Hi Winni, I don't know if it can help you, but it seems the same problem described here:
https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/83957 I had this problem too, with a N650U on Ubuntu 10.04, and still don't have a solution (by the way, my problem now is that the scanner is not even recognized in Ubuntu 12.04: see https://bugs.launchpad.net/bugs/361278 ) Best regards, Andrea Il giorno dom, 11/08/2013 alle 20.25 +0200, Winni ha scritto: > Hi, > > I tried with different dpi resolutions. Most of the time it starts with > the horrible noise but sometimes it works. I'd say every 5th try works. > Even calibrating under XSane results in that noise... > > I searched for a plustek config file but could not find it. > > By the way, there is a hint about "awfull noise" in the FAQ.gz at > /usr/share/doc/libsane/plustek/ > > > > SYMPTOM: Scanner makes awful noise > > -------- > > > > PROBLEM: > > -------- > > This can have two major causes: > > - You have an ASIC96001/3 based scanner, then the sensor hits the > > scanbed: !!! TURN OFF SCANNER POWER !!! > > > > - You have an ASIC98001 based scanner, then the motor control does > > not work correctly --> hit the cancel button > > > > SOLUTION: > > --------- > > For the first case (ASIC 96001/3), there's no solution available. This > > happens, when the driver can't keep track of the stepper motor. The image > > you get is normally unusable. > > The second case is often reported when the printer driver lp.o is > > already loaded. So remove lp.o before loading pt_drv. > > > Regards, > Winni > >
