How to control and access Xprinter through USB in c#?

Hello,

 

I have a project of printing software but i have no idea that how to access the printer through c#? Actually, the printer is called Xprinter use for receipt's prints. 

Here's the images of printer:

 

https://www.google.com/search?q=xprinter&num=100&newwindow=1&safe=off&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjWtYvvtYHKAhVQvo4KHSiMBDQQ_AUICCgC&biw=1366&bih=634

 

And that printer connect through USB. Now, I can't understand that how can i send command to printer through USB? I have tried to much to access the USB port but i failed.

 

Please help me. 

 

Thanks,

Abrar