[sane-devel] Canon DR-2580C only low resolutions

[m. allan noah]

Yes- i think there is some problem with the calibration code on these
machines, at higher resolutions the calibration is done differently
than in lower resolutions. Perhaps the old version of the code did
different calibration. How about telling which version of
sane-backends is in use on your two systems?

allan

On Fri, May 24, 2013 at 11:05 AM, Carl Davis <carl at carldavis.com> wrote:
> Hello,
>
> I have a Canon DR-2580C. If I scan at anything above a –resolution of 240 my
> attempted scan fails with:
>
> "scanimage: open of device canon_dr:libusb:001:012 failed: Invalid argument"
>
> This problem does not exist on 12.04(1.0.22-7ubuntu1) but does on 12.10 and
> 13.04 (1.0.23-0ubuntu1). I have run:
>
> "SANE_DEBUG_CANON_DR=30 scanimage --resolution=300 > 2580-1.pnm
> 2>2580-13.04.log"
>
> and attached the log file to this email. I have also run the same command on
> 12.04 (which succeeds) but it is 8MB bzipped so I won't attach it to list
> mail unless requested.
>
>
> Thanks,
>
> Carl
>
>
>
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