Question

我需要使用C＃通过WLAN将.cpf（字体类型）文件发送到QLN 320 zebra打印机。请有人帮忙。

由于 Midhun

Answer 1

试试这个：

string sFileName; //file name in DOS format (8.3)
byte[] baBody; //byte array of font file
string PacketHeader = "! CISDF\r\n{0}\r\n{1}\r\n{2}\r\n";
//************************
int CheckSum = 0;
foreach (byte b in baBody)
  CheckSum += b;

PacketHeader = String.Format(PacketHeader, sFileName, Convert.ToString(baBody.Length, 16).PadLeft(8, '0').ToUpper(), Convert.ToString(65536 - (CheckSum % 65536), 16).PadLeft(4, '0').ToUpper());

List<byte> list = new List<byte>();
list.AddRange(Encoding.Default.GetBytes(PacketHeader.ToCharArray()));
list.AddRange(baBody);
list.AddRange(new byte[] { 0x1B, 0x68, 0x1B, 0x68, 0x1B, 0x68, 0x1B, 0x70, 0x00 });

int PacketSize = list.Count;
byte[] tmp;
int sourceIndex = 0;

while (PacketSize / 512 >= 1)
{
  tmp = list.GetRange(sourceIndex, 512).ToArray();
  int BytesSent = bt.WriteBytesToSerialPort(tmp);
  tmp = null;
  sourceIndex += BytesSent;
  PacketSize -= BytesSent;
  Sleep(100);
}

if (PacketSize > 0)
{
  tmp = list.GetRange(sourceIndex, list.Count - sourceIndex).ToArray();
  PacketSize -= bt.WriteBytesToSerialPort(tmp);
  tmp = null;
}

list.Clear();
list = null;

Answer 2

如果您已经创建了.CPF文件，您只需将文件内容发送到打印机即可正确保存字体。

只需打开一个套接字并write所有字节输出

通过WLAN将字体文件（.cpf）发送到zebra Qln320打印机

2 个答案: