I am trying to use the Transparency Unit on my Epson Perfection 2450. I am using sane 1.0.19 on Ubuntu Jaunty, with the epson2 backend.
Scanning regular pictures seems to work OK, but as soon as I try to use the transparency unit, I get a "scanimage: sane_start: Error during device I/O". I have tried xsane and using scanimage on the command line. Here is the command-line I used: scanimage --focus-position 'Focus 2.5mm above glass' --source 'Transparency Unit' --film-type 'Negative Film' --brightness 0 -x 26mm -y 38mm -l 7mm -t 40.5mm --resolution 300 --mode Color --depth 16 --format tiff > test.tiff Any ideas? thanks, Marc.