Dear experts,
maybe you can help me, few days I am struggling with lost access to my 2 scanners (Epson SX400 and Cannon MF3010). I put here some findings, https://answers.launchpad.net/ubuntu/+source/sane-backends/+question/240955 . Shortly, "sudo sane-find-scanner" detects these scanners sitting on USB ports, but "sudo scanimage -L" gives no scanner detected. (Strange that I am getting "could not fetch string descriptor: Pipe error", could it be this the cause ?) I checked SANE manual, reinstalled packages few times (I am using newest ppa for ?sane-backends?), searched internet... Even when I returned to older (Ubuntu 13.10 default) version of ?sane-backends?, the Epson SX400, which was working previously, was not detected...The same symptoms - scanner is detected as device on usb port, but not detected as scanner for real work. What could be wrong ? What commands shall I check ? Seems the problem is not in newest ?sane-backends?, but elsewhere in the system.... Thanks, Miro
