SANE Scanner Access Now Easy                      sane-sceptre(5)



NAME
     sane-sceptre - SANE backend for SCEPTRE scanners

DESCRIPTION
     The sane-sceptre library implements a SANE  (Scanner  Access
     Now  Easy)  backend  that provides access to Sceptre flatbed
     scanners. This backend  should  be  considered  beta-quality
     software!  Please  report  any strange behavior to the main-
     tainer of the backend or to the SANE mailing list.

     At present, only one scanner is  known  to  work  with  this
     backend:

          Model                        Connection Type
          ---------------------------  -------------------
          Sceptre VividScan S1200      SCSI

     The make of this scanner is KINPO, so  other  scanners  from
     that manufacturer may also work (eg. the S600).

OPTIONS
     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.

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


     Scan Mode


     --mode
          selects the basic mode  of  operation  of  the  scanner
          valid  choices  are  Lineart, Halftone, Gray and Color.
          The Lineart and Halftone mode are black and white  only
          (1 bit). Gray will produce 256 levels of gray (8 bits).
          Color will produce a 24 bits color image.  The  scanner
          supports 30 bits internally but it only exports 24.


     --resolution
          selects the resolution for a scan. The scanner  can  do
          several resolutions between 50 and 1200.


     --halftone-pattern
          selects the pattern mode that is used in Halftone mode.
          Valid options are 1, 2, 3 and 4.





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SANE Scanner Access Now Easy                      sane-sceptre(5)



     --gamma-correction
          controls the scanner internal gamma  correction.  Valid
          options  are  "Default",  "User defined", "High density
          printing" "Low density  printing"  and  "High  contrast
          printing".


     --custom-gamma
          (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.


     --threshold
          sets the  threshold  for  black  and  white  pixels  in
          lineart  mode.  Possible  values are from 0 (darker) to
          255 (lighter).


     --preview
          requests a preview scan. The resolution used  for  that
          scan  is  30  dpi  and  the  scan  area  is the maximum
          allowed. The scan mode is user selected. The default is
          "no".


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




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SANE Scanner Access Now Easy                      sane-sceptre(5)



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



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

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



ENVIRONMENT
     SANEDEBUGSCEPTRE
          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
     Resolutions
          The windows TWAIN driver can be set to  any  resolution
          between  50 to 1200 (excluding software interpolation).
          This backend cannot. Only a handful of  resolution  are
          available, although they should be numerous enough.



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/#sceptre

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



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SANE Scanner Access Now Easy                      sane-sceptre(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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