Mechanical part stops moving after each operation

[Jose Gómez]

The scanner only does the first operation after I plug it in. E.g. preview a page, or scan it. On the second operation, the mechanical part does not move anymore (there is no noise whatsoever from the scanner), and the scan output is pitch black.

The workaround I have found is to run scanimage -L between each operation. I.e.:

- Start Xsane
- Preview
- run scanimage -L
- Scan
- run scanimage -L
- Preview
- run scanimage -L
- Scan
...

I am using SANE git from Rolf's PPA, since I was before affected by bug https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1250196 since I got a new computer.

Output of sudo sane-find-scanner:

  # sane-find-scanner will now attempt to detect your scanner. If the
  # result is different from what you expected, first make sure your
  # scanner is powered up and properly connected to your computer.

  # No SCSI scanners found. If you expected something different, make sure that
  # you have loaded a kernel SCSI driver for your SCSI adapter.

found USB scanner (vendor=0x04a9 [Canon], product=0x220e [CanoScan], chip=LM9832/3) at libusb:001:011
  # Your USB scanner was (probably) detected. It may or may not be supported by
  # SANE. Try scanimage -L and read the backend's manpage.

  # Not checking for parallel port scanners.

  # Most Scanners connected to the parallel port or other proprietary ports
  # can't be detected by this program.

Output of scanimage -L:

device `v4l:/dev/video0' is a Noname Integrated_Webcam_HD virtual device
device `plustek:libusb:001:011' is a Canon CanoScan N1240U/LiDE30 flatbed scanner
device `hpaio:/net/Officejet_6800?ip=192.168.1.251' is a Hewlett-Packard Officejet_6800 all-in-one

[Jose Gómez (adler-dreamcoder)]

Edit: the workaround above only seems to work sometimes. Most of the time the scanner will remain dead.

[Jose Gómez (adler-dreamcoder)]

Tested with a USB hub; doesn't make any difference.

[Jose Gómez (adler-dreamcoder)]

I only get a message saying "No additional information collected".

[Jose Gómez (adler-dreamcoder)]

It looks like there is no sane-backends package does no longer exist in my system.

[Jose Gómez (adler-dreamcoder)]

Yeah that issue is mentioned in https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1656599

[Jose Gómez (adler-dreamcoder)]

Upgraded to version 1.0.26-git20160712-yakkety0, as in https://launchpad.net/~rolfbensch/+archive/ubuntu/sane-git. Same result as a year ago: there is no physical response by the scanner.

[Rolf Leggewie (r0lf)]

sounds similar to bug 1532582 and bug 1184699

[Jose Gómez (adler-dreamcoder)]

Maybe. Though, to be honest, I'd say the scanner works worse now than it did some time ago. Now I cannot even get the first operation to work.

[penalvch (penalvch)]

Jose Gómez, to clarify, which releases of Ubuntu has this been reproducible with?

[Jose Gómez (adler-dreamcoder)]

I think all of them. It used to work perfectly in my old, USB2-based laptop; tested with Ubuntu until 14.10. But in the new laptop (which I got in early 2015), it almost never worked fine with any Ubuntu version.

As part of bug https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1250196, I upgraded to an version updated in git, and it did work for a while. But some time later it stopped working again.

As per my own comments in the above bug, it did work around 2014-12-29 to 2015-08-25.