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Installing EPSON scanner on Ubuntu Linux

[date: 2018-03-24]

Install iscan

http://support.epson.net/linux/src/scanner/iscan/

It adds the file /etc/sane/dll.d/iscan, which refers to the epkowa driver

/etc/sane.d/epkowa.conf

Run "iscan"

But it can't find the scanner.

Add USB device specifically?

# vim /etc/sane.d/epkowa.conf
usb 0x04b8 0x0133

Still can't find the scanner.

# strace -e file -o trace iscan
openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/sane/libsane-epkowa.so.1", O_RDONLY) = -1 ENOENT (No such file or directory)

iscan installed the files in the wrong place:

laura@laura-desktop:/pool/Library/software/linux/iscan-bundle-1.0.4.x64.deb$ dpkg -L iscan | grep epkowa
/usr/lib/sane/libsane-epkowa.so.1.0.15
/usr/lib/sane/libsane-epkowa.la

Linked the files. Others found same solution:

https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1728012/comments/12

Still can't find the scanner.

Was iscan-registry supposed to do something at install time, but failed because the libs couldn't be found? Removed and reinstalled (with links already in place) but no help.

strace says it is loading the library, and finding the /sys/... and reading EPSON. Yet seems to skip it. Add line back:

# vim /etc/sane.d/epkowa.conf
usb 0x04b8 0x0133

$ sudo iscan

...hangs

Tried different USB cable

Added Laura to adm, root, sane, scanner, etc groups

Tried rebooting

sane-find-scanner
scanimage -L
device `epkowa:usb:001:003' is a Epson (unknown model) flatbed scanner

Someone said I need to do:

iscan-registry --add interpreter usb 0x04b8 0x0133 /usr/lib/iscan/libesint86 /usr/share/iscan/esfw86.bin

But I don't have those "es" files. Where do they come from? Googling suggests there exists a iscan-gt-1500-bundle

AUR references

Install plugin:

$ sudo iscan-registry --add interpreter usb 0x04b8 0x0133 /usr/lib/iscan/libesint86 /usr/share/iscan/esfw86.bin

Undo the "usb 0x04b8 0x0133" line from epkowa.conf; apparently libusb doesn't work; it uses "interpreter" instead.

Summary:

Install libsane.
Add yourself to plenty of relevant groups?
Install iscan: http://support.epson.net/linux/src/scanner/iscan/
Install scanner-specific plugin: https://download2.ebz.epson.net/iscan/plugin/gt-1500/deb/x64/iscan-gt-1500-bundle-1.0.1.x64.deb.tar.gz
sudo iscan-registry --add interpreter usb 0x04b8 0x0133 /usr/lib/iscan/libesint86 /usr/share/iscan/esfw86.bin

There is a newer imagescan:

https://github.com/utsushi/imagescan

http://support.epson.net/linux/src/scanner/imagescanv3/ubuntu/