SANE Scanner Access Now Easy                          sane-leo(5)



NAME
     sane-leo - SANE backend for LEO Technologies scanners

DESCRIPTION
     The sane-leo library implements a SANE (Scanner  Access  Now
     Easy)  backend that provides access to some LEO SCSI flatbed
     scanners. This backend  should  be  considered  beta-quality
     software! LEO scanners were also sold under the Across Tech-
     nologies brand.

     The scanners that should work with this backend are:

             Vendor Model           status
          ----------------------  -----------
            Across FS-1130          tested
            Leo S3                  tested

     The options the backend  supports  can  either  be  selected
     through  command  line options to programs like scanimage or
     through GUI elements in xscanimage or xsane.

     If you have any strange behavior, please report to the back-
     end maintainer or to the SANE mailing list.

     Valid command line options and their syntax can be listed by
     using
          scanimage --help -d leo


     Scan Mode


     --mode
          selects the basic mode  of  operation  of  the  scanner
          valid  choices  are Black & White , Grayscale and Color
          The Black & White mode is black and white only (1 bit).
          Grayscale  will  produce  256  levels of gray (8 bits).
          Color will produce a 24 bits color image.


     --resolution
          selects the resolution for a scan. The scanner  can  do
          all resolutions between 1 and 300, in increments of 1.



     Geometry options


     -l -t -x -y
          control the scan area: -l sets the top left  x  coordi-
          nate,  -t  the  top  left  y coordinate, -x selects the



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SANE Scanner Access Now Easy                          sane-leo(5)



          width and -y the height of the scan area.  All  parame-
          ters are specified in millimeters by default.



     Enhancement options


     --custom-gamma
          (grayscale and color mode  only)  allows  the  user  to
          specify a gamma table (see the next 3 parameters).


     --red-gamma-table
          (color mode only)  can  be  used  to  download  a  user
          defined gamma table for the red channel. The table must
          be 256 bytes long.


     --green-gamma-table
          (color mode only)  can  be  used  to  download  a  user
          defined  gamma  table  for the green channel. The table
          must be 256 bytes long.


     --blue-gamma-table
          (color mode only)  can  be  used  to  download  a  user
          defined  gamma  table  for  the blue channel. The table
          must be 256 bytes long.


     --halftone
          (Black & White only) select the halftone mask  to  use.
          Possible  values are Diamond , 8x8 Coarse Fatting , 8x8
          Fine Fatting , 8x8 Bayer and 8x8 Vertical Line


     --preview
          requests a preview scan. The resolution used  for  that
          scan  is  28  dpi  and  the  scan  area  is the maximum
          allowed. The scan mode is user selected. The default is
          "no".



CONFIGURATION FILE
     The configuration file  /etc/sane.d/leo.conf  supports  only
     one information: the device name to use (eg /dev/scanner).







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SANE Scanner Access Now Easy                          sane-leo(5)



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

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



ENVIRONMENT
     SANEDEBUGLEO
          If the library was compiled with debug support enabled,
          this  environment variable controls the debug level for
          this backend. E.g., a value of 128 requests  all  debug
          output to be printed. Smaller levels reduce verbosity.



LIMITATIONS
     The windows TWAIN driver has many  more  options  than  this
     SANE  backend.  However  they are only software adjustments.
     This backend only implements what the scanner can support.



BUGS
     None known.



SEE ALSO
     sane-scsi(5), scanimage(1), xscanimage(1), xsane(1), sane(7)



AUTHOR
     The package is actively maintained by Frank Zago.
          http:/www.zago.net/sane/#leo

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:












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SANE Scanner Access Now Easy                          sane-leo(5)



     
       ATRIBUTE TYPE     ATRIBUTE VALUE 
    
     Availability         SUNWsane-backend
    
     Interface Stability  Uncommitted     
    

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













































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