Estoy tratando de imprimir una imagen de 576 píxeles de ancho en una impresora térmica que admite comandos ESC, el problema es que el comando "ESC *" para imprimir bits de imágenes solo me permite imprimir imágenes de 255 píxeles de ancho (si uso un 576 imagen de píxeles algunas partes se imprimen y el resto son símbolos aleatorios), en la documentación dice que los comandos aceptan un máximo de 255 bytes como este:

ESC * m nL nH d1Ödk
Name Specify bit image mode 
Code ASCII ESC * m nL nHd1...dk 
 Hex. 1B 2A m nL nHd1...dk 
 Decimal 27 42 m nL nHd1...dk 
Defined Region m = 0,1,32,33 
 0 ≤ nL ≤ 255 
 0 ≤ nH ≤ 3 
 0 ≤ d ≤ 255 

Entonces, no sé cómo imprimir una imagen que tenga el ancho máximo de la página de la impresora (576 px), tengo este código que imprime la imagen:

public class ESCPOSApi {

    private final byte[] INITIALIZE_PRINTER = new byte[]{0x1B,0x40};

    private final byte[] PRINT_AND_FEED_PAPER = new byte[]{0x0A};

    private final byte[] SELECT_BIT_IMAGE_MODE = new byte[]{(byte)0x1B, (byte)0x2A};
    private final byte[] SET_LINE_SPACING = new byte[]{0x1B, 0x33};

    private FileOutputStream printOutput;

    public int maxBitsWidth = 255;

    public ESCPOSApi(String device) {
        try {
            printOutput = new FileOutputStream(device);
        } catch (FileNotFoundException ex) {
            Logger.getLogger(ESCPOSApi.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    private byte[] buildPOSCommand(byte[] command, byte... args) {
        byte[] posCommand = new byte[command.length + args.length];

        System.arraycopy(command, 0, posCommand, 0, command.length);
        System.arraycopy(args, 0, posCommand, command.length, args.length);

        return posCommand;
    }

    private BitSet getBitsImageData(BufferedImage image) {
        int threshold = 127;
        int index = 0;
        int dimenssions = image.getWidth() * image.getHeight();
        BitSet imageBitsData = new BitSet(dimenssions);

        for (int y = 0; y < image.getHeight(); y++)
        {
            for (int x = 0; x < image.getWidth(); x++)
            {
                int color = image.getRGB(x, y);
                int  red = (color & 0x00ff0000) >> 16;
                int  green = (color & 0x0000ff00) >> 8;
                int  blue = color & 0x000000ff;
                int luminance = (int)(red * 0.3 + green * 0.59 + blue * 0.11);
                //dots[index] = (luminance < threshold);
                imageBitsData.set(index, (luminance < threshold));
                index++;
            }
        }

        return imageBitsData;
    }

    public void printImage(BufferedImage image) {
        try {
            BitSet imageBits = getBitsImageData(image);

            byte widthLSB = (byte)(image.getWidth() & 0xFF);
            byte widthMSB = (byte)((image.getWidth() >> 16) & 0xFF);

            // COMMANDS
            byte[] selectBitImageModeCommand = buildPOSCommand(SELECT_BIT_IMAGE_MODE, (byte) 33, widthLSB, widthMSB);
            byte[] setLineSpacing24Dots = buildPOSCommand(SET_LINE_SPACING, (byte) 24);
            byte[] setLineSpacing30Dots = buildPOSCommand(SET_LINE_SPACING, (byte) 30);


            printOutput.write(INITIALIZE_PRINTER);
            printOutput.write(setLineSpacing24Dots);

            int offset = 0;
            while (offset < image.getHeight()) {
                printOutput.write(selectBitImageModeCommand);

                int imageDataLineIndex = 0;
                byte[] imageDataLine = new byte[3 * image.getWidth()];

                for (int x = 0; x < image.getWidth(); ++x) {

                    // Remember, 24 dots = 24 bits = 3 bytes.
                    // The 'k' variable keeps track of which of those
                    // three bytes that we're currently scribbling into.
                    for (int k = 0; k < 3; ++k) {
                        byte slice = 0;

                        // A byte is 8 bits. The 'b' variable keeps track
                        // of which bit in the byte we're recording.
                        for (int b = 0; b < 8; ++b) {
                            // Calculate the y position that we're currently
                            // trying to draw. We take our offset, divide it
                            // by 8 so we're talking about the y offset in
                            // terms of bytes, add our current 'k' byte
                            // offset to that, multiple by 8 to get it in terms
                            // of bits again, and add our bit offset to it.
                            int y = (((offset / 8) + k) * 8) + b;

                            // Calculate the location of the pixel we want in the bit array.
                            // It'll be at (y * width) + x.
                            int i = (y * image.getWidth()) + x;

                            // If the image (or this stripe of the image)
                            // is shorter than 24 dots, pad with zero.
                            boolean v = false;
                            if (i < imageBits.length()) {
                                v = imageBits.get(i);
                            }
                            // Finally, store our bit in the byte that we're currently
                            // scribbling to. Our current 'b' is actually the exact
                            // opposite of where we want it to be in the byte, so
                            // subtract it from 7, shift our bit into place in a temp
                            // byte, and OR it with the target byte to get it into there.
                            slice |= (byte) ((v ? 1 : 0) << (7 - b));
                        }

                        imageDataLine[imageDataLineIndex + k] = slice;

                        // Phew! Write the damn byte to the buffer
                        //printOutput.write(slice);
                    }

                    imageDataLineIndex += 3;
                }

                printOutput.write(imageDataLine);
                offset += 24;
                printOutput.write(PRINT_AND_FEED_PAPER);
            }


            printOutput.write(setLineSpacing30Dots);
        } catch (IOException ex) {
            Logger.getLogger(ESCPOSApi.class
                    .getName()).log(Level.SEVERE, null, ex);
        }
    }
}

Quiero usar la densidad doble de 24 puntos, pero por ahora estoy usando la densidad sigle de 24 puntos con imágenes de 255 píxeles (esto me permite imprimir imágenes en todo el ancho de página, pero necesito doble densidad)