SANE Scanner Access Now Easy                    sane-canon630u(5)



NAME
     sane-canon630u - SANE backend for the Canon 630u USB flatbed
     scanner

DESCRIPTION
     The sane-canon630u library implements a SANE (Scanner Access
     Now  Easy)  backend  that  provides  access to the following
     Canon flatbed scanners:

          CanoScan 630u
          CanoScan 636u

     Color scanning is supported at 75, 150, 300,  and  600  dpi,
     and gamma and analog gain are adjustable.

     TESTERS ARE WELCOME. Send your bug reports and  comments  to
     Nathan Rutman 

CONFIGURATION
     The contents of the canon630u.conf file is a list of  device
     names  that  correspond  to Canon USB scanners.  Empty lines
     and lines starting with a hash mark (#) are  ignored.   Only
     one  device  name can be listed in canon630u.conf.  The pro-
     gram sane-find-scanner helps to find out the correct device.
     Under  Linux,  such a device name could be /dev/usb/scanner0
     for example.  See sane-usb(5) for details.

     This product-specific scanner driver  uses  the  lower-level
     kernel  USB driver "scanner".  Check for "Driver=usbscanner"
     under /proc/bus/usb/devices.  If "Driver=(none)", try  forc-
     ing it with "insmod scanner vendor=0x04a9 product=0x2204"

NOTES
     Due to Canon's unwillingness to provide  scanner  documenta-
     tion,  this  software  was  developed  by  analyzing the USB
     traffic of the Windows 2000  driver.   So  things  like  the
     calibration  procedure  I  kind of made up; it seems to work
     for my scanner.  If you have complaints, let me know.

     This driver requires the ability to send  USB  Control  Mes-
     sages, available in kernel 2.4.12 or later.

     Some users have reported that this driver  doesn't  work  at
     all.  This seems to be a hardware specific issue, although I
     don't know what exactly the problem is.  If you  are  having
     problems,  please send me the info in /proc/bus/usb/devices,
     /proc/pci,  the  kernel  scanner.c   driver   version   from
     /var/log/messages,       and       the      output      from
     "SANEDEBUGCANON630U=12 scanimage > /dev/null"

FILES
     /etc/sane.d/canon630u.conf



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SANE Scanner Access Now Easy                    sane-canon630u(5)



          The backend configuration file (see also description of
          SANECONFIGDIR below).

     /usr/lib/sane/libsane-canon630u.a
          The static library implementing this backend.

     /usr/lib/sane/libsane-canon630u.so
          The shared library implementing this  backend  (present
          on systems that support dynamic loading).

     /tmp/canon.cal
          The calibration file used to  normalize  pixel  bright-
          ness.   This  is  calculated  every time the scanner is
          first used after it has lost power.  Deleting this file
          will force recalibration.

ENVIRONMENT
     SANECONFIGDIR
          This environment variable specifies the list of  direc-
          tories  that may contain the configuration file.  Under
          UNIX, the directories are separated by a  colon  (`:'),
          under  OS/2,  they are separated by a semi-colon (`;').
          If this variable is not set, the configuration file  is
          searched in two default directories: first, the current
          working directory (".") and then  in  /etc/sane.d.   If
          the  value  of  the  environment variable ends with the
          directory separator character, then the default  direc-
          tories  are  searched  after  the  explicitly specified
          directories.  For example, setting  SANECONFIGDIR  to
          "/tmp/config:"     would    result    in    directories
          "tmp/config", ".", and "/etc/sane.d" being searched (in
          this order).

     SANEDEBUGCANON630U
          If the library was compiled with debug support enabled,
          this  environment variable controls the debug level for
          this backend.  Higher debug levels increase the verbos-
          ity of the output.

          Example:
          SANEDEBUGCANON630U=12 scanimage > /dev/null

SEE ALSO
     sane(7), sane-usb(5), sane-find-scanner(1)
     http:/canon-fb630u.sourceforge.net/

AUTHOR
     Nathan Rutman


ATRIBUTES
     See  attributes(5)  for  descriptions   of   the   following



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SANE Scanner Access Now Easy                    sane-canon630u(5)



     attributes:

     
       ATRIBUTE TYPE     ATRIBUTE VALUE 
    
     Availability         SUNWsane-backend
    
     Interface Stability  Uncommitted     
    

NOTES
     Source for SANE is available on http:/opensolaris.org.











































sane-backends 1.0.19Last change: 06 Apr 2002                    3