Slight progress: scanimage -L went from “No scanners were identified.” to “device epkowa:usb:001:002 is a Epson (unknown model) flatbed scanner” after running this: ln -s /usr/lib/sane/libsane-epkowa.so.1 /usr/lib/x86_64-linux-gnu/sane/libsane-epkowa.so.1
However, iscan still shows the same error, and xsane shows “Failed to open device epkowa:usb:001:002 Access to resource has been denied”
“Funny” that you’re having this as I do have a Samsung C460FW attached on my LAN (printer+fax+scanner) and after that I upgraded to 17.10 it stopped working even though the driver was installed.
Getting back a “# ERROR: snmp_open(“udp6:[ff02::1]”) failed, Address family not supported by protocol” error when issuing “scanimage -L” yet printing on it never stopped working correctly.
Another missing item was the iscan-bundle TGZ is missing the deb file with the esci-Interpreter required for some scanners, including the V300.
But even installing that deb does not help.
Comparing strace iscan of 16.04 vs. 17.10/18.04 I noticed this important difference:
this line here appears in all versions (the file is not in that folder) open("/usr/lib/x86_64-linux-gnu/sane/libsane-epkowa.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)
however in 16.04 only it is searched for in another folder and found:
Just in case, I created a 16.04 VM with the driver set up properly in VirtualBox as “plan B”, I still hope there will be a proper solution for current versions, though.
Maybe a little late to reply but just upgraded to 18.04 and also owner of a Perfection 300 which deliver good service for a longtime. The problem is linked to a missing udev rule. Sane project nor iscan ( Avasys) have this scanner model in their database. By issuing 'lsusb | grep -i epson' command I was able to add the following rule file in '/etc/udev/hwdb.d'
Both driver downloads came with scripts for easy and flawless installation. However, the scanners were not recognized when entering scanimage -L. Searching for answers, I found a couple of pages that were of interest -
#12, step3 - I copied the three files (libsane-epkowa.la, libsane-epkowa.so.1, libsane-epkowa.so.1.0.15 in my case) to /usr/lib/x86_64-linux-gnu/sane/ . Don't reboot yet.
#19 - I created a file in /etc/udev/rules.d/ named 79-udev-epson.rules.d containing the following -
I then rebooted and tested seeing if scanimage -L in terminal detected the Epson scanners by name -
michael@newton:~$ scanimage -L
device brother4:net1;dev0' is a Brother *scanner HL2280DW'
device epkowa:interpreter:003:007' is a Epson Perfection V30 flatbed scanner'
device epkowa:interpreter:003:008' is a Epson Perfection V500 flatbed scanner'
Sorry, I confess I'm unfamiliar with the syntax of udev rules files. What should be included in 21-epson300photo.hwdb? Can you post it as code? I see stuff in bold and large characters, and if I put just:
usb:v04B8p0131*
libsane_matched=yes
it doesn't work.