var toprint = data.replace("intent:base64,",""); toprint = toprint.replace("#Intent;scheme=rawbt;package=ru.a402d.rawbtprinter;end;",""); var config = qz.configs.create(printerName); var printData = [{ type: 'raw', format: 'base64', data: toprint }]; qz.print(config, printData).catch(displayError);