sane-matsushita.5

sane-matsushita(5)       SANE Scanner Access Now Easy       sane-matsushita(5)

NAME

       sane-matsushita - SANE backend for Panasonic KV-SS high speed scanners

DESCRIPTION

       The sane-matsushita library implements a SANE (Scanner Access Now Easy)
       backend that provides access to some Panasonic KV-SS high  speed  scan-
       ners. This backend is stable.

       At present, the following scanners are known to work with this backend:

                Product id
              --------------
                 KV-SS 25
                 KV-SS 25D

       Other Panasonic high speed scanners may or may not work with that back-
       end.

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

       Scan Mode

       --mode selects the basic mode of operation of the scanner.

       --resolution
              selects  the resolution for a scan. Each model supports all or a
              subset of these resolutions: 100, 150, 200, 240, 300, 360,  400.

       --duplex
              indicates whether to scan both side of the sheet.

       --feeder-mode
              selects  the  number  of pages to scan (one or until the tray is
              empty).

       Geometry

       --paper-size A4|...|Legal|Letter [A4]
              options selects the area to scan. It adjust  the  -l  -t  -x  -y
              options accordingly. It does not need to be the real size of the
              paper.

       -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 aea. All parameters are specified in milimeters. It  is
              possible to use the option --paper-size instead.

       Enhancement

       --brightness
              controls  the brightness of the acquired image. The value varies
              from 1 to 255, or less, depending on the scanner model.

       --contrast
              controls the contrast of the acquired image. Some models do  not
              support that option.

       --automatic-threshold
              automatically  sets  brightness,  contrast,  white level, gamma,
              noise reduction and image emphasis. These options are not avail-
              able when automatic-threshold is in use.

       --halftone-pattern
              option  sets  the tonal gradation for the halftone mode. Pattern
              downloading is not implemented by the backend.

       --autoseparation
              provides automatic separation of text and images.

       --white-level
              option indicate the source of the white base.

       --noise-reduction
              reduces the isolated dot noise. This option is not supported  by
              all scanners.

       --image-emphasis
              option sets the image emphasis. Some selection are not available
              on all scanners.

       --gamma
              options set the gamma curve. It is only valid  for  Gray  modes,
              and  is  not available on all scanners. Gamma downloading is not
              implemented by the backend.

CONFIGURATION FILE

       The configuration file  /usr/local/etc/sane.d/matsushita.conf  supports
       the device name to use (eg /dev/scanner) and the scsi option to autode-
       tect the scanners supported.

FILES

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

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

ENVIRONMENT

       SANE_DEBUG_MATSUSHITA
              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

       Memory in the KV-SS 25
              The KV-SS 25 has not enough internal memory to scan a  whole  A4
              page  in duplex mode at high densities. The frontend will return
              a memory error in that case. Apparently, the KV-SS 25D  has  not
              that problem.

       Pattern and gamma downloading
              The  scanner,  with the proper firmware, can download a halftone
              pattern and a gamma table. This is not implemented.

       Sub-areas
              The scanner can support up to 3 sub-areas on each side to define
              some more precise enhancment options. This is not implemented.

       Duplex mode
              The  backend  does  not support the setting of different options
              for each side.  The  scan  will  occur  with  the  same  options
              (halftone pattern, brightness, image emphasis) for both sides.

SCANNING EXAMPLE

       To  date, the only frontend capable of using this scanner at full speed
       is scanadf.

       A scanadf command line would be:

       scanadf  -d  matsushita  --output-file  scan%04d.pbm  --start-count   0
       --duplex --resolution 300 --feeder-mode="All pages" --paper-size="A4"

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://fz.eryx.net/sane/#matsushita

sane-backends 1.0.12-cvs        April 21s, 2002             sane-matsushita(5)