diff --git a/code/base/test_base.cpp b/code/base/test_base.cpp
index 3bd60fe..12cbb07 100644
--- a/code/base/test_base.cpp
+++ b/code/base/test_base.cpp
@@ -191,7 +191,10 @@ public:
 				wstr.resize(len);
 				wstr = buf;
 			}
-
+			SANE_Bool close = false;
+			unsigned int len = sizeof(SANE_Bool);
+			ret = h->io_control(IO_CTRL_CODE_RESTORE_SETTINGS, NULL, NULL);//结束恢复默认
+			ret = h->io_control(IO_CTRL_CODE_GET_DPI_COLOR_CHECK_VAL, &close, &len);//结束恢复默认
 			h->test_callback(set_test_name_.c_str(), ui_helper::TEST_EVENT_RESULT, (void*)wstr.c_str(), type);
 		}
 		break;