修改并口检测时间

lewaimai_pos_windows/tool/CPosPrinter.cpp

@@ -999,7 +999,7 @@ bool CPosPrinter::lptTest(HANDLE hPort)
 		{
 			//LOG_INFO("before lpt test, handle:" << hPort);
 
-			DWORD ret = WaitForSingleObject(hPort, 1000);
+			DWORD ret = WaitForSingleObject(hPort, 500);
 
 			//LOG_INFO("after lpt test, handle" << hPort);