diff --git a/sane/s2t_api.h b/sane/s2t_api.h
index 75e921a..a263541 100644
--- a/sane/s2t_api.h
+++ b/sane/s2t_api.h
@@ -260,6 +260,7 @@ struct __declspec(novtable) ISaneInvoker : public IRef
 	SANE_OPTION_ID_API(search_hole_range_b);		// 穿孔搜索范围 - 下
 	SANE_OPTION_ID_API(fold_direction);				// 对折模式
 	SANE_OPTION_ID_API(discardblank);				// 跳过空白页
+	SANE_OPTION_ID_API(lens_dirty);					// 镜头脏污检测
 	
 	// SANE-ex option ID:
 	SANE_OPTION_ID_API_EX(multiout_type);			// int
diff --git a/sane/scanner.cpp b/sane/scanner.cpp
index 6734611..1e0d54d 100644
--- a/sane/scanner.cpp
+++ b/sane/scanner.cpp
@@ -206,6 +206,7 @@ namespace callback
 				, {SANE_STD_OPT_NAME_FOLD_TYPE			   , OPTION_TITLE_DZMS}
 				, {SANE_STD_OPT_NAME_COLOR_CORRECTION      , OPTION_TITLE_SPJZ}
 				, {SANE_STD_OPT_NAME_DISCARDBLANK		   , OPTION_TITLE_TGKBY}
+				, {SANE_STD_OPT_NAME_LENS_DIRTY			   , OPTION_TITLE_JTZWJC}
 	},
 		g_discard[] = { {SANE_STD_OPT_NAME_REVERSE_01		   , "\351\273\221\347\231\275\345\233\276\345\203\217\345\217\215\350\211\262\350\276\223\345\207\272\357\274\210\346\255\243\345\270\270\351\242\234\350\211\262\344\270\272\357\274\2320-\351\273\221\350\211\262\357\274\2331-\347\231\275\350\211\262\357\274\211"}	// 濮掓稒鍨瑰▍褔宕堕幆褍鍓奸柛娆忕Х婢瑰﹥娼忛幘鍐叉瘔闁挎稑鐗婇婊呮暜閹间緡鏉归柤纭呭紦鐠愮喖�?-濮掓稒鍨兼竟濠囨�?-闁谎冣偓鐔奉棌闁?
 					,   {SANE_STD_OPT_NAME_FILTER              , "\347\201\260\345\272\246\346\210\226\351\273\221\347\231\275\345\233\276\345\203\217 - \351\231\244\350\211\262"}																																						// 闁诲繑婢樼€规娊骞嬮弽顓犳嫧闁谎嗘濞存﹢宕?- 闂傚嫨鍊涙竟?
@@ -1223,6 +1224,7 @@ int scanner::init_options_id(void)
 	INIT_FIXED_IDS(CUSTOM_GAMMA);
 	INIT_FIXED_IDS(MOTOR_VER);
 	INIT_FIXED_IDS(INITIAL_BOOT_TIME);
+	INIT_FIXED_IDS(LENS_DIRTY);
 	
 
 	while ((desc = hg_sane_middleware::instance()->get_option_descriptor(handle_, (const void*)op_id)))
@@ -1335,6 +1337,7 @@ int scanner::init_options_id(void)
 		else SET_OPT_ID(color_correction, COLOR_CORRECTION, extension_none)
 		else SET_OPT_ID(language, LANGUAGE, extension_none)
 		else SET_OPT_ID(discardblank, DISCARDBLANK, extension_none)
+		else SET_OPT_ID(lens_dirty, LENS_DIRTY, extension_none)
 		op_id++;
 	}
 
@@ -3450,6 +3453,7 @@ SANE_OPTION_ID_IMPLEMENT(is_erase_hole_b)
 SANE_OPTION_ID_IMPLEMENT(search_hole_range_b)
 SANE_OPTION_ID_IMPLEMENT(fold_direction)
 SANE_OPTION_ID_IMPLEMENT(discardblank)
+SANE_OPTION_ID_IMPLEMENT(lens_dirty)
 
 // SANE-ex option ID:
 SANE_OPTION_ID_IMPLEMENT(ex_multiout_type)
diff --git a/sane/scanner.h b/sane/scanner.h
index ccf6040..a858085 100644
--- a/sane/scanner.h
+++ b/sane/scanner.h
@@ -326,6 +326,7 @@ public:
 	SANE_OPTION_ID(search_hole_range_b);		// 穿孔搜索范围 - 下
 	SANE_OPTION_ID(fold_direction);				// 对折模式
 	SANE_OPTION_ID(discardblank);				// 跳过空白页
+	SANE_OPTION_ID(lens_dirty);					// 镜头脏污检测
 
 	// SANE-ex option ID:
 	SANE_OPTION_ID(ex_multiout_type);			// int