[sane-devel] acer 3300u scanner - lineart mode problem

[Oliver Schwartz]

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Hi,

> Problem is that my acer 3300u scanner, is not working in lineart
> mode. Images are good for grayscale and color. 

It's working fine here on my Acer Prisa 620. Since lineart is not very 
thoroughly tested (few people seem to use it) it's possible that it 
never worked on the 3300u.

Unfortunately I don't have access to an 3300u. Could you send me a 
debug log of a lineart scan?

To produce it, run 
SANE_DEBUG_SNAPSCAN=255 xscanimage 2>debug.log
select a small scan area and a low resolution and scan an image. Exit 
xscanimage and send me the debug.log file. It would also be helpful 
if you could include the image file, once as lineart, once as 
grayscale.

It may also be neccessary to get an USB trace of a windows scanning 
session, but maybe the debug log is sufficient.

- -Oliver
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