[sane-devel] genesys: canon lide 210 produces black color scans

Stef stef.dev at free.fr
Sat Nov 19 07:24:18 UTC 2011

Le jeudi 17 novembre 2011 21:28:31 Jiri Slaby a écrit :

> > working scan ?
> Hi, at
>   http://www.fi.muni.cz/~xslaby/sklad/lide210-dark/
> there are ok_machine.log and bad_machine.log.
> thanks,


	Ihave compared both logs. The only difference is that there is a longer 
wait period for data (about 56 seconds if my maths are ok) for the machine 
with 'black' scans. The ASIC could be timing out and sending void data.
	To investigate further an USB level logwould be needed. It can be 
generated by adding export SANE_DEBUG_SANEI_USB=255 before running scanimage. 
But this will create a huge amount of data. Maybe there are some interesting 
messages to be found with 'dmesg'.


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