[sane-devel] blank page scanned with CanoScan LiDE25

Y P yellow.penguin at edpnet.be
Mon Oct 20 18:13:22 UTC 2008

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?



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