[ubuntu] Xsane no devices available after paper jam

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http://ubuntuforums.org – I have a samsumg scx-4521f printer/scanner. It works fine for both printing and scanning. The only problem is that if I get a paper jam Xsane will stop working to scan. I get the following error: "No devices available" Every time this happens I have to reboot the system in order to get it to work again. I'm guessing the drivers are not being reloaded. I'm not sure. Does anybody know how to tackle this problem? I'm using Ubuntu 9.10 (Hardware)