[sane-devel] Sane with Samsung CLX-3170fn

[Michael Whapples]

Thanks for the response.

I was talking as a user, so may be my description of paper state might 
not have been strictly correct. What I meant was that the document 
feeder will take each page through and when the last one has been taken 
through scanadf seems to have problems when using the xerox_mfp driver 
(either it causes the CLX-3170fn to restart and an extra image file is 
made as if there is one more page than there was or scanadf keeps adding 
more images as if there is an infinite number of pages (I never reached 
an end it went to over 1000 at which point I managed to kill scanadf) 
(the CLX3170fn doesn't try and do anything for these extra pages). If I 
set --end-count to the number of pages scanadf exits correctly when 
using the xerox_mfp driver. So it seems the xerox_mfp driver doesn't 
raise the right error when the CLX-3170fn document feeder is empty.

The samsung drivers work fine to detect the document feeder being empty 
but there is that issue with it not creating the image properly 
(assumeably related to the warning it gives when using it with scanimage).

Another thing I have noticed is that when using scanadf with the 
xerox_mfp driver the CLX-3170fn gives the beeps as if it has finished 
scanning between each page when using scanadf where as the samsung 
driver doesn't. This isn't really a problem, I just wonder whether this 
might help in working out some of the problems. As a note: the samsung 
twain drivers on windows makes the device give the beeps between pages 
when I use the document feeder with scansoft's omnipage, and this 
doesn't cause a problem with finding the document feeder as empty.

Michael Whapples
On -10/01/37 20:59, ABC wrote:
> On Tue, May 19, 2009 at 08:34:04PM +0400, ABC wrote:
>    
>> On Tue, May 19, 2009 at 04:43:43PM +0100, Michael Whapples wrote:
>>      
>>> It appears that using the xerox_mfp driver scanadf doesn't detect
>>> the paper state in the document feeder
>>>        
>> I think it is scanadf feature that it doesn't detect paper state, it
>> just scans as much as it can, under divice error.
>>      
> .. until device error, such as 'no paper'.
>
>    
>> And also AFAIK scanadf
>> doensn't pass options to SANE driver (to chose paper source for example).
>>      
> Maybe you can use scanimage instead of scanadf.
>
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