[sane-devel] Epson W- 2630 – with ADF scan area is shifted 5.9 mm to the left

[Olaf Meeuwissen]

Hi Ulf,

Ulf Zibis writes:

> Hi,
>
> scanning DIN A4 a paper sheet from the flatbed works correctly, but when
> using the ADF the scan area is shifted 6 mm to the left, i.e on the left
> side of the scan there are missing 5.9 mm of the original and on the
> right side there is a 5.9 mm black border.
>
> The cause seems clear: The scan unit area is 215.9 mm = 8.5" but a DIN
> A4 paper sheet is only 210 mm. When using the ADF, a DIN A4 paper sheet
> is mechanically shifted to the right edge of the scan unit area. But the
> driver or the SANE-framework does not recognize this offset correctly.
>
> I'm using Ubuntu 18.04 and installed the drivers from here:
> http://download.ebz.epson.net/dsc/search/01/search/searchModule

# Full disclosure: I wrote most of that "driver"'s code but have not
# been involved in it's development since 2016-04-01.

Based on my fading understanding of that "driver"'s source code, this
**should** be taken care of automatically by the driver.

> Ho can I tweak the SANE configuration to correct the offset?

Please submit an issue at

  https://gitlab.com/utsushi/utsushi

which is a Community Code Base fork of the upstream you installed that I
still somewhat "maintain" in my free time.

When you do, please include your device's USB product ID (lsusb should
tell you what it is) and the distribution you use.
If you feel adventurous, clone the code and build from source (see the
README for instructions, build takes a while and may require up to 2GB
of RAM!) and attach a log to your issue.

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