Provided by: libsane-common_1.1.1-5ubuntu1_all bug


       sane-teco1 - SANE backend for TECO / RELISYS scanners


       The  sane-teco1  library implements a SANE (Scanner Access Now Easy) backend that provides
       access to some TECO SCSI flatbed scanners. This backend should be considered  beta-quality
       software!  TECO  scanners are sold under various brands like RELISYS, 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 AVEC 2400        VM3520        tested
                Relisys AVEC 2412        VM3520+       tested
                Relisys AVEC 4800        VM4530        untested
                Relisys AVEC 4816        VM4530+       untested
                Relisys RELI 2400        VM3530        untested
                Relisys RELI 2412        VM3530+       tested
                Relisys RELI 2412        VM3530+       untested
                Relisys RELI 4816        VM4540        tested
                Relisys RELI 4830        VM4542        tested
                Relisys RELI 9600        VM6530        untested
                Relisys RELI 9612        VM6530*       untested
                Relisys RELI 9624        VM6530+       untested
                Relisys RELI 9630        VM6540        untested
                Relisys RELI DS15        VM3440        untested
                Relisys RELI DS6         VM3420        untested
                Dextra  DF-600P          VM3510        tested
                Dextra  DF-4830T         VM4542        untested
                Dextra  DF-1200T+        VM3530+       untested
                Dextra  DF-9624          VM6530+       untested

       Note that the untested scanner will not be directly  supported.  You  should  contact  the
       author for that.

       The TECO VM number can usually be found at the back of the scanner. It is also part of the
       FCC ID.  sane-find-scanner -v will also show the  SCSI  inquiry,  and  if  it  is  a  TECO
       scanner, the name will be there too.

       The  options  the  backend supports can either be selected through command line options to
       programs like scanimage(1) or through GUI elements in xscanimage(1) or xsane(1).

       If you have any success with a scanner not listed here,  or  if  you  notice  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 teco1

       Scan Mode

       --mode Black & White|Grayscale|Color
              Selects  the  basic  mode  of  operation  of the scanner. Valid choices are Black &
              White, Grayscale and Color.

              The Black & White mode is for black and white only (1 bit).  Grayscale will produce
              256 levels of gray (8 bits).  Color will produce a 24 bit color image.

       --resolution 1..600
              Selects the resolution for a scan. The scanner can do all resolutions between 1 and
              600, in increments of 1.

       Geometry options

       -l -t -x -y
              Controls 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 default.

       Enhancement options

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

              Can  be used to download a user defined gamma table for the red channel.  The table
              must be 256 bytes long. Color mode only.

              Can be used to download a user defined gamma table  for  the  green  channel.   The
              table must be 256 bytes long. Color mode only.

              Can be used to download a user defined gamma table for the blue channel.  The table
              must be 256 bytes long. Color mode only.

       --dither Line art|2x2|3x3|4x4 bayer|4x4  smooth|8x8  bayer|8x8  smooth|8x8  horizontal|8x8
              Select the dither mask to use. Black & White only.

              Requests  a  preview  scan.  The resolution used 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/teco1.conf supports only one item: 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.


       None known.


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


       The package is actively maintained by Frank Zago.


       Thanks  to  Gerard  Delafond  for  the  VM4542 support.  Thanks to Jean-Yves Simon for the
       VM3510 support.

                                           14 Jul 2008                              sane-teco1(5)