[sane-devel] sane-sp15c and Fujitsu 620c ADF double-page feed

[Frank Zago]

Garrick Sitongia wrote:
> When I put many docs in the ADF, sane will scan the 1st, eject it, then 
> it will feed the next straight through without scanning it, scan the 
> 3rd, feed the 4th through, scan the 5th, etc. How do we get it to stop 
> scanning only every other document?
> 
> I have done this:
> 
> "export SANE_DEBUG_SP15C=25"
> 
> then
> 
> "scanimage --mode 8-bit --format=tiff --resolution 240 --y-resolution 
> 240 --source ADF --batch -y 270"
> 
> It seems to eject the odd pages when doing a "sp15c_object_discharge".

May be this particular scanner is doing it by itself.
A shot in the dark: in sp15c_free_scanner(), remove the following lines:
   ret = sp15c_object_discharge (s);
   if (ret)
     return ret;

recompile sane and try again.

(I know nothing about that scanner, and I'm not the maintainer of that backend).

Frank.