[sane-devel] Epson Perfection V500 Photo - Problems scanning slides - Does anyone know how to contact Epson developers?

Olaf Meeuwissen paddy-hack at member.fsf.org
Mon Aug 12 13:51:11 BST 2019

Hi Maik,

Maik Wagner writes:

> Hello everyone,
> I am having problems with the device above: iscan does warm up the
> scanner and it also possible to get a preview scan for flatbed.
> However this device also has a translucent unit for slides and negatives
> but I can't get this to work.
> I am more than happy to supply more information but don't get any
> console output with xsane. For preview scans (flatbed) a window with
> "Couldn't start scanner - invalid argument" pops up an there is no
> console output.

>From memory, there was an issue with the default resolution sometimes
not being supported by the hardware.  That could trigger the above.
Have you tried other resolutions, e.g. 300dpi?

> Is there any way to get debug output for you developers from console or
> do you know of a way how to contact Epson developers so I can report this?

The EPSON contact info should be in either the package information or in
the source tarball's configure.ac.  That's assuming it is still valid
and someone's paying attention to it.

To get debug output, use something like


or use scanimage with a suitable option for the transparency support
(with that environment variable set as above).

> Epsons original iscan doesn't work with slides settings. This is why I
> posted the question for recompiling iscan a few days earlier.

Odd.  Last I worked on iscan, transparencies worked "Just Fine".  That
was an admittedly long time ago (8, 9 years ago?) but I believe iscan
hasn't changed much after that and hasn't seen any new releases in the
last 3 or 4 years.

Hope this helps,
Olaf Meeuwissen, LPIC-2            FSF Associate Member since 2004-01-27
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