diff --git a/scim-wnn/src/scim_wnn_imengine.cpp b/scim-wnn/src/scim_wnn_imengine.cpp
index 6272883..d7b01f7 100644
--- a/scim-wnn/src/scim_wnn_imengine.cpp
+++ b/scim-wnn/src/scim_wnn_imengine.cpp
@@ -595,7 +595,7 @@
         }
         return(true);
     } else
-    if (isprint(key.code)) {
+    if (key.get_ascii_code()) {
         if (key.mask & (SCIM_KEY_AltMask | SCIM_KEY_ControlMask)) return(false);
             if (m_lookup) {
                 char numk[] = "1234567890";
@@ -650,6 +650,14 @@
         return(true);
     }
 
+    if (k_lookup_pageup.comp(key)) {
+        lookup_table_page_up();
+        return(true);
+    } else
+    if (k_lookup_pagedown.comp(key)) {
+        lookup_table_page_down();
+        return(true);
+    } else
     if (k_conversion_next.comp(key) || k_conversion_prev.comp(key) || k_select_yosoku.comp(key)) {
         k_conversion_prev.comp(key) ? m_convList.pos --: m_convList.pos ++;
         if (m_convList.pos >= m_convList.count) m_convList.pos = 0;
@@ -675,6 +683,17 @@
         return(true);
     }
     if (!key.get_ascii_code()) return(true);
+    if (!(key.is_control_down() || key.is_alt_down() || key.is_shift_down())) {
+        char numk[] = "1234567890";
+        for(int numc = 0;numk[numc]; ++ numc) {
+            if (key.get_ascii_code() == numk[numc]) {
+                if (m_lookup_table.get_current_page_size() > numc)
+                    select_candidate((unsigned int)numc);
+                return(true);
+            }
+        }
+    }
+
     m_yosoku = false;
     commit_string(m_convList.kouho.at(m_convList.pos));
     m_preeditor->reset();