title: Zebra ZT410 ZPL Clear buffer command
body: <p>The "~JA" command, as stated in ZPL Programming Guide vol.2, cancels all commands in the buffer. </p>
  
  <p>We were using the ~JA at the start of every PRN file and it worked as intended on ZM400 and ZE500 models. The goal is to have only one printout in case multiple prints are triggered. So if I press "Print" 3 times, only the third label prints out.</p>
  
  <p>I have tried:<br/>
  - introducing the ~JA command through Zebra Designer interface <br/>
  - introducing the ~JA manually in the PRN at the start of the PRN file as ~JA~; ~~JA~; ~JA<br/>
  No luck. On the ZT410 nothing prints out, the printer just hangs there with the data led blinking. </p>
  
  <p>Any ideas? </p>