diff --git a/hgdriver/hgdev/hg_scanner.cpp b/hgdriver/hgdev/hg_scanner.cpp
index 7eedcac..26f624e 100644
--- a/hgdriver/hgdev/hg_scanner.cpp
+++ b/hgdriver/hgdev/hg_scanner.cpp
@@ -1383,7 +1383,7 @@ int hg_scanner::setting_color_mode(void* data)
 	if(ret == SCANNER_ERR_NOT_EXACT)
 		strcpy((char*)data, str.c_str());
 
-	return ret;
+	return SCANNER_ERR_RELOAD_OPT_PARAM;	// ret;
 }
 int hg_scanner::setting_multi_out(void* data)
 {
@@ -1400,7 +1400,7 @@ int hg_scanner::setting_multi_out(void* data)
 	//}
 	//on_color_mode_changed(val);
 
-	return SCANNER_ERR_OK;
+	return SCANNER_ERR_RELOAD_OPT_PARAM;	// SCANNER_ERR_OK;
 }
 int hg_scanner::setting_multi_out_type(void* data)
 {
@@ -1421,7 +1421,7 @@ int hg_scanner::setting_multi_out_type(void* data)
 		color = COLOR_MODE_24_BITS;
 	
 	on_color_mode_changed(color);*/
-	return ret;
+	return SCANNER_ERR_RELOAD_OPT_PARAM;	// ret;
 }
 int hg_scanner::setting_rid_color(void* data)
 {
@@ -1539,7 +1539,7 @@ int hg_scanner::setting_paper(void* data)
 	if(old != image_prc_param_.bits.paper)
 		reset_custom_area_range(image_prc_param_.bits.paper);
 
-	return ret;
+	return SCANNER_ERR_RELOAD_OPT_PARAM; // ret;
 }
 int hg_scanner::setting_paper_check(void* data)
 {
@@ -1629,7 +1629,7 @@ int hg_scanner::setting_resolution(void* data)
 	VLOG_MINI_3(LOG_LEVEL_DEBUG_INFO, "Change resolution from %d to %d = %s\n", old, *((int*)data), hg_scanner_err_name(ret));
 	//*((int*)data) = resolution_;
 
-	return ret;
+	return SCANNER_ERR_RELOAD_OPT_PARAM; // ret;
 }
 int hg_scanner::setting_exchagnge(void* data)
 {
@@ -2929,7 +2929,8 @@ int hg_scanner::set_setting(const char* name, void* data, int len)
 		ret = set_setting_value(real_n.c_str(), data, len);
 	}
 
-	if (ret == SCANNER_ERR_OK || ret == SCANNER_ERR_NOT_EXACT || ret == SCANNER_ERR_CONFIGURATION_CHANGED)
+	if (ret == SCANNER_ERR_OK || ret == SCANNER_ERR_NOT_EXACT || ret == SCANNER_ERR_CONFIGURATION_CHANGED
+		|| ret == SCANNER_ERR_RELOAD_IMAGE_PARAM || ret == SCANNER_ERR_RELOAD_OPT_PARAM)
 	{
 		std::string	type(""), name(get_setting_item_string(real_n.c_str(), "title"));
 
