Printooth library, label feed control issue

问题

I am new in Android development. The following bloc is part of my APP's code, it does a simple job of select two columns of information from a local sqlite database's table, filter it by a scanned barcode and print the information retrieved plus the current date.

My issue is the label feed control. Printer only execute Android APP's command when in ESC/POS mode, and doesn't stop the label paper in the right position for the next label to be printed. If anyone have ever made something similar which also controls thermal printer's paper feed by software, please share your experience.

Make and model of the printer I am using: Toshiba B-EP4DL

private void printText() {
    ArrayList<Printable> printables = new ArrayList<>();
    printables.add(new RawPrintable.Builder(new byte[]{27, 100, 4}).build());

    myDb.setBarcodcheck(String.valueOf(barcodefield.getText()));
    Cursor res = myDb.getAllData();
    if (res.getCount() == 0) {
        showMessage("Error", "Nothing Found");
        return;
    }
    StringBuffer buffer = new StringBuffer();
    while (res.moveToNext()) {
        buffer.append("LOCATION: "+ res.getString(0)+"\n");
        buffer.append("APPROVED: "+ res.getString(1)+"\n");
        buffer.append("DATE: "+date+"\n");
    }

    printables.add(new TextPrintable.Builder()
            .setText(buffer.toString())
            .setCharacterCode(DefaultPrinter.Companion.getCHARCODE_PC1252())
            .setLineSpacing(DefaultPrinter.Companion.getLINE_SPACING_60())
            .setEmphasizedMode(DefaultPrinter.Companion.getEMPHASIZED_MODE_BOLD())
            .setFontSize(DefaultPrinter.Companion.getFONT_SIZE_LARGE())
            //.setNewLinesAfter(1)
            .build());

    Printooth.INSTANCE.printer().print(printables);
}

来源：https://stackoverflow.com/questions/60114412/printooth-library-label-feed-control-issue