Epson 3490 Photo Scanner in Ubuntu 15.10

After years of this device (cheap on ebay) sat on the side it works! Thanks to
Download and extract the following file to your home directory…

go to a command prompt

sudo apt-get install sane libsane-extras simple-scan
sudo cp ~/Esfw52.bin /etc/sane.d
sudo nano /etc/sane.d/snapscan.conf
At the top, add the line
 firmware /etc/sane.d/Esfw52.bin

Uncomment the following line

/dev/usb/scanner0 bus=usb