Still trying for colour: This time, after --help, I tried the command: scanimage --format=pnm --mode col > img3.pnm
a few times. Sometimes it made a bad noise so I did not wish to try too often. Sometimes it gave an error message. (I dont recall it exactly but it complained of bad input. and only produced a small file, and after that it was was not reported by lsusb until the scanner was re-powered. Sometimes it produced a file sized about 27MB. - mostly zeros. Opening that img3.pnm in Gimp, it was very dark, near black, but some sign of the image could be seen. Gimp reported dimensions 2598x3510. I may try going back to the Elcot driver by re-activativating the hp2400 entry in dll.conf and commenting out the one in genesys.conf. What do you advise? Regards, Bertie