diff --git a/twain/twain/huagaods.cpp b/twain/twain/huagaods.cpp
index 6aae187..5aa7318 100644
--- a/twain/twain/huagaods.cpp
+++ b/twain/twain/huagaods.cpp
@@ -1988,12 +1988,6 @@ void huagao_ds::init_support_caps(void)
 			auto mech = data.currentItem<CapType::IBitDepth>();
 			if (Msg::Set == msg)
 			{
-#ifdef	ARMY_SCANNER
-				if (mech >= 0 && mech <= 2)
-					val = mech;
-				else
-					val = COLOR_RGB;
-#else
 				if (mech == 1)
 					val = COLOR_BW;
 				else if (mech == 8)
@@ -2002,7 +1996,6 @@ void huagao_ds::init_support_caps(void)
 					val = COLOR_RGB;
 				else
 					val = COLOR_RGB;	// mech;
-#endif
 			}
 			{
 				wchar_t info[128] = { 0 };
@@ -3711,7 +3704,19 @@ DWORD huagao_ds::get_config_number(const wchar_t* sec, const wchar_t* key, DWORD
 	if (cfg_f.empty())
 		return empty;
 	else
-		return GetPrivateProfileIntW(sec, key, def, get_config_file().c_str());
+	{
+		DWORD val = GetPrivateProfileIntW(sec, key, def, cfg_f.c_str());
+		if (val == def)
+		{
+			val = GetPrivateProfileIntW(sec, key, def + 2, cfg_f.c_str());
+			if (val == def + 2)
+				val = empty;
+			else
+				val = def;
+		}
+
+		return val;
+	}
 }
 int huagao_ds::handle_scanner_event(int ev, bool from_event_proc)
 {