How to increase the size of QR code image – print that is compatible with ESC/POS commands

I have successfully print the QR and Text – Print out image given below

Issue – How to Increase the size of QR code image

First QR is my Output!! Need to increase like in the Second QR

My code:

 byte[] INIT = {27, 64};
 byte[] FEED_LINE = {10};
 byte[] SELECT_FONT_A = {27, 33, 0};
 byte[] ALLINEA_CT = {0x1B, 0x61, 0x01};
 byte[] ALLINEA_SELECT = {0x1b, 0x3d, 0x01};
 byte[] FONT_1X = {0x1D, 0x21, 0x00};
 byte[] SET_BAR_CODE_HEIGHT = {29, 104, 100};

                    OutputStream oStream = sock.getOutputStream();
                    oStream.write(INIT);
                    oStream.write(ALLINEA_CT);
                    oStream.write(SET_BAR_CODE_HEIGHT);
                    oStream.write(ALLINEA_CT); 
                    oStream.write(ALLINEA_SELECT);
                    oStream.write(command); //command is byte[] command (QR code)
                    oStream.write(FEED_LINE);

                    oStream.write(ALLINEA_CT); //text to center
                    oStream.write(SELECT_FONT_A);
                    oStream.write(FONT_1X);
                    oStream.write("TABLE : ".getBytes());
                    oStream.write(strTable.getBytes());
                    oStream.write(FEED_LINE);

                    oStream.write(new byte[]{0x1D, 0x56, 0x41, 0x10});
                    oStream.flush();
                    oStream.close();
               

Please let me know how to increase the size of QR.

Answer

Not able to increase the size more than 255px with the above way.

Finally solved the size issue by this library

implementation 'com.github.DantSu:ESCPOS-ThermalPrinter-Android:3.0.0'

Code

EscPosPrinter printer = new EscPosPrinter(deviceConnection, 203, 48f, 32);
                    printer
                            .printFormattedText(
                                    "[C]<qrcode size='50'>"+strQr+"</qrcode>n" +
                                            "[C]n" +
                                            "[C]<font size='tall'>Table No : "+strTable+"</font>n"
                            );

You can increase/decrease the size of QR by change the value of size inside <qrcode> tag