Some time go I purchased one of these scanners, after I found through http://www.buzzard.me.uk/jonathan/scanners-usb.html that they work with Linux, and downloaded and installed sane-backends-1.0.19 and sane-frontends-1.0.14 as suggested. Xsane is installed, also.
However, when I clicked on XSane to launch the scanner the following error appeared: Failed to open device 'snapscan:libusb:001:002': Invalid argument. A search for snapscan:libusb:001:002 does not find it but a libusb command in the Terminal shows that it is installed.
At that time, and this is over a year ago, I decided not to bother about it and abandoned the idea. However, I recently came back to the problem - after all why have a scanner sitting on the desk if it doesn't work :-).
So, I downloaded the HowTo on your website http://www.wlug.org.nz/Benq3300/4300ScannerSetup and carefully followed the directions. Regrettably the scanner still does not work.
When I first ran xSane, the window opened. Clicked on Preview and the scanner sprang into action - well, it made noises as if something was going to happen - and then the xSane window closed.
Ran xSane again and got the error message: Failed to open device 'snapscan:lisusb:002:00': Error during device I/O
Entered the Terminal and did lusb, with the following result
zed(a)zed-desktop ~ $ lsusb Bus 002 Device 004: ID 04a5:20b0 Acer Peripherals Inc. (now BenQ Corp.) S2W 3300U/4300U Bus 002 Device 003: ID 046d:c517 Logitech, Inc. LX710 Cordless Desktop Laser Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 005: ID 05e3:0702 Genesys Logic, Inc. USB 2.0 IDE Adapter Bus 001 Device 004: ID 03f0:2f17 Hewlett-Packard EWS 2605dn Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub zed(a)zed-desktop ~ $
So, the Device is there but xSane is "throwing a wobbly" :(
Opened the GIMP to use your suggestion that clicking on Acquire is the easiest way to get the scanner working but I cannot find Acquire in any of the menus in GIMP v2.6.7
On the command-line, you can use the following command to list all available scanners: scanimage -L In the past, I had problems with the default sane plugin in GIMP and I switched to "quiteinsance": sudo apt-get install gimp2.0-quiteinsane The "Acquire" is now available under "Create", if I'm not mistaken. Since the ID of USB devices - like your scanner - can change, depending on the order one plugs in things, I always go through quiteinsane's "selecte device" dialog first. Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cs.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174