Index: modules/univention/admin/handlers/shares/printer.py
===================================================================
--- modules/univention/admin/handlers/shares/printer.py	(Revision 30942)
+++ modules/univention/admin/handlers/shares/printer.py	(Arbeitskopie)
@@ -280,21 +280,20 @@
 	def __init__(self, co, lo, position, dn='', superordinate=None, attributes = [] ):
 		global mapping
 		global property_descriptions
-
-		self.mapping=mapping
-		self.descriptions=property_descriptions
-		univention.admin.handlers.simpleLdap.__init__(self, co, lo, position, dn, superordinate, attributes = attributes )
-		self.save()
-
-	def open(self):
 		global _AVAILABLE_PRINTER_SCHEMAS
 		# find the printer uris
 		if not _AVAILABLE_PRINTER_SCHEMAS:
-			printer_uris = printeruri.lookup( self.co, self.lo, '' )
+			printer_uris = printeruri.lookup( co, lo, '' )
 			_AVAILABLE_PRINTER_SCHEMAS = []
 			for uri in printer_uris:
 				_AVAILABLE_PRINTER_SCHEMAS.extend( uri[ 'printeruri' ] )
 
+		self.mapping=mapping
+		self.descriptions=property_descriptions
+		univention.admin.handlers.simpleLdap.__init__(self, co, lo, position, dn, superordinate, attributes = attributes )
+		self.save()
+
+	def open(self):
 		# find the producer
 		univention.admin.handlers.simpleLdap.open(self)
 		models = printermodel.lookup( self.co, self.lo, 'printerModel="%s*' % self[ 'model' ] )