[sane-devel] CANON LIDE 220

[Kis Janos]

Hi,

thanks for the answer

unfortunately the scanner is still not stable

I use this command:

scanimage -t 50 -l 80 -x 35 -y 5 -v -p --resolution=4800 --format=tiff > 
pic.tif

it makes some noise, little movement than it stops forever
after ca 10 sec I do ctrl-c, it is saying " trying to stop scanner..."
than it scans the image, shows properly progress, save it, and stop the 
head in the middle (doesnt park it)
if I do scanimage -L for example, than it parks head properly

it seems to me, may be there is a bug in the backend....
I see in the code there is en extensive debugging/logging facility - 
could you give me some hints how to activate/use it? than I could share 
with you the log


thanks

Janos



On 2016.03.22. 21:24, Stef wrote:
> On 18/03/2016 11:22, Kis Janos wrote:
>> Hi,
>>
>> 1.,
>>
>> in
>>
>> genesys_devices.c
>>
>> has
>>
>>   /* CANON LIDE 220 sensor */
>>   {CIS_CANONLIDE220,
>>    2400,        /* optical resolution */
>>
>> the optical resolution is actually 4800 DPI
>>
>>
>> 2.,
>>
>> When I am using imagescan at 4800 DPI resolution, the head moves ca. 
>> 10 second slowly before starting scan.
>>
>>  J
>>
>>
>
>     Hello,
>
>     this is the expected behavior. Before doing the final scan, a 
> calibration scan is done. At maximum resolution this takes time. Check 
> in the advanced options that calibration cache is activated. So 
> calibration happens once in a scanning session.
>
> Regards,
>     Stef
>