GK420T is skipping labels between printing

I am using Zebra Browser Printing, to print the label and QR code on the label using a web app, it is skipping labels in between,

 

For Example:

 

If I am printing 8 labels using web app, it prints 2 labels then skips 2 labels and then prints 2 labels and skips 2 labels, then prints 1 label and skips 1 label every time .

 

Below is my code:

^XA

^LT0^MNM

^FO10,5

^FO90,20^ADN,8,8^FD

^FS^FO90,40^ADN,8,14^FD

^FS^FO0,15^BQ,2,4^FDQA,

^FS^FO90,60^ADN,8,14^FD

^FS^FO10,120^ADN,8,14^FD

^FS^FO10,140^ADN,8,14^FD

^FS^FO90,80^ADN,8,14^FD

^FS^XZ";

 

Regards,

Naseer