[sane-devel] Canoscan Lide 210 - Green Bands on the left margin

Toni LDG bulkdata at gmail.com
Thu Jul 10 17:36:43 UTC 2014

Hi Stef

   Here is a link to a Mega directory with all the files. It also includes
a new scan linuxdebugscan5.pnm of the last document sample.


Kind regards and thanks for the help.

2014-07-10 6:22 GMT+02:00 Stef <stef.dev at free.fr>:

> On 09/07/2014 06:59, Toni LDG wrote:
>> Hi Stef
>> in order to notice tne lines let me describe them a little more.
>> the green lines are very very light,  mostly seen in white/clear zones of
>> the image, not on dark ones. and are always on the left side of the image,
>> at about 1 cm from the left margin. they go from top to bottom of the scan,
>> At least this is how i see them :-P (hope is not only a paranoia of mine
>> :-D )
>> i've enabled debugging as instructed and created 5 new scans with the
>> command posted. Some of the scans, (number 2 and 4) are mostly white, in
>> order to see the issue in more detail.
>>      Hello,
>     beside log file, there are also other *.pnm files created during
> calibration (in the working directory where the scanimage command is ran).
> Can you send them ? What I suspect is that there could be some color
> pattern (some kind of notch) in a area expected to be white. So shading
> calibration is wrong and leads to the artifact on the scanned picture.
> Regards,
>     Stef
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