C# 使用Epson T20II收据打印机打印阿拉伯字符

我正在使用MicrosoftPOSSDK1.12和EpsonOPOSADK1.12.22开发一个带有.NET4.5的WPF桌面POS应用程序

我尝试打印到Epson T20II收据打印机，代码工作正常，但当我尝试打印阿拉伯语字符时，它显示的字符是分开的，而不是像这样串联的：-

正确的短语：مب㶎كهب㶊ي

印刷品：باحكه㶕㶊1610;

我已经将SetupPos中设置的字符设置为997（Unicode）以下是我的代码：

string receiptTime = receipt.ReceiptTime.ToString("dddd dd/M/yyyy  H:m:s");
printer.PrintNormal(PrinterStation.Receipt, "\u001b|cA" + receiptTime + "\n\n");
//Print items
foreach (ReceiptsItem receiptItem in receipt.ReceiptsItems)
{
    printer.PrintNormal(
        PrinterStation.Receipt, 
        string.Format("{0} X {1} \u001b|rA{2}\n",
            receiptItem.Package.Item.Name, 
            receiptItem.Quantity, receiptItem.Total));
}

printer.PrintNormal(PrinterStation.Receipt, "\n");

//Print the total cost
//\u001b|bC = Bold
//\u001b|uC = Underline
//\u001b|2C = Wide character

printer.PrintNormal(PrinterStation.Receipt, "\u001b|bC"
    + "Total:\u001b|rA" + receipt.TotalWithoutDiscount + "\n");

printer.PrintNormal(PrinterStation.Receipt, "\u001b|bC"
    + "Discount:\u001b|rA" + receipt.DiscountValue + "\n");

printer.PrintNormal(PrinterStation.Receipt, "\u001b|bC"
    + "Net Amount:\u001b|rA" + receipt.TotalPrice + "\n");

printer.PrintNormal(PrinterStation.Receipt, "\u001b|bC" +
    "Customer's Payment:\u001b|rA" + receipt.Paid + "\n");
printer.PrintNormal(PrinterStation.Receipt, "\u001b|bC" +
    "Remaining:\u001b|rA " + receipt.Remaining + "\n\n \u001b|N");

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你找到解决这个问题的办法了吗？