Hi, I've got some problems with the Canon DR-2580C scanner: It doesn't recognize the size of the paper(which is Din A4) correctly but cuts off the bottom.
Setting the size via -x/-y doesn't work, since these values are reset to the predefined maximums (215, 279). In sum the front side is missing 1 to 2 cm at the bottom. Additionally the back side has a y-offset, so it starts about 2-3 cm late and is therefore missing 3-5 cm. Another thing is: The back side it slightly rotated even if the front page is all straight. Furthermore: Various(i.e. i tested all possible) combinations of swcrop, swdeskew and rollerdeskew do not work as expected. Especially deskew rotates the page (mostly the back side, as this is rotated slightly as mentioned above) into the wrong direction; so afterwards it's even more inclined than before. Still the last thing wouldn't be that a problem to me, since one could do that via some software after the scan. The main thing is the missing data at the bottom of the page. Mostly used scanimage; with different resolutions, modes, parameters for x,y,t,l and deskew-options. I tested some gui tools as well (though gscan2pdf seems to be the only one, supporting duplex; it shows those problems as well): scanimage --mode Gray --source "ADF Duplex" --resolution 200 --batch-count=2 --batch=s%d.pnm Version information: (debian wheezy) :~$ dpkg --list | grep sane ii libsane 1.0.22-6 API library for scanners ii libsane-common 1.0.22-6 API library for scanners -- documentation and support files ii libsane-extras 1.0.22.2 API library for scanners -- extra backends ii libsane-extras-common 1.0.22.2 API library for scanners -- documentation and support files ii libsane-perl 0.03-1+b1 Perl bindings for the SANE (Scanner Access Now Easy) Project ii sane-utils 1.0.22-6 API library for scanners -- utilities :~$ scanimage -V scanimage (sane-backends) 1.0.22; backend version 1.0.22 :~$ lsusb | grep Canon Bus 001 Device 046: ID 04a9:1608 Canon, Inc. I'd have attached a example scan consisting of front and back side (50kb each); not sure whether this 'd be ok on this list? Please let me know what more information would be needful or which tests i could do. Thanks for any help in advance. kind regards, Max