diff --git a/hgdriver/hgdev/hg_scanner.cpp b/hgdriver/hgdev/hg_scanner.cpp
index f5e3d4b..7e10ace 100644
--- a/hgdriver/hgdev/hg_scanner.cpp
+++ b/hgdriver/hgdev/hg_scanner.cpp
@@ -1944,7 +1944,10 @@ int hg_scanner::save_usb_data(std::shared_ptr<tiny_buffer> data)
 			wait_img_.notify();
 	}
 	unsigned int bytes = data->size();
-	ui_ev_cb_((scanner_handle)this, SANE_EVENT_USB_DATA_RECEIVED, NULL, &bytes, NULL);
+	int type = io_->get_pid() & 0x0ff;
+
+	if(type != 0x39 || (usb_img_index_ & 1))
+		ui_ev_cb_((scanner_handle)this, SANE_EVENT_USB_DATA_RECEIVED, NULL, &bytes, NULL);
 
 	return ret;
 }
diff --git a/hgdriver/hgdev/usb_manager.cpp b/hgdriver/hgdev/usb_manager.cpp
index 8355975..9417e05 100644
--- a/hgdriver/hgdev/usb_manager.cpp
+++ b/hgdriver/hgdev/usb_manager.cpp
@@ -835,7 +835,6 @@ int usb_io::control_io(uint8_t type, uint8_t req, uint16_t val, uint16_t ind, vo
 
     int ret = libusb_control_transfer(handle_, type, req, val, ind, (unsigned char*)buf, *len, to_);
 
-    *len = 0;
     if (ret > 0)
     {
         *len = ret;
@@ -855,7 +854,11 @@ int usb_io::control_io(uint8_t type, uint8_t req, uint16_t val, uint16_t ind, vo
 
                 return last_err_;
             }
+            else
+                *len = 0;
         }
+        else
+            *len = 0;
         VLOG_MINI_5(LOG_LEVEL_DEBUG_INFO, "libusb_control_transfer(%x, %x, %d, %d) = %s\n", type, req, val, ind, libusb_error_name(ret));
         last_err_ = usb_manager::usb_error_2_hg_err(ret);
     }
diff --git a/hgdriver/wrapper/huagaoxxx_warraper_ex.cpp b/hgdriver/wrapper/huagaoxxx_warraper_ex.cpp
index bf0946d..db1e0d2 100644
--- a/hgdriver/wrapper/huagaoxxx_warraper_ex.cpp
+++ b/hgdriver/wrapper/huagaoxxx_warraper_ex.cpp
@@ -28,6 +28,48 @@ std::string g_scanner_path = "";
 static std::string g_sane_name = "";
 static std::string g_sane_ver = "";
 
+namespace err_map
+{
+	struct
+	{
+		int sane;
+		int scanner;
+	}g_err_map[] =
+	{ {SANE_STATUS_GOOD, SCANNER_ERR_OK}
+		, {SANE_STATUS_UNSUPPORTED, SCANNER_ERR_DEVICE_NOT_SUPPORT}
+		, {SANE_STATUS_CANCELLED, SCANNER_ERR_USER_CANCELED}
+		, {SANE_STATUS_DEVICE_BUSY, SCANNER_ERR_DEVICE_BUSY}
+		, {SANE_STATUS_INVAL, SCANNER_ERR_INVALID_PARAMETER}
+		, {SANE_STATUS_EOF, SCANNER_ERR_NO_DATA}
+		, {SANE_STATUS_JAMMED, SCANNER_ERR_DEVICE_PAPER_JAMMED}
+		, {SANE_STATUS_NO_DOCS, SCANNER_ERR_DEVICE_NO_PAPER}
+		, {SANE_STATUS_COVER_OPEN, SCANNER_ERR_DEVICE_COVER_OPENNED}
+		, {SANE_STATUS_IO_ERROR, SCANNER_ERR_IO}
+		, {SANE_STATUS_NO_MEM, SCANNER_ERR_INSUFFICIENT_MEMORY}
+		, {SANE_STATUS_ACCESS_DENIED, SCANNER_ERR_ACCESS_DENIED}
+	};
+
+	static int sane_2_scanner(int sane)
+	{
+		for (size_t i = 0; i < _countof(g_err_map); ++i)
+		{
+			if (g_err_map[i].sane == sane)
+				return g_err_map[i].scanner;
+		}
+
+		return sane;
+	}
+	static int scanner_2_sane(int scanner)
+	{
+		for (size_t i = 0; i < _countof(g_err_map); ++i)
+		{
+			if (g_err_map[i].scanner == scanner)
+				return g_err_map[i].sane;
+		}
+
+		return scanner;
+	}
+}
 extern "C"
 {
 	scanner_err hg_scanner_initialize(sane_callback callback, void* reserve)
@@ -200,6 +242,9 @@ extern "C"
 	}
 	const char* hg_scanner_err_description(int err)
 	{
+		if (err < 0x100)
+			err = err_map::sane_2_scanner(err);
+
 		RETURN_DESC_IF(err, SCANNER_ERR_OK);
 		RETURN_DESC_IF(err, SCANNER_ERR_DEVICE_NOT_SUPPORT);
 		RETURN_DESC_IF(err, SCANNER_ERR_USER_CANCELED);