but could not get the exact solution with Intents.

Any help would be appreciated

Thanks in Advance
Ganesh