Cordova printer plugin not working

http://ngcordova.com/docs/plugins/printer/

This plugin is not working in serial printer device

Device name : Android POS terminal GC068

It is showing print page. But not performing print operation.

Hi,
similar problem. Have you found a solution for that?

Greets

We should use custom sdk developed by device manufacture

How to do that? Any idea?
Thanks in Advance