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

Stef stef.dev at free.fr
Fri Jul 11 04:52:29 UTC 2014

On 11/07/2014 06:43, Toni LdG wrote:
> Hi
> Yes, no problem. Whatever is needed.
> Just at the end of the day will upload the dumps and post them here.
> Is there any chance of that over exposure to be caused by dust or dirt 
> in the calibration area?
> Regards.
> On 11 de julio de 2014 06:31:22 CEST, Stef <stef.dev at free.fr> wrote:
>     On 10/07/2014 19:36, Toni LDG wrote:
>         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.
>         https://mega.co.nz/#F!ostGBBJB!xXrYt8os6cnqH1CmXKUIHA
>         <https://mega.co.nz/#F%21ostGBBJB%21xXrYt8os6cnqH1CmXKUIHA>
>         <https://mega.co.nz/#F%21ostGBBJB%21xXrYt8os6cnqH1CmXKUIHA>
>         Kind regards and thanks for the help.
>           Hello,
>           if you look at the white_sading.pnm, you can see an over exposed
>     area that matches the one you're seeing on final scans. I have to find
>     what is going on.
>           Is there a  chance you can run usbsniff or whireshark to records
>     windows drive
>       r
>     activity during a scan?
>     Regards,
>           Stef
> -- 
> Enviado desde mi teléfono con K-9 Mail. 


     I can't say for now. Currently the backend doesn't tune gain and 
offset on the analog frontend, maybe it is needed now, this is why a log 
would be great.
     Since you have good quality scans with windows driver, there is 
something to improve in the genesys backend.

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