[sane-devel] ADF for HP7450c and Black image

[Angela Corridore]

Hi,

I'm triying to use ADF switch on OS/2-Warp4 system with HP7450c, the command
I'm using is :
	scanimage -d avision --format=tiff  --resolution=80 --adf=yes 1>a.tif 2>2.L

When I do this, my scanner hang up initializing. I tried it with sane
backend version 1.0.11 and 1.0.12 and I get the same result.
Is there any problem with this ADF swicth or do I miss something ?

Beside that, When I tried to scan with the new backend version (1.0.12)
using the same parameters as the previous version (1.0.11) I get a black
image.  The command I'm using is :

	scanimage -d avision --format=tiff  --resolution=80 1>a.tif 2>2.L

Is there any difference between both versions that causes this result ?

Thanks for your help...
Angela