sane-teco3 - SANE backend for TECO / RELISYS scanners


   The  sane-teco3  library  implements  a  SANE (Scanner Access Now Easy)
   backend that provides access to some TECO SCSI flatbed  scanners.  This
   backend  should be considered alpha-quality software! TECO scanners are
   sold under various brands like RELYSIS, PIOTECH,  TRUST.  This  backend
   may or may not support yours.

   The scanners that should work with this backend are:

            Vendor Model                 TECO model   status
            ---------------------------  ----------  ----------
            Relisys Scorpio                VM3552     tested
            Plustek OpticPro 2400SP        VM3552     untested
            PIOTECH Splendeur 3024         VM3552     tested
            Trust Imagery 2400 SP          VM3552     tested
            Trust Imagery 4800 SP+         VM3552     tested
            Trust Imagery 9600 SP          VM3552     untested

   The  TECO VM number can usually be found at the back of the scanner. It
   is also part of the FCC ID.

   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 success with a scanner not listed here, or if you  have
   any strange behavior, please report to the backend maintainer or to the
   SANE mailing list.

   Valid command line options and their syntax can be listed by using
          scanimage --help -d teco3

   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

          selects the resolution for  a  scan.  The  scanner  can  do  all
          resolutions between 1 and 1200, in increments of 1.

   Geometry options

   -l -t -x -y
          control the scan area: -l sets the top left x coordinate, -t the
          top left y coordinate, -x selects the width and -y the height of
          the  scan  area.  All parameters are specified in millimeters by

   Enhancement options

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

          (color  mode  only) can be used to download a user defined gamma
          table for the red channel. The table must be 1024 bytes long.

          (color mode only) can be used to download a user  defined  gamma
          table for the green channel. The table must be 1024 bytes long.

          (color  mode  only) can be used to download a user defined gamma
          table for the blue channel. The table must be 1024 bytes long.

          requests a preview scan. The resolution used for that scan is 22
          dpi  and  the scan area is the maximum allowed. The scan mode is
          user selected. The default is "no".


   The  configuration  file  /etc/sane.d/teco3.conf  supports   only   one
   information: the device name to use (eg /dev/scanner).


          The static library implementing this backend.

          The shared library implementing this backend (present on systems
          that support dynamic loading).


          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.


   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.


   Not much.


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


   The package is actively maintained by Frank Zago.

                              14 Jul 2008                    sane-teco3(5)


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