diff --git a/sane/scanner.cpp b/sane/scanner.cpp
index bbd0770..2d6c7dc 100644
--- a/sane/scanner.cpp
+++ b/sane/scanner.cpp
@@ -915,7 +915,7 @@ int scanner::open(void)
 			hg_sane_middleware::instance()->set_option(handle_, (void*)SANE_OPT_ID_ROLLER_LIFE, SANE_ACTION_GET_VALUE, &life, NULL) == SANE_STATUS_GOOD)
 			//hg_sane_middleware::instance()->get_cur_value(handle_, (void*)SANE_OPT_ID_ROLLER_LIFE, &life))
 		{
-			if (cnt >= life)
+			if (cnt >= life / 100 * 99)	// 99%
 			{
 				if (callback::show_messagebox_ui)
 				{