I used the calibration sheet that came in the box with the used scanner. (Found at a charity thrift store for $3USD :-) )
It's a white bar with three black arrows indicating direction, a big white space, followed by a black space. The whole thing is approx. half of a US letter-sized sheet. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1712663 Title: Visioneer RoadWarrior Scanner [Sane] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/simple-scan/+bug/1712663/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs