diff --git a/hgdriver/hgdev/hg_scanner_239.cpp b/hgdriver/hgdev/hg_scanner_239.cpp
index 0e2cdcc..a935d35 100644
--- a/hgdriver/hgdev/hg_scanner_239.cpp
+++ b/hgdriver/hgdev/hg_scanner_239.cpp
@@ -1348,13 +1348,12 @@ void hg_scanner_239::thread_get_dves_image(void)
 			std::lock_guard<std::mutex>      lock(io_lock_);
 
 			memset(buf, 0, size);
+			io_->set_timeout(500);  //2023 11 30之前一直使用1000ms ，但是为了能够快速响应下次的状态信息返回这里设置为500ms
 			ret = io_->read_interrupt(buf, &size);
-			io_->set_timeout(1000);
 		}
 
 		if (ret == SCANNER_ERR_TIMEOUT)
 		{
-			std::this_thread::sleep_for(std::chrono::milliseconds(400));
 			if (sw.elapsed_s() > 120 && !is_auto_scan())
 			{
 				status_ = ret;
@@ -1443,7 +1442,6 @@ void hg_scanner_239::thread_get_dves_image(void)
 			if (!svdevs_err_.empty())
 			{
 				status_ = svdevs_err_.front();
-				svdevs_err_.clear();
 			}
 			LOG_INFO(LOG_LEVEL_DEBUG_INFO, "received 'STOPSCAN' message in usb thread, check remaining image and finish scanning ...\n");
 
@@ -1508,7 +1506,11 @@ void hg_scanner_239::thread_get_dves_image(void)
 					notify_ui_working_status(str.c_str(), SANE_EVENT_ERROR, status_);
 				}
 				else
+				{
+					svdevs_err_.clear();
 					break;
+				}
+					
 			}
 		}
 		else if (info->From == setting3399::V4L2)