I solved my problem by redownloading the firmware file which I had place
in /etc/sane.d. The file that works for me :
fc6ef4674ffe8d2afa403f79cc8dbc0e esfw30.bin
Scanning works now.
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ht
Also does not work for me anymore ever since the update to 14.04. Have
to reboot to Windows to use the device.
scanimage -L does list the device at first, it also is listed (always)
doing an lsusb. Trying to use a scanning application (skanlite, xsane or
vuescan) each app is not able to find the d