diff --git a/hgdriver/hgdev/hg_scanner_239.cpp b/hgdriver/hgdev/hg_scanner_239.cpp
index 0afd20d..e6f71d4 100644
--- a/hgdriver/hgdev/hg_scanner_239.cpp
+++ b/hgdriver/hgdev/hg_scanner_239.cpp
@@ -1644,9 +1644,66 @@ int hg_scanner_239::set_clear_roller_num(void)
 }
 int hg_scanner_239::set_clear_history_num(void)
 {
-	std::lock_guard<std::mutex>      lock(io_lock_);
-	int val = 0,
+	string 	device_log_path = "/usr/local/huago/scannerinfo.json";
+	string	str;
+
+	int 	ret = SCANNER_ERR_OK;
+	int		buffersize = 0;
+	int		len = device_log_path.size();
+
+	if (pid_ == 0x439)
+	{
+		ret = write_register(setting3399::SR_SET_JSON_PATH, len);
+		if (ret == SCANNER_ERR_OK)
+			ret = io_->write_bulk(&device_log_path[0], &len);
+
+		if (ret == SCANNER_ERR_OK)
+			ret = read_register(setting3399::SR_GET_JSON_SIZE, &buffersize);
+
+		if (ret == SCANNER_ERR_OK && buffersize > 0)
+			ret = write_register(setting3399::SR_GET_JSON, buffersize);
+
+		if (ret == SCANNER_ERR_OK && buffersize > 0)
+		{
+			str.resize(buffersize);
+			ret = io_->read_bulk(&str[0], &buffersize);
+		}
+
+		std::string str2;
+		json js = json::parse(str);
+		if (js.contains("TotalScanned"))
+		{
+			js["TotalScanned"] = 0;
+			str2 = js.dump();
+		}
+
+		int		buffersize = 0;
+		int		len = device_log_path.size();
+		int		lenstr = str2.size();
+		io_->set_timeout(3000);
+		ret = write_register(setting3399::SR_SET_JSON_PATH, len);
+		if (ret != SCANNER_ERR_OK)
+			return ret;
+
+		ret = io_->write_bulk(&device_log_path[0], &len);
+		if (ret != SCANNER_ERR_OK)
+			return ret;
+
+
+		ret = write_register(setting3399::SR_SET_JSON, lenstr);
+		if (ret != SCANNER_ERR_OK)
+			return ret;
+
+		ret = io_->write_bulk(&str2[0], &lenstr);
+		if (ret != SCANNER_ERR_OK)
+			return ret;
+	}
+	else
+	{
+		std::lock_guard<std::mutex>      lock(io_lock_);
+		int val = 0;
 		ret = read_register(setting3399::SR_CLR_SCANN_NUM, &val);
+	}
 
 	return ret;
 }