hi Doug,

This solved it all for me , thanks to Maxo  !, see below.  I only had to
change "gksudo gedit" in to "sudo gedit"

Sunday, November 15, 2009
Scanning Problems in Ubuntu Karmic
9.10<http://maxolasersquad.blogspot.com/2009/11/scanning-problems-in-ubuntu-karmic-910.html>
I went to scan in some pictures today with my new Karmic install and ran
into problems.  When I went to scan I would get "Failed to start scanner:
Invalid argument"  Some Googling revealed that many people are experiencing
broken scanning after upgrading to Karmic with various printers.  A little
more searching revealed the solution.  I think that there is probably an
even better solution, but this is how I got scanning to work.
First I installed libsane-extras:
sudo aptitude install libsane-extras
Next I edited saned.conf to enable the epson driver.
gksudo gedit /etc/init.d/sane.d/dll.conf
In this file I removed the # at the line that read #epson
To get the parameters for me scanner I ran:

$ sane-find-scanner

  # sane-find-scanner will now attempt to detect your scanner. If the
  # result is different from what you expected, first make sure your
  # scanner is powered up and properly connected to your computer.

  # No SCSI scanners found. If you expected something different, make sure
that
  # you have loaded a kernel SCSI driver for your SCSI adapter.

found USB scanner (vendor=0x04b8, product=0x0839) at libusb:001:003
found USB scanner (vendor=0x0bc7 [X10 Wireless Technology Inc],
product=0x0004 [USB Receiver]) at libusb:007:002
  # Your USB scanner was (probably) detected. It may or may not be supported
by
  # SANE. Try scanimage -L and read the backend's manpage.

  # Not checking for parallel port scanners.

  # Most Scanners connected to the parallel port or other proprietary ports
  # can't be detected by this program.

  # You may want to run this program as root to find all devices. Once you
  # found the scanner devices, be sure to adjust access permissions as
  # necessary.

Here the line that read "found USB scanner (vendor=0x04b8, product=0x0839)
at libusb:001:003" was the key.  These parameters needed to go in the epson
drivers file.
gksudo gedit /etc/init.d/sane.d/epson.conf
I replaced the line that read "usb" to read "usb 0x4b8 0x0839"  Finally I
just needed to restart the sane daemon.
sudo /etc/init.d/saned restart
After this scanning finally worked.
Posted by Maxo at 3:10
PM<http://maxolasersquad.blogspot.com/2009/11/scanning-problems-in-ubuntu-karmic-910.html>
 
<http://www.blogger.com/email-post.g?blogID=2160921736769720124&postID=5950210381081136885>
Labels: Linux <http://maxolasersquad.blogspot.com/search/label/Linux>,
technology <http://maxolasersquad.blogspot.com/search/label/technology>,
ubuntu <http://maxolasersquad.blogspot.com/search/label/ubuntu>

On Mon, Feb 22, 2010 at 2:13 PM, Doug Morse <d...@dougmorse.org> wrote:

> I too am having a very similar problem.  I just recently switched this
> particular machine from WinXP Home SP3 to Ubuntu 9.10.
>
> Before I did the install, I used WUBI to try out 9.10.  At that point,
> my Epson Perfection 3590 Photo scanner, connected via USB 2.0, worked
> just fine.
>
> I thought I checked it again after actually installing Ubuntu 9.10 (from
> the same ISO image), but I'm not sure.  If so, I'm also not sure if I
> checked it before or after updating everything, specifically updating
> the kernel from the xxxx.31-14 version to the xxxx.31-19 version.
>
> So, I can't be sure, but I'm wondering if it's a kernel-update issue or
> a library-update issue???
>
> Technical info:
>
>
> ------------------------------------------------------------------------------
> r...@dougshome:~# lsusb -t
>
> ------------------------------------------------------------------------------
> 1-6:1.0: No such file or directory
> /:  Bus 06.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> /:  Bus 05.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> /:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/2p, 12M
> /:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/2p, 12M
> /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/2p, 12M
> /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/6p, 480M
>    |__ Port 6: Dev 3, If 0, Class=vend., Driver=, 480M
>
>
> ------------------------------------------------------------------------------
> r...@dougshome:~# sane-find-scanner -v
>
> ------------------------------------------------------------------------------
> This is sane-find-scanner from sane-backends 1.0.20
>
>  # sane-find-scanner will now attempt to detect your scanner. If the
>  # result is different from what you expected, first make sure your
>  # scanner is powered up and properly connected to your computer.
>
> searching for SCSI scanners:
> checking /dev/scanner... failed to open (Invalid argument)
> checking /dev/sg0... failed to open (Invalid argument)
> checking /dev/sg1... failed to open (Invalid argument)
> checking /dev/sg2... failed to open (Invalid argument)
> ...
> [checking /dev/sg[3-y], same error mesage...]
> ...
> checking /dev/sgz... failed to open (Invalid argument)
>  # No SCSI scanners found. If you expected something different, make sure
> that
>  # you have loaded a kernel SCSI driver for your SCSI adapter.
>
> searching for USB scanners:
> checking /dev/usb/scanner... failed to open (Invalid argument)
> checking /dev/usb/scanner0... failed to open (Invalid argument)
> checking /dev/usb/scanner1... failed to open (Invalid argument)
> checking /dev/usb/scanner2... failed to open (Invalid argument)
> ...
> [checking /dev/usb/scannner[3-14], same error mesage...]
> ...
> checking /dev/usbscanner15... failed to open (Invalid argument)
> found USB scanner (vendor=0x04b8 [EPSON], product=0x0122 [EPSON Scanner])
> at libusb:001:003
>  # Your USB scanner was (probably) detected. It may or may not be supported
> by
>  # SANE. Try scanimage -L and read the backend's manpage.
>
>  # Not checking for parallel port scanners.
>
>  # Most Scanners connected to the parallel port or other proprietary ports
>  # can't be detected by this program.
> done
>
>
> ------------------------------------------------------------------------------
> r...@dougshome:~# scanimage -L
>
> ------------------------------------------------------------------------------
> WARNING: Unhandled message: interface=org.freedesktop.DBus.Introspectable,
> path=/, member=Introspect
> device `snapscan:libusb:001:003' is a EPSON EPSON Scanner flatbed scanner
>
>
> ------------------------------------------------------------------------------
>
> If I find a solution, I'll be sure to pass it along.  I may try the
> downgrading to 0.93 and then
> re-installing 0.96.
>
> --
> failed to start scanner: Invalid argument
> https://bugs.launchpad.net/bugs/478761
> You received this bug notification because you are a direct subscriber
> of the bug.
>

-- 
failed to start scanner: Invalid argument
https://bugs.launchpad.net/bugs/478761
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