I’m glad you included the 32bit part … shows I’ve been offline for a month, I forgot to ask that :
Anyway …
Go to this page:
http://www.avasys.jp/lx-bin2/linux_e/spc/DL1.do
ignore the Model name drop down menu, and instead scroll down to the Form for download section.
in that section look for:
Epson Stylus NX230/SX235W/TX230W/TX235W
and tick the box (circle).
scroll to the bottom of the page, and make the 2 dropdown menu’s read:
Distribution = Ubuntu
Distribution version = 11.10
Click Next.
Now from that page, download these 3 packages.
iscan-data_1.13.0-1_all.deb
and
iscan_2.28.1-3.ltdl7_i386.deb
and
iscan-network-nt_1.1.0-2_i386.deb
To install them, just double-click them, then when the Ubuntu Software Centre opens, Click Install… they MUST be installed in the order above,iscan-data_1.13.0-1_all.deb FIRST.
The printer should now be working, but the scanner won’t be, so …
Now you need to get the IP address for your All-In-One.
This bit is for a different Epson printer, but it should be similar for the SX235W… Go to Menu on the front of the printer, select “Setup,” then “Confirm Network Settings.”
Somewhere in there, the IP address of your printer/scanner should be listed.
If you want, you can print a status sheet from here by hitting the “Start” button… This will contain info like your IP address, Device ID, Workgroup, Port, etc.
Once you know the IP address for the All-In-One, open the /etc/sane.d/epkowa.conf file for editing:
sudo gedit /etc/sane.d/epkowa.conf
(check that it already contains a load of commented out (# at beginning of line) lines… if it’s empty, let me know).
Add a line at the bottom that reads:
net <[b]your[/b] Printer's IP address>
example -
net 192.168.1.12
SAVE the file, and try iscan now (may require a reboot).
It would be a good idea to give your Epson All-In-One a static IP, because if it ever gets assigned a different IP by the DHCP server, the scanner will stop working unless you edit epkowa.conf with its new address.
I’m putting this link here for future reference, but it may be worth a glance:
EPSON SX425 All-in-One Wi-Fi set up