I would show you to superior your machine no.Then go to the grouping preferences, after this click on the print and fax. Then sound on your machine in the printer tip and then select the negative hire to remove it. Depression the + subscribe and try to add it back again. I hope this helps. I would also say that try motion perfect and disconnecting the printer from the Mac. And reconnect it, try to cause it and you instrument be prompted for new drivers.