diff --git a/hgdriver/hgdev/hg_scanner_200.cpp b/hgdriver/hgdev/hg_scanner_200.cpp
index e361b0a..f031e54 100644
--- a/hgdriver/hgdev/hg_scanner_200.cpp
+++ b/hgdriver/hgdev/hg_scanner_200.cpp
@@ -523,7 +523,7 @@ int hg_scanner_200::get_img_data(unsigned int bytes)
 		status_ = ret;
 		return ret;
 	}
-	io_->set_timeout(2000);
+	io_->set_timeout(500);
 
 	while (total > 0)
 	{
@@ -533,7 +533,7 @@ int hg_scanner_200::get_img_data(unsigned int bytes)
 			block = total;
 		
 		ret = io_->read_bulk(imagedata->data() + index,&block);
-
+		io_->set_timeout(500);  //不能删除可能会导致IO超时
 		if (ret != HG_ERR_OK)
 			break;
 
@@ -975,14 +975,14 @@ void hg_scanner_200::writedown_image_configuration(void)
 	if (test_1_paper_)
 	{
 		HG_LOG(HG_LOG_LEVEL_DEBUG_INFO, "scanning mode: testing ONE paper ...\n");
-		ic.scannum = ic.is_duplex ? 2 : 1;
+		ic.scannum =  1;
 	}
 	else
 	{
-		ic.scannum = (ic.is_duplex ? scan_count_ * 2 : scan_count_);
+		ic.scannum =  scan_count_;
 	}
 
-	ic.scannum =  scan_count_;
+	
 	ic.is_backrotate180 = image_prc_param_.bits.rotate_back_180;
 	ic.is_dogeardetection = image_prc_param_.bits.fractate_check;
 
@@ -1144,13 +1144,13 @@ int hg_scanner_200::agreement()
 	int ret = HG_ERR_OK;
 
 
-	// if (image_prc_param_.bits.rid_color != RID_COLOR_NONE)
-	// {
-	// 	dsp_config_.params.color = 1;
-	// }
+	if (image_prc_param_.bits.rid_color != RID_COLOR_NONE)
+	{
+		dsp_config_.params.color = 1;
+	}
 	
-	// ret = writedown_device_configuration(true);
-	// io_->set_timeout(200);
+	ret = writedown_device_configuration(true);
+	io_->set_timeout(200);
 
 	return ret;
 }
diff --git a/hgdriver/hgdev/hg_scanner_239.cpp b/hgdriver/hgdev/hg_scanner_239.cpp
index 10f41a4..febacde 100644
--- a/hgdriver/hgdev/hg_scanner_239.cpp
+++ b/hgdriver/hgdev/hg_scanner_239.cpp
@@ -1545,9 +1545,9 @@ int hg_scanner_239::start(void)
 	if (ret == HG_ERR_DEVICE_NO_PAPER)
 	{
 		status_ = ret;
-		notify_ui_working_status(STATU_DESC_HG_ERR_DEVICE_NO_PAPER, SANE_EVENT_SCAN_FINISHED, status_);
+		notify_ui_working_status(STATU_DESC_HG_ERR_DEVICE_NO_PAPER, SANE_EVENT_ERROR, status_);
 		HG_VLOG_MINI_1(HG_LOG_LEVEL_WARNING, "device start status is(%s)\n", STATU_DESC_HG_ERR_DEVICE_NO_PAPER);
-		return HG_ERR_OK;
+		return ret;
 	}
 	
 	ret = write_command(SC_START);
diff --git a/hgdriver/hgdev/hg_scanner_300.cpp b/hgdriver/hgdev/hg_scanner_300.cpp
index 526a911..9f49125 100644
--- a/hgdriver/hgdev/hg_scanner_300.cpp
+++ b/hgdriver/hgdev/hg_scanner_300.cpp
@@ -358,7 +358,7 @@ void hg_scanner_300::thread_handle_usb_read(void)
 		status_ = ret;
 		notify_ui_working_status(STATU_DESC_HG_ERR_DEVICE_NO_PAPER, SANE_EVENT_SCAN_FINISHED, status_);
 		HG_VLOG_MINI_1(HG_LOG_LEVEL_WARNING, "device start status is(%s)\n", STATU_DESC_HG_ERR_DEVICE_NO_PAPER);
-		return HG_ERR_OK;
+		return ret;
 	}
 
 	USBCB usb = {START_COMMAND, img_conf_.scannum, 0};