Title: Cups with Epson Workforce 635
Subject: Setup a Epson Workforce 635 in Cups on gentoo Linux
#
# First download src.rpm from epson
#
http://aur.archlinux.org/packages.php?ID=42294
wget http://linux.avasys.jp/drivers/lsb/epson-inkjet/stable/SRPMS/epson-inkjet-printer-workforce-635-nx625-series-1.0.1-1lsb3.2.src.rpm

#
# Convert src.rpm to tarball with rpm2targzf
# Install if it is not
#
if [[ `eix -I rpm2targzf > /dev/null  2>&1` ]]; then
    sudo emerge app-arch/rpm2targz
else
    echo "Already instlaled: app-arch/rpm2targz"
fi
rpm2targz epson-inkjet-printer-workforce-635-nx625-series-1.0.1-1lsb3.2.src.rpm
#
# Unpack
#
mkdir epson-inkjet-printer
tar -xzvf epson-inkjet-printer-workforce-635-nx625-series-1.0.1-1lsb3.2.src.tar.gz -C epson-inkjet-printer
pushd epson-inkjet-printer
#
# Unpack and position
#
sudo mkdir /opt/epson-inkjet-printer-workforce-635-nx625-series
sudo tar -xzvp \
 --strip-components=1 \
 -f epson-inkjet-printer-workforce-635-nx625-series-1.0.1.tar.gz \
 -C /opt/epson-inkjet-printer-workforce-635-nx625-series
#
# Build & Install
#
tar -zxvpf epson-inkjet-printer-filter-1.0.0.tar.gz
pushd ./epson-inkjet-printer-filter-1.0.0/
chmod +x configure
./configure --prefix=/opt/epson-inkjet-printer-workforce-635-nx625-series
make 
make install
#
# some paths are messed up, 
# the filesystem places ppd in:
# But cups error logs shows it looking for:
# /opt/epson-inkjet-printer-workforce-635-nx625-series/cups/lib/filter/epson_inkjet_printer_filter
# But file system places epson_inkjet_printer_filter in:
# /opt/epson-inkjet-printer-workforce-635-nx625-series/lib/cups/filter/epson_inkjet_printer_filter
#
cd /opt/epson-inkjet-printer-workforce-635-nx625-series
mkidr cups/lib
pushd !$
ln -s ../lib/cups/filters filter
popd
#
# Now the ppd file exists...
#
/opt/epson-inkjet-printer-workforce-635-nx625-series/ppds/EPSON_WorkForce_630_Series.ppd
#------------------------
# SCANNER
#------------------------
#  http://www.sane-project.org/lists/sane-backends-external.html#S-EPKOWA
#  Driver not in sane yet:
#  Manufacturer  Model 	Interface 	USB id 	        Status   Comment
#  Epson         WorkForce 630 Series 	0x04b8/0x085d   Complete network interface supported via DFSG non-free iscan-network-nt package all-in-one
#
# Backend: epkowa (iscan 2.26.1/iscan-data 1.5.0)
# Link(s): http://www.avasys.jp/english/linux_e/ 
#
# Directions: http://web.iesrodeira.com/cgi-bin/man/man2html?sane-epkowa+5
#
echo 'media-gfx/sane-backends avahi doc gphoto2 sane_backends_epson sane_backends_epson2 avahi gphoto2 ipv6 sane_backends_genesys usb v4l' >> /etc/portage/package.use
emerge sane-backends

scanimage -L
device `epson2:net:192.168.0.5' is a Epson PID 085D flatbed scanner