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Thermal printer not response

1

``` import { BluetoothSerial } from '@awesome-cordova-plugins/bluetooth-serial/ngx'; @Component({ selector: 'app-home', templateUrl: 'home.page.html', styleUrls: ['home.page.scss'], }) export class HomePage { MAC = 'DC:0D:30:12:11:15'; // this is bluetooth printer mac address constructor(private...