diff --git a/hgdriver/wrapper/huagaoxxx_warraper_ex.cpp b/hgdriver/wrapper/huagaoxxx_warraper_ex.cpp
index ef42705..46d733c 100644
--- a/hgdriver/wrapper/huagaoxxx_warraper_ex.cpp
+++ b/hgdriver/wrapper/huagaoxxx_warraper_ex.cpp
@@ -211,6 +211,8 @@ extern "C"
 		RETURN_IF(err, SCANNER_ERR_IO_PENDING);
 		RETURN_IF(err, SCANNER_ERR_NOT_EXACT);
 		RETURN_IF(err, SCANNER_ERR_CONFIGURATION_CHANGED);
+		RETURN_IF(err, SCANNER_ERR_RELOAD_IMAGE_PARAM);
+		RETURN_IF(err, SCANNER_ERR_RELOAD_OPT_PARAM);
 		RETURN_IF(err, SCANNER_ERR_NOT_OPEN);
 		RETURN_IF(err, SCANNER_ERR_NOT_START);
 		RETURN_IF(err, SCANNER_ERR_NOT_ANY_MORE);
@@ -279,6 +281,8 @@ extern "C"
 		RETURN_DESC_IF(err, SCANNER_ERR_IO_PENDING);
 		RETURN_DESC_IF(err, SCANNER_ERR_NOT_EXACT);
 		RETURN_DESC_IF(err, SCANNER_ERR_CONFIGURATION_CHANGED);
+		RETURN_DESC_IF(err, SCANNER_ERR_RELOAD_IMAGE_PARAM);
+		RETURN_DESC_IF(err, SCANNER_ERR_RELOAD_OPT_PARAM);
 		RETURN_DESC_IF(err, SCANNER_ERR_NOT_OPEN);
 		RETURN_DESC_IF(err, SCANNER_ERR_NOT_START);
 		RETURN_DESC_IF(err, SCANNER_ERR_NOT_ANY_MORE);
diff --git a/hgsane/sane_hg_mdw.cpp b/hgsane/sane_hg_mdw.cpp
index b953de1..a582dd1 100644
--- a/hgsane/sane_hg_mdw.cpp
+++ b/hgsane/sane_hg_mdw.cpp
@@ -51,6 +51,8 @@ namespace local_utility
 		RETURN_MATCH_ERROR(hgerr, SCANNER_ERR_IO_PENDING, SANE_STATUS_GOOD);
 		RETURN_MATCH_ERROR(hgerr, SCANNER_ERR_NOT_EXACT, SANE_STATUS_GOOD);
 		RETURN_MATCH_ERROR(hgerr, SCANNER_ERR_CONFIGURATION_CHANGED, SANE_STATUS_GOOD);
+		RETURN_MATCH_ERROR(hgerr, SCANNER_ERR_RELOAD_IMAGE_PARAM, SANE_STATUS_GOOD);
+		RETURN_MATCH_ERROR(hgerr, SCANNER_ERR_RELOAD_OPT_PARAM, SANE_STATUS_GOOD);
 		//RETURN_MATCH_ERROR(hgerr, SCANNER_ERR_NOT_OPEN, SANE_STATUS_NO_DOCS);
 		//RETURN_MATCH_ERROR(hgerr, SCANNER_ERR_NOT_START, SANE_STATUS_NO_DOCS);
 		RETURN_MATCH_ERROR(hgerr, SCANNER_ERR_NO_DATA, SANE_STATUS_EOF);
@@ -77,6 +79,8 @@ namespace local_utility
 		RETURN_MATCH_ERROR(statu, SANE_STATUS_GOOD, SCANNER_ERR_IO_PENDING);
 		RETURN_MATCH_ERROR(statu, SANE_STATUS_GOOD, SCANNER_ERR_NOT_EXACT);
 		RETURN_MATCH_ERROR(statu, SANE_STATUS_GOOD, SCANNER_ERR_CONFIGURATION_CHANGED);
+		RETURN_MATCH_ERROR(statu, SANE_STATUS_GOOD, SCANNER_ERR_RELOAD_IMAGE_PARAM);
+		RETURN_MATCH_ERROR(statu, SANE_STATUS_GOOD, SCANNER_ERR_RELOAD_OPT_PARAM);
 		//RETURN_MATCH_ERROR(statu, SANE_STATUS_NO_DOCS, SCANNER_ERR_NOT_OPEN);
 		//RETURN_MATCH_ERROR(statu, SANE_STATUS_NO_DOCS, SCANNER_ERR_NOT_START);
 		RETURN_MATCH_ERROR(statu, SANE_STATUS_EOF, SCANNER_ERR_NO_DATA);
@@ -171,7 +175,7 @@ namespace local_utility
 		return str > bgn;
 	}
 
