Arabic String not work with thermal printer

I use this function to add Persian text :

.setText("سلام : HELLO")
.setEmphasizedMode(DefaultPrinter.EMPHASIZED_MODE_BOLD) //Bold or normal
.setFontSize(DefaultPrinter.FONT_SIZE_NORMAL)
.setUnderlined(DefaultPrinter.UNDERLINED_MODE_OFF) // Underline on/off
.setCharacterCode(byte) // Character code to support languages
.setLineSpacing(DefaultPrinter.LINE_SPACING_30)
.setNewLinesAfter(1)
printableList.add(printable.build())```

But only some incomprehensible text is printed.

[ZakariaJawas]

@iman2420 Finally I was able to fix this by passing a custom converter, it was already built with the library ArabicConverter() like this .setCustomConverter(ArabicConverter()) It is worth mentioning that CP864 codepage value might be different from printer company to another, CHARCODE_ARABIC_CP864 in the library equals to 0x0E, but with my printer company it was 22 inside their codepage table so you might need to check your printer documentation, then pass the custom character code like this .setCharacterCode(22)

[ahmedsaber00]

جرب كده

public static byte[] POS_Print_Text(String pszString, String encoding, int codepage, int nWidthTimes, int nHeightTimes, int nFontType) {
        if (codepage < 0 || codepage > 255 || pszString == null || pszString.length() < 1) {
            return null;
        }
        try {
            byte[] pbString = pszString.getBytes(encoding);
            Command.GS_ExclamationMark[2] = (byte) (new byte[]{0, 16, 32, 48}[nWidthTimes] + new byte[]{0, 1, 2, 3}[nHeightTimes]);
            Command.ESC_t[2] = (byte) codepage;
            Command.ESC_M[2] = (byte) nFontType;
            if (codepage == 0) {
                return Other.byteArraysToBytes(new byte[][]{Command.GS_ExclamationMark, Command.ESC_t, Command.FS_and, Command.ESC_M, pbString});
            }
            return Other.byteArraysToBytes(new byte[][]{Command.GS_ExclamationMark, Command.ESC_t, Command.FS_dot, Command.ESC_M, pbString});
        } catch (UnsupportedEncodingException e) {
            return null;
        }
    }

printable.add(
            RawPrintable.Builder(
                PrinterCommand.POS_Print_Text(
                    "الأسم:\n",
                    ARABIC, 22, 0, 0, 0
                )
            ).build()
        )

    const val ARABIC = "ISO-8859-6"