[sane-devel] What happens with Epson support?

[Olaf Meeuwissen]

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Merging all three posts on the subject.

On 2010-07-25 22:24, m. allan noah wrote:
> There have been very few changes to epson backend since 1.0.19, so I 
> am surprised it did not work in later versions.

The changes in the epson backend between 1.0.19 and 1.0.20 and between
1.0.20 and 1.0.21 are so trivial there is no reason that that backend no
longer works with either scanner mentioned below.
Of course, it doesn't get built with 1.0.21 so people are "stuck" with
the epson2 backend.

> Epson2 has a known issue in 1.0.21, which is still waiting on a fix,
> IIRC.

This bug is fairly annoying.  It affects are growing number of Epson
scanners.  Any idea when a fix will be forthcoming?

People could alternatively try the epkowa backend which comes with Image
Scan! for Linux.  Available from:

  http://avasys.jp/eng/linux_driver/

Just make sure you pick the download menu that corresponds to your type
of device.  Models for the Japanese market are available via:

  http://avasys.jp/download/

> Any chance you could get a log of the epson2 backend from a current 
> git snapshot?
> 
> allan

On 2010-07-25 16:22 Full Name wrote:
> I too have an Epson issues like Mogens below - I had to downgrade
> libsane to 1.0.19 to continue to use my Epson Stylus CX3200 
> (CC-570L). (using MEPIS 8.5 and gscan2pdf)
> Cheers, Bill

The Epson Stylus CX3200 is not listed anywhere on our download pages but
if you select the CX3500 you should be fine.  Note though that Image
Scan! for Linux has not been pushed through our testing program with the
CX3200.  Also, we have not done any testing on MEPIS.

On Sat, Jul 24, 2010 at 7:04 AM, Mogens Jæger <mogensjaeger at gmail.com>
wrote:
> Hello list
> 
> I have for some years now used my Epson Perfection 2450 Photo (or
> - GT9700F) scanner without any problems, on my Linux 64 bit
> machine.
> 
> But since I upgraded to the new Suse 11.3 (sane-backends 1.0.21), 
> the scanner does not work. No matter if I use the old (=no longer 
> maintained?) 'epson' or the newer 'epson2' drivers.

Are you sure the epson backend is included in SUSE's sane-backends
1.0.21 package?  If so,

> I tried to use the driver from package 'iscan-free' - no help.

The latest upstream version for Image Scan! for Linux (iscan) is 2.25.0.
 What version is SUSE's iscan-free?
You could give the latest upstream iscan packages a spin.

> The scanner gets recognized by setup, but at use, different types 
> of errors, mostly Xsane just terminates.
> 
> I started to go backwards in 'history', and when I reached 
> sane-backends 1.0.19-99, it works again.

Which backend(s)?  The epson backend, epson2 or both?

> Why this - is it a bug, and where/how to go on?

As Allen suggested, logs may be helpful answering that but I'd prefer
logs generated using the distribution's package over a git snapshot.
This ought to do the trick for the epson backend.

  SANE_DEBUG_EPSON=127 scanimage > image 2> epson.log

Just replace the backend names for epson2 and/or epkowa.

> Thanks in advance.
> 
> Mogens Jæger

Hope this helps,
- -- 
Olaf Meeuwissen, LPIC-2           FLOSS Engineer -- AVASYS CORPORATION
FSF Associate Member #1962               Help support software freedom
                 http://www.fsf.org/jf?referrer=1962
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