diff -up cups-1.6.1/notifier/dbus.c.dbus-utf8 cups-1.6.1/notifier/dbus.c
--- cups-1.6.1/notifier/dbus.c.dbus-utf8	2012-01-20 19:00:32.000000000 +0000
+++ cups-1.6.1/notifier/dbus.c	2012-10-30 17:03:40.260833091 +0000
@@ -31,6 +31,8 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
+#include <assert.h>
+#include <wchar.h>
 
 #ifdef HAVE_DBUS
 #  include <dbus/dbus.h>
@@ -157,10 +159,78 @@ enum
  * Local functions...
  */
 
-static int	acquire_lock(int *fd, char *lockfile, size_t locksize);
+static int		acquire_lock(int *fd, char *lockfile, size_t locksize);
+static const char	*validate_utf8(const char *str);
 
 
 /*
+ * 'validate_utf8()' - Convert to valid UTF-8
+ */
+
+static const char *
+validate_utf8 (const char *str)
+{
+  static char *buffer = NULL;
+  static size_t buflen = 0;
+  char *p;
+  size_t str_len;
+  unsigned int i;
+  mbstate_t instate, outstate;
+
+  if (str == NULL)
+  {
+    free (buffer);
+    return (NULL);
+  }
+
+  /* Is it already valid? */
+  if (mbstowcs (NULL, str, 0) != (size_t) -1)
+    return str;
+
+  /* Make sure our buffer is at least as large as the input string */
+  str_len = strlen (str);
+  if (str_len > buflen)
+  {
+    buflen = str_len + 1;
+    buffer = realloc (buffer, buflen);
+  }
+
+  memset (&instate, '\0', sizeof (mbstate_t));
+  memset (&outstate, '\0', sizeof (mbstate_t));
+  p = buffer;
+  i = 0;
+  while (i < str_len)
+  {
+    wchar_t wc;
+    size_t used, written;
+    mbstate_t orig_instate = instate;
+    used = mbrtowc (&wc, str + i, str_len - i, &instate);
+    switch (used)
+    {
+    case (size_t) -2:
+    case (size_t) -1:
+      wc = L'?'; /* so replacement is never longer than original char */
+      instate = orig_instate;
+      /* fallthru */
+    case 0:
+      used = 1;
+    }
+
+    written = wcrtomb (p, wc, &outstate);
+    if (written != -1)
+    {
+      p += written;
+      assert (p - buffer < buflen);
+    }
+
+    i += used;
+  }
+
+  *p = '\0';
+  return p;
+}
+
+/*
  * 'main()' - Read events and send DBUS notifications.
  */
 
@@ -366,7 +436,7 @@ main(int  argc,				/* I - Number of comm
     attr = ippFindAttribute(msg, "notify-text", IPP_TAG_TEXT);
     if (attr)
     {
-      const char *val = ippGetString(attr, 0, NULL);
+      const char *val = validate_utf8 (ippGetString(attr, 0, NULL));
       if (!dbus_message_iter_append_string(&iter, &val))
         goto bail;
     }
@@ -530,7 +600,7 @@ main(int  argc,				/* I - Number of comm
       attr = ippFindAttribute(msg, "job-name", IPP_TAG_NAME);
       if (attr)
       {
-        const char *val = ippGetString(attr, 0, NULL);
+        const char *val = validate_utf8 (ippGetString(attr, 0, NULL));
         if (!dbus_message_iter_append_string(&iter, &val))
           goto bail;
       }