[sane-devel] Epson Perfetion 2480 scanner

[Michael Polenske]

Hi Oliver,

I made the same changes like Alexis made and I can confirm that I also can now scan color and grayscale. LineArt I haven't tried yet, but because Alexis already reported that this is also working I won't try it now.

Thank you _very_ much !

best regards,
Michael



On Thu, 26 Aug 2004 08:31:43 +0200 (MEST)
"Oliver Schwartz" <Oliver.Schwartz@gmx.de> wrote:

> Hi,
> 
> > > Moreover the perfection 2480 can scan in 2400 dpi, the 1670 only
> > > in 1600.
> > 
> > Maybe that's the problem ?
> 
> Probably yes.
> 
> The quick and dirty hack to fix it is to replace the following code in
> snapscan-scsi.c:
> 
>     switch (pss->pdev->model)
>     {
>         case PRISA5000:
>             pos_factor = (pss->res > 600) ?  1200 : 600;
>             break;
>         case PERFECTION1670:
>             pos_factor = (pss->res > 800) ?  1600 : 800;
>             break;
>         default:
>             break;
>     }
> 
> with this one:
> 
>     switch (pss->pdev->model)
>     {
>         case PRISA5000:
>             pos_factor = (pss->res > 600) ?  1200 : 600;
>             break;
>         case PERFECTION1670:
>             pos_factor = (pss->res > 1200) ?  2400 : 1200;
>             break;
>         default:
>             break;
>     }
> 
> 
> If you want to use higher resolutions you should also replace the
> following line in snapscan-options.c:
> 
>     static SANE_Word resolutions_1600[] =
>         {10, 50, 75, 100, 150, 200, 300, 400, 600, 800, 1600};
> 
> with
> 
>     static SANE_Word resolutions_1600[] =
>         {11, 50, 75, 100, 150, 200, 300, 400, 600, 800, 1200, 2400};
> 
> 
> After applying the changes, run "touch snapscan.c", "make" and "make
> install" again.
> This should allow scanning in all resolutions with the right scanning
> areas. Please test it and let me know the results. Please also try
> grayscale and lineart mode, there were some problems reported for the
> 1670.
> 
> The clean solutions is to add a new SnapScan_Model PERFECTION2480 in
> snapscan.h and change the snapscan*.c files accordingly. I'll submit
> the neccessary changes to CVS next week when I'm back at home.
> 
> /Oliver
> 
> 
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-- 
================================================
Michael Polenske                  System Analyst
   NEC High Performance Computing Europe GmbH
Prinzenallee 11     D-40549 Duesseldorf, Germany
Tel: +49 211 5369 145     mpolenske@hpce.nec.com
Fax: +49 211 5369 199    http://www.hpce.nec.com
             GPG / PGP-Key available
		AIM: polenskeHPCE
================================================