Trouble getting epson NX400 to scan images

Asked by Samdidliambo

     I have an epson NX400 printer/scanner. The print function works fine, but the scanner doesn't. The original Xsane error message said something like "No devices found". I downloaded a program called "Image scan!" recommended for fixing this exact problem in Ubuntu. The website stated that it was specifically designed to work with the NX400, among other printer/scanners. I installed it with package manger.
    Despite this, neither the new "Image scan!" program ("could not send command to scanner. check the scanner's status") nor Xsane ("failed to open device 'epkowa:usb:001:002': Access to resource has been denied.") can successfully scan an image. The device is most certainly turned on, plugged in, and in fact prints documents perfectly. Also, the scanning and print functions work perfectly in windows, which I have on an alternate partition.
   How can I get this scanner to work in Ubuntu(9.04)?

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Samdidliambo (sam-beardsley) said :

Now fixed for Xsane. This page was useful:, though had to be adjusted slightly for the different model.