diff --git a/munin/canon_ b/munin/canon_
index 217e20dc..fc6f33fa 100755
--- a/munin/canon_
+++ b/munin/canon_
@@ -33,6 +33,8 @@ dico_courbes_gen = {
                 'vlabel': u"Pourcentage restant",
                 'lower-limit' : 0,
                 'upper-limit' : 6000,
+                'warning' : '5:',
+                'critical' : '1:',
                 'dico' : { 'ton_b' : (SNMP_TON_B, "Toner noir", "000000"),
                            'ton_c' : (SNMP_TON_C, "Toner cyan", "00ffff"),
                            'ton_m' : (SNMP_TON_M, "Toner magenta", "ff00ff"),
@@ -46,11 +48,13 @@ dico_courbes_gen = {
     'papier' : { 'titre'   : 'Stock papier',
                  'vlabel' : 'Feuilles restantes',
                  'lower-limit' : 0,
+                 'warning' : '100:',
+                 'critical' : '1:',
                  'upper-limit' : 550,
                  'dico' : { 'Bac1' : (SNMP_BAC1, "Feuilles A4 (Bac 1)", '3333ff'),
                             'Bac2' : (SNMP_BAC2, "Feuilles A4 (Bac 2)", '4444cc'),
                             'Bac3' : (SNMP_BAC3, "Feuilles A4R (Bac 3)", "33ff33"),
-                            'Bac4' : (SNMP_BAC4, "Feuilles A4R (Bac 4)", "ff3333") }
+                            'Bac4' : (SNMP_BAC4, "Feuilles A3 (Bac 4)", "ff3333") }
                  },
     'compteur' : { 'titre' : 'Pages imprimées',
                    'vlabel' : 'Pages',
@@ -70,7 +74,8 @@ vlabel = dico_courbes_gen[arg]['vlabel']
 lower_limit = dico_courbes_gen[arg].get('lower-limit', None)
 upper_limit = dico_courbes_gen[arg].get('upper-limit', None)
 max_courbes = dico_courbes_gen[arg].get('max', [])
-
+warning = dico_courbes_gen[arg].get("warning")
+critical = dico_courbes_gen[arg].get("critical")
 
 try :
     arg = sys.argv[1]
@@ -80,7 +85,7 @@ except :
 if arg == "config" :
     print 'host_name canon'
     print 'graph_category consommables'
-    if lower_limit and upper_limit:
+    if upper_limit:
         print "graph_args --lower-limit %i --upper-limit %i --rigid" % (lower_limit,upper_limit)
     else:
         print "graph_args --lower-limit 0"
@@ -90,10 +95,10 @@ if arg == "config" :
     keys.sort()
     for fieldname in keys:
         print "%s.label %s" % (fieldname,dico_courbes[fieldname][1])
-#        if warning:
-#            print "%s.warning %s" % (fieldname, warning)
-#        if critical:
-#            print "%s.critical %s" % (fieldname, critical)
+        if warning:
+            print "%s.warning %s" % (fieldname, warning)
+        if critical:
+            print "%s.critical %s" % (fieldname, critical)
         if len(dico_courbes[fieldname]) == 3 :
             print "%s.colour %s" % (fieldname,dico_courbes[fieldname][2])
         if len(dico_courbes[fieldname]) == 4 :