[xubuntu] Xubuntu fails to communicate with cups

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http://ubuntuforums.org – Hi! I use Xubuntu 12.10 and can't print. Cups is installed and running Code: status cups cups start/running, process 3759 The Web interface at localhost:631 is working as well. But in the Settings Manager | Printers I get the message: "Printing service not available. Start the service on this computer or connect to another server." As a consequence I can't print in any applications since no printers show up. Any help is very much appreciated! Thanks, Martin (Hardware)