[ubuntu] Epson L350 Scaer/Printer

I had installed the Epson L350 Scaer/Printer at 14.04, but on 15.10 I fail to get the scaing part to work.

I tried to install the scaer driver from Epson

I switch to the directory:
cd iscan-bundle-1.0.0.x64.deb/
sudo dpkg -i data/iscan-data_1.36.0-1_all.deb
sudo dpkg -i core/iscan_2.30.1-1~usb0.1.ltdl7_amd64.deb
sudo dpkg -i plugins/iscan-network-nt_1.1.1-1_amd64.deb

Simple scan did not find the scaer.

sudo apt-get install sane sane-utils libsane-extras xsane

sudo sane-find-scaer
found USB scaer (vendor=0x04b8 [EPSON], product=0x08a1 [EPSON L350 Series]) at libusb:001:007
could not fetch string descriptor: Pipe error

sudo scanimage -L
device `epkowa:usb:001:007' is a Epson (unknown model) flatbed scaer

according to the found scaer in sane-find-scaer I edited the line in /etc/sane.d/epson.conf
usb to
usb 0x04b8 0x08a1

Simple Scan says now under Source: Epson (unknown model) - Scaing results in Unable to coect to scaer

Image Scan!
results in an iscan titled window with "Could not send command to scaer. Check the scaer's status.

Xscan
Failed to open device `epkowa:001:007'

On a mounted drive I have the old files of 14.04 preserved.

What can I do to get the scaer working again?