-	// 暂不支持科学计数�?1.2e+10
+	// 暂不支持科学计数�?1.2e+10
 	bool get_number(const char*& str, double& val)
 	{
 		const char* bgn = str;
@@ -583,7 +587,7 @@ SANE_Option_Descriptor* hg_sane_middleware::string_option_to_SANE_descriptor(con
 	sod->unit = SANE_UNIT_NONE;
 	sod->size = values.size();
 	sod->cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT		// 软件可设置选项
-				| SANE_CAP_AUTOMATIC;							// 硬件可设置默认�?
+				| SANE_CAP_AUTOMATIC;							// 硬件可设置默认�?
 	if (values.size())
 	{
 		sod->constraint_type = SANE_CONSTRAINT_STRING_LIST;
@@ -704,7 +708,7 @@ SANE_Option_Descriptor* hg_sane_middleware::number_option_to_SANE_descriptor(con
 	sod->unit = SANE_UNIT_NONE;
 	sod->size = sizeof(SANE_Word);
 	sod->cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT		// 软件可设置选项
-		/*| SANE_CAP_AUTOMATIC*/;									// 硬件可设置默认�?
+		/*| SANE_CAP_AUTOMATIC*/;									// 硬件可设置默认�?
 
 	if (values.size())
 	{
@@ -754,7 +758,7 @@ SANE_Option_Descriptor* hg_sane_middleware::number_option_to_SANE_descriptor(con
 	sod->unit = SANE_UNIT_NONE;
 	sod->size = sizeof(SANE_Word);
 	sod->cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT		// 软件可设置选项
-		/*| SANE_CAP_AUTOMATIC*/;									// 硬件可设置默认�?
+		/*| SANE_CAP_AUTOMATIC*/;									// 硬件可设置默认�?
 
 	if (values.size())
 	{
@@ -1015,7 +1019,7 @@ SANE_Option_Descriptor* hg_sane_middleware::from_json(scanner_handle h, const st
 		//if (jsn->get_value("enable", enabled) && !enabled)
 		//	ret->cap |= SANE_CAP_INACTIVE;
 
-		// 关联�?
+		// 关联�?
 		json*	depend = NULL;
 		SLAVEOP so;
 		if (jsn->get_value("depend_or", depend))
@@ -1371,7 +1375,7 @@ SANE_Status hg_sane_middleware::get_devices(const SANE_Device*** device_list, SA
 
 	if (hgerr == SCANNER_ERR_INSUFFICIENT_MEMORY)
 	{
-		count += 4;		// 为两次hg_scanner_enum间隙可能新增的设备预留空�?
+		count += 4;		// 为两次hg_scanner_enum间隙可能新增的设备预留空�?
 		dev = (ScannerInfo*)local_utility::acquire_memory(sizeof(ScannerInfo) * count, "hg_sane_middleware::get_devices");
 		hgerr = hg_scanner_enum(dev, &count, local_only);
 		if (hgerr != SCANNER_ERR_OK)
@@ -1674,6 +1678,17 @@ SANE_Status hg_sane_middleware::set_option(SANE_Handle h, const void* option, SA
 			on_SCANNER_ERR_CONFIGURATION_CHANGED(dev);
 			err = (scanner_err)SANE_INFO_RELOAD_OPTIONS;
 		}
+		else if(err == SCANNER_ERR_RELOAD_IMAGE_PARAM)
+		{
+			VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "the setting '%s' affects image parameter, APP should re-get ...\n", desc->title);
+			err = (scanner_err)SANE_INFO_RELOAD_PARAMS;
+		}
+		else if(err == SCANNER_ERR_RELOAD_OPT_PARAM)
+		{
+			VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "the setting '%s' affects image parameter and options, APP should re-get image info and reload options...\n", desc->title);
+			on_SCANNER_ERR_CONFIGURATION_CHANGED(dev);
+			err = (scanner_err)(SANE_INFO_RELOAD_PARAMS | SANE_INFO_RELOAD_OPTIONS);
+		}
 		else if (err == SCANNER_ERR_ACCESS_DENIED)
 		{
 			status = SANE_STATUS_ACCESS_DENIED;
@@ -1749,7 +1764,7 @@ bool hg_sane_middleware::is_ready(void)
 }
 
 /// <summary>
-/// 关联项处�?
+/// 关联项处�?
 bool hg_sane_middleware::compare_val_equal(const char* cur_val, const char* limit_l, const char* limit_r)
 {
 	return strcmp(cur_val, limit_l) == 0;