Hi,
I have a xamarin android application using LinkOS that currently I was printing to ZT series printers using WiFi with no problems.

Now I got a new pocket printer ZQ230 that connects with bluetooth. It connects fine, and it prints fine when I send one line of ZPL code that comes with the sample in the sdk.

But when I print an actual label, which contains several lines, the media feeds one cm of paper, then stops, and beeps three times and the fault warn led stays on, and if I feed paper I keep getting the error. In order to erase it, i have to restart the printer.

There is nowhere in the manual or google that mention anything about three beeps error, and I've tried most of the things I can think so far.

I've changed the dimensions of the label design.
I've reduced the amount of data in the label design.
I've changed the Media Settings from the android Zebra Printer Utility.
Forced to be the width = 70mm and the height to be 40mm.
Media Type Continuous.
Media handling Tear Off.
When it Calibrates it prints a long blank label, and ends beeping three times, and the fault.

Any ideas what else could I check?