[sane-devel] blank page scanned with CanoScan LiDE25

[m. allan noah]

perhaps try to sudo your scanimage command. if that helps, then you
need more permissions, perhaps adding yourself to group scanner will
be enough.

allan

On Mon, Oct 20, 2008 at 2:13 PM, Y P <yellow.penguin at edpnet.be> wrote:
> Hello SANE-people,
>
> can someone help advising me ?
>
> - my scanner is a new Canon CanoScan LiDE25
> - my distro is Ubuntu Hardy
> - I use the sane-utils since I'm blind and 99.9% commandline user
> - the device seem to scan but the scanned page is blank;
> these are more details:
>
> # What's already installed or have been added:
> aldo at ubu:~$ dpkg -l |grep sane
> ii  libsane                                    1.0.19-1ubuntu3                          API library for scanners
>
> ii  sane-utils                                 1.0.19-1ubuntu3                          API library for scanners -- utilities
>
> (added by me)
> ii  xsane                                      0.995-1ubuntu1                           featureful graphical frontend for SANE (Scan
>
> ii  xsane-common                               0.995-1ubuntu1                           featureful graphical frontend for SANE (Scan
>
>
> # Test to see which groups the major user is being member of:
> aldo at ubu:~$ groups
> aldo adm dialout cdrom floppy audio dip video plugdev fuse lpadmin admin
>
> (I don't know if I must addgroup scanner and adduser aldo scanner ?
>
> aldo at ubu:~$ lsusb
> Bus 005 Device 001: ID 0000:0000
>
> Bus 004 Device 001: ID 0000:0000
>
> Bus 003 Device 002: ID 046d:c310 Logitech, Inc.
>
> Bus 003 Device 001: ID 0000:0000
>
> Bus 002 Device 002: ID 0a5c:2101 Broadcom Corp.
>
> Bus 002 Device 001: ID 0000:0000
>
> Bus 001 Device 005: ID 04a9:2220 Canon, Inc.
>
> Bus 001 Device 003: ID 05e3:0606 Genesys Logic, Inc. D-Link DUB-H4 USB 2.0 Hub
>
> Bus 001 Device 001: ID 0000:0000
>
> (the device is detected)
>
> aldo at ubu:~$ 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, product=0x2220, chip=LM983x?) at libusb:001:005
>
>  # 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.
>
>
>
>  # You may want to run this program as root to find all devices. Once you
>
>  # found the scanner devices, be sure to adjust access permissions as
>
>  # necessary.
>
> (its type is USB, so that's OK)
>
> # now as user:
> aldo at ubu:~$ scanimage -L
>
>
> No scanners were identified. If you were expecting something different,
>
> check that the scanner is plugged in, turned on and detected by the
>
> sane-find-scanner tool (if appropriate). Please read the documentation
>
> which came with this software (README, FAQ, manpages).
>
>
> # As sudo:
> aldo at ubu:~$ sudo scanimage -L
> [sudo] password for aldo:
> device `plustek:libusb:001:005' is a Canon CanoScan LiDE25 flatbed scanner
>
>
> Now if I do:
> scanimage -v -p -l 0 -t 0 -x 215 -y 297 --mode Gray --format tiff --resolution 600 >/tmp/tmp.tiff
> convert /tmp/tmp.tiff oout.jpg
>
> it seems to scan, but friends are telling me the scanned doc is empty.
>
> I don't see what is wrong?
>
> Grtnx,
>
> Aldo.
>
>
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