[sane-devel] Vertical Comb effect on Epson 2580 scan at 2400 dpi

[Brad Johnson]

Hello,



I have an Epson Perfection 2580 Photo and when scanning at 50-1200 dpi I get good scans, but when scanning at 2400 dpi I get a vertical comb effect. Every other line is shifted 4 pixels down.



So when I'm expecting a set of pixels like this:

.....

.....

OOOOO

OOOOO

OOOOO

OOOOO



This is what I get:

.....

O.O.O

O.O.O

O.O.O

O.O.O

OOOOO



I am running sane built from today's CVS.



I know support for this scanner is still being worked on, but any ideas?



thanks,

Brad Johnson