diff --git a/includes/admin.form.inc b/includes/admin.form.inc
index 42612ea0..51116f5c 100644
--- a/includes/admin.form.inc
+++ b/includes/admin.form.inc
@@ -68,6 +68,12 @@ function islandora_repository_admin(array $form, array &$form_state) {
             useful if derivatives are to be created by an external service.'),
           '#default_value' => variable_get('islandora_defer_derivatives_on_ingest', FALSE),
         ),
+        'islandora_show_print_option' => array(
+          '#type' => 'checkbox',
+          '#title' => t('Show print option on objects'),
+          '#description' => t('Displays an extra print tab, allowing an object to be printed'),
+          '#default_value' => variable_get('islandora_show_print_option', FALSE),
+        ),
       ),
       'islandora_namespace' => array(
         '#type' => 'fieldset',
diff --git a/includes/ingest.form.inc b/includes/ingest.form.inc
index c83b140c..2104e957 100644
--- a/includes/ingest.form.inc
+++ b/includes/ingest.form.inc
@@ -762,6 +762,7 @@ function islandora_ingest_form_ingest_button_process(array $element) {
       "$islandora_path/js/spinner.js",
     ),
   );
+  $element['#attributes']['class'][] = 'islandora-spinner-submit';
   return $element;
 }
 
diff --git a/includes/utilities.inc b/includes/utilities.inc
index 7476948b..4786e362 100644
--- a/includes/utilities.inc
+++ b/includes/utilities.inc
@@ -72,6 +72,9 @@ function islandora_temp_file_entry($file_uri, $mime = NULL) {
     if (isset($mime)) {
       $file->filemime = $mime;
     }
+    else {
+      $file->filemime = file_get_mimetype($file_uri);
+    }
   }
   $file->status = 0;
   return file_save($file);
@@ -194,11 +197,14 @@ function islandora_invoke_hook_list($hook, array $refinements, array $args) {
     $return = array_merge_recursive($return, $result);
     array_shift($args);
   }
-  if (module_exists('rules') && $event = rules_get_cache("event_$hook")) {
-    $parameters = $event->parameterInfo();
-    $rule_args = array_slice($args, 0, count($parameters));
-    array_unshift($rule_args, $hook);
-    $result = call_user_func_array('rules_invoke_event', $rule_args);
+  if (module_exists('rules')) {
+    $event_info = rules_get_event_info($hook);
+    if (isset($event_info['module'])) {
+      $parameters = $event_info['variables'];
+      $rule_args = array_slice($args, 0, count($parameters));
+      array_unshift($rule_args, $hook);
+      $result = call_user_func_array('rules_invoke_event', $rule_args);
+    }
   }
   return $return;
 }
diff --git a/islandora.module b/islandora.module
index 8626ca63..77984c07 100644
--- a/islandora.module
+++ b/islandora.module
@@ -147,7 +147,7 @@ function islandora_menu() {
     'page callback' => 'islandora_printer_object',
     'page arguments' => array(2),
     'type' => MENU_LOCAL_TASK,
-    'access callback' => 'islandora_object_access',
+    'access callback' => 'islandora_print_object_access',
     'access arguments' => array(ISLANDORA_VIEW_OBJECTS, 2),
   );
   $items['islandora/object/%islandora_object/print'] = array(
@@ -663,6 +663,31 @@ function islandora_print_object(AbstractObject $object) {
   return theme('islandora_object_print', array('object' => $object));
 }
 
+/**
+ * View print tab access.
+ *
+ * Configurable option in islandora configuration.
+ *
+ * @param string $op
+ *   String identifying an operation to check. Should correspond to a
+ *   permission declared via hook_permission().
+ * @param AbstractObject $object
+ *   An object to check for permissions.
+ *
+ * @return bool
+ *   TRUE if at least one implementation of hook_islandora_object_access()
+ *   returned TRUE, and no implementation return FALSE; FALSE otherwise, or
+ *   FALSE if 'islandora_show_print_option' is not selected in islandora
+ *   configuraton.
+ */
+function islandora_print_object_access($op, $object) {
+  if (!variable_get('islandora_show_print_option', FALSE)) {
+    return FALSE;
+  }
+  $access = islandora_object_access($op, $object);
+  return $access;
+}
+
 /**
  * Implements hook_forms().
  */
@@ -1070,6 +1095,7 @@ function islandora_view_object(AbstractObject $object) {
 function islandora_printer_object(AbstractObject $object) {
   $output = array();
   $temp_arr = array();
+
   // Dispatch print hook.
   foreach (islandora_build_hook_list(ISLANDORA_PRINT_HOOK, $object->models) as $hook) {
     $temp = module_invoke_all($hook, $object);
@@ -1950,7 +1976,7 @@ function islandora_islandora_datastream_access($op, AbstractDatastream $datastre
     $hooks = islandora_invoke_hook_list(ISLANDORA_DERVIATIVE_CREATION_HOOK, $object->models, array($object));
     $hooks = islandora_filter_derivatives($hooks, array('force' => TRUE), $object);
     foreach ($hooks as $hook) {
-      if ($hook['destination_dsid'] == $datastream->id &&
+      if (isset($hook['destination_dsid']) && $hook['destination_dsid'] == $datastream->id &&
         (is_null($hook['source_dsid']) || islandora_datastream_access(ISLANDORA_VIEW_OBJECTS, $object[$hook['source_dsid']], $user))) {
         $applicable_hook = TRUE;
         break;
diff --git a/js/spinner.js b/js/spinner.js
index 0c83f393..dc910af8 100755
--- a/js/spinner.js
+++ b/js/spinner.js
@@ -44,6 +44,7 @@
                 spinner.spin(this);
                 $('#edit-next').hide();
                 $('#edit-prev').hide();
+                $('.islandora-spinner-submit').hide();
                 // Submit the form after a set timeout, this handles problems with
                 // safari, in that safari submits immediately..
                 if (navigator.userAgent.indexOf('Safari') !== -1 && navigator.userAgent.indexOf('Chrome') === -1) {