Cashbox is not opening

[umar-ghaffar]

this is my code

AsyncEscPosPrinter printerData = printersData[0];

        try {
            DeviceConnection deviceConnection = printerData.getPrinterConnection();

            if(deviceConnection == null) {
                return new PrinterStatus(null, AsyncEscPosPrint.FINISH_NO_PRINTER);
            }
            EscPosPrinter printer = new EscPosPrinter(
                    deviceConnection,
                    printerData.getPrinterDpi(),
                    printerData.getPrinterWidthMM(),
                    printerData.getPrinterNbrCharactersPerLine(),
                    new EscPosCharsetEncoding("windows-1252", 16)
            );
            printer.useEscAsteriskCommand(true);

            this.publishProgress(AsyncEscPosPrint.PROGRESS_PRINTING);

            String[] textsToPrint = printerData.getTextsToPrint();

            for(String textToPrint : textsToPrint) {
                printer.printFormattedTextAndCut(textToPrint);
                Thread.sleep(500);
            }

            
            // here I am sending command to open cash box
            if(deviceConnection.isConnected()){
                deviceConnection.write(new byte[]{0x1B, 0x70, 0x00, 0x19, (byte) 0xFA});
                deviceConnection.send(100);
            }
            else{
                Log.d("printer connection", "device connection not connected");
            }
        } catch (EscPosConnectionException e) {
            e.printStackTrace();
            return new PrinterStatus(printerData, AsyncEscPosPrint.FINISH_PRINTER_DISCONNECTED);
        } catch (EscPosParserException e) {
            e.printStackTrace();
            return new PrinterStatus(printerData, AsyncEscPosPrint.FINISH_PARSER_ERROR);
        } catch (EscPosEncodingException e) {
            e.printStackTrace();
            return new PrinterStatus(printerData, AsyncEscPosPrint.FINISH_ENCODING_ERROR);
        } catch (EscPosBarcodeException e) {
            e.printStackTrace();
            return new PrinterStatus(printerData, AsyncEscPosPrint.FINISH_BARCODE_ERROR);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }