[sane-devel] Epson Perfection 1670 scanner problems at resolution greater than 600 DPI

[Jeff Silverman]

>The procedure also describes a problem: the registration of the colors 
>breaks down at densities beyound 600 DPI.  Curiously, the problem is 
>worse at 900 DPI than at 1200 DPI.  I have an example - to avoid 
>flooding this list, I put the examples on the 
>http://www.commercialventvac.com/~jeffs/epson1670andFedora.html page.
>
>    The box the scanner came in says that the resolution can go to 
>1600x3200 DPI but xsane doesn't seem to believe that


I changed the page to have thumbnails.

I have been doing more testing and the problem is reproducible even when I am scanning something as small as 603x610 pixels at 900 DPI.  I also tried scanning in gray scale at more than 900 DPI and it appears that the image is clipped at the right boundary.

I can live with this, but, I'd like to help fix it.  Any advice?


Many thanks,



Jeff