can't save selected_device parameter

[Steve Palincsar]

simple-scan can't find my HP scanner.

If I bring up simple-scan from the apps menu the Scanner box is blank and there's no way to enter data into it.

If I start it from the command line, passing scanner type and IP address ( simple-scan hpaio:/net/psc_2500_series?ip=10.0.0.1 ) it finds the scanner and scans, and this scanner shows up in the Preferences "Scanner" box, but there's no way to save it on the Preferences screen.

I can't find any way to set and save this preference via application configuration either. Using dconf-editor I can edit the selected-device parameter to add my scanner to the selected-devices field but when I start simple-scan it doesn't see the device. Curiously, if I use dconf-editor to change the save-directory field, the new directory is used to save.

I also am unable to find a way to add the scanner type & IP address to the apps menu launcher.