detect paper out by custumer with kr403  sdk java



For read status of kr403 I am using  :   usb.sendAndWaitForResponse("~HQES".getBytes(), 2000, 1000,new String(new byte[] { 0x03 }));


That I would like to do :


1 - the person pushes a button for print ticket

2 - if the person takes the ticket ->> barrier is open

     if  the person does not take the ticket ->> barrier is not open (and ticket is retract automaticaly)


How  to do this ? steps to analyse warning status ?


thanks very much



Didier P.