diff --git a/hgdriver/hgdev/hg_scanner_302.cpp b/hgdriver/hgdev/hg_scanner_302.cpp
index 3b4294a..36d1beb 100644
--- a/hgdriver/hgdev/hg_scanner_302.cpp
+++ b/hgdriver/hgdev/hg_scanner_302.cpp
@@ -1,4 +1,4 @@
-#include "hg_scanner_302.h"
+#include "hg_scanner_302.h"
 #include "../wrapper/hg_log.h"
 #include "filetools.h"
 
@@ -1175,11 +1175,11 @@ std::string hg_scanner_302::get_ip(void)
 
 int hg_scanner_302::set_clear_roller_num(void)
 {
-	std::lock_guard<std::mutex>      lock(io_lock_);
-	int val = 0,
-		ret = read_register(setting3399::SR_CLR_ROLLER_NUM, &val);
+	//std::lock_guard<std::mutex>      lock(io_lock_);
+	//int val = 0,
+	//	ret = read_register(setting3399::SR_CLR_ROLLER_NUM, &val);
 
-	return ret;
+	return SCANNER_ERR_DEVICE_NOT_SUPPORT;
 }
 int hg_scanner_302::set_clear_history_num(void)
 {