Select your specific cutter or printer brand and model from the list.
Are you connecting your Flexi 8.1 setup to a or a wide-format printer ? flexi 8.1 install
Ensure the "Production Manager" is open. In Flexi 8.1, the design software communicates with the cutter through the Production Manager; if it’s closed, the "Send" command will fail. Select your specific cutter or printer brand and