Support for Posiflex Thermal Printers in a Rails app

Hi,

I need to print receipts generated by my rails app on a thermal paper
roll
https://www.google.co.in/search?q=thermal+paper+roll&espv=2&es_sm=91&biw=1301&bih=431&tbm=isch&tbo=u&source=univ&sa=X&ei=t9sPVJrRKpTkuQSMkoLYDA&ved=0CCYQsAQ#facrc=_&imgdii=_&imgrc=mhENLY9_zDDVcM%3A%3Bd5OUP6F_8_ywLM%3Bhttp%3A%2F%2Fpaperrollsplus.com%2Fmedia%2Fcatalog%2Fcategory%2Fthermal_paper.jpg%3Bhttp%3A%2F%2Fpaperrollsplus.com%2F%3B1300%3B1300
(size:
3 1/8’’ x 230’).

Has any one tried using Escapr
https://github.com/michaelfranzl/ruby-escper gem for this? Please
guide
if there are better ways to achieve this.

Thanks.

Regards,
Ankur