diff --git a/huagao/Device/GScanO400.cpp b/huagao/Device/GScanO400.cpp
index c195a151..4c3b0893 100644
--- a/huagao/Device/GScanO400.cpp
+++ b/huagao/Device/GScanO400.cpp
@@ -310,7 +310,6 @@ BOOL GScanO400::Get_Scanner_PaperOn()
 	if (!(m_usb.get() && m_usb->is_open()))
 		return false;
 	USBCB usbcb = { GET_PAPER_STATUS ,0,0 };
-	usbcb.u32_Data = 1;
 	std::lock_guard<std::mutex> lck(m_imgLocker);
 	m_usb->write_bulk(&usbcb, sizeof(usbcb));
 	if (m_usb.get() && m_usb->is_connected()) {
diff --git a/huagao/Device/ImageMatQueue.cpp b/huagao/Device/ImageMatQueue.cpp
index 0126f8b3..f34a91f7 100644
--- a/huagao/Device/ImageMatQueue.cpp
+++ b/huagao/Device/ImageMatQueue.cpp
@@ -6,7 +6,7 @@
 #include "filetools.h"
 #include <math.h>
 #include "StopWatch.h"
-#include "JpegBuffer.h"
+//#include "JpegBuffer.h"
 
 using namespace cv;
 using namespace std;
diff --git a/huagao/Device/ImageMatQueue.h b/huagao/Device/ImageMatQueue.h
index 55d4edbe..374f46a5 100644
--- a/huagao/Device/ImageMatQueue.h
+++ b/huagao/Device/ImageMatQueue.h
@@ -6,7 +6,7 @@
 #include "PublicFunc.h"
 #include "BlockingQueue.h"
 #include <memory>
-#include "threadpool.hpp"
+//#include "threadpool.hpp"
 #include "PaperSize.h"
 #include "filetools.h"
 
@@ -62,7 +62,8 @@ private:
 class Mat2BmpBw :public IMat2Bmp {
 public:
 	Mat2BmpBw(const cv::Mat& mat,float res) {
-
+		//static int indeximg = 0;
+		//cv::imwrite("D:\\" + to_string(++indeximg) + ".jpg", mat);
 		m_data = std::shared_ptr<std::vector<unsigned char>>(new std::vector<unsigned char >());
 		int headsize = 62;
 		int width = mat.cols;
diff --git a/huagao/Device/UsbScanEx.cpp b/huagao/Device/UsbScanEx.cpp
index 511395b4..5c596329 100644
--- a/huagao/Device/UsbScanEx.cpp
+++ b/huagao/Device/UsbScanEx.cpp
@@ -164,14 +164,9 @@ int UsbScanEx::read_bulk(void* data, int len)
 			int error_code = GetLastError();
 			switch (error_code)
 			{
-			case ERROR_IO_PENDING: {
-				int re = GetOverlappedResult(h_pipe, lp_overlap, &pdw_ret, TRUE);
-				if (0 != re)
-				{
-					return pdw_ret;
-				}
-				error_code = GetLastError();
-			}
+			case ERROR_IO_PENDING:
+				 GetOverlappedResult(h_pipe, lp_overlap, &pdw_ret, TRUE);
+				return pdw_ret;
 			case ERROR_FILE_NOT_FOUND:
 			case ERROR_ACCESS_DENIED:
 				m_b_is_connected = false;
@@ -206,10 +201,9 @@ int UsbScanEx::write_bulk(void* data, int len)
 		int errorcode = GetLastError();
 		switch (errorcode)
 		{
-		case ERROR_IO_PENDING: {
-			if (0 != GetOverlappedResult(h_pipe, lp_overlap, &dw_size, TRUE))
-				return dw_size;
-		}
+		case ERROR_IO_PENDING:
+			GetOverlappedResult(h_pipe, lp_overlap, &dw_size, TRUE);
+			return dw_size;
 		case ERROR_FILE_NOT_FOUND:
 		case ERROR_ACCESS_DENIED:
 			m_b_is_connected = false;