sane-matsushita

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-SS25
                 KV-SS25D
                 KV-SS55EX (*)
                 KV-S2025C (*)
                 KV-S2045C (*)
                 KV-S2065L (*)

       (*)  WARNING: None of the advanced options of these scanners are avail-
       able (ie no color, no high resolution, no  automatic  cropping).  Basi-
       cally,  the  driver  does  no more than what it does for the KV-SS25. I
       don't have access to such scanners, and thus cannot add these options.

       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 op-
              tions 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  area. All parameters are specified in millimeters. 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 @CONFIGDIR@/matsushita.conf supports the device
       name to use (eg /dev/scanner) and the SCSI option  to  auto-detect  the
       scanners supported.

FILES
       @LIBDIR@/libsane-matsushita.a
              The static library implementing this backend.

       @LIBDIR@/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 en-
              vironment  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 resolution. 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 enhancement 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 (half-
              tone 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 --du-
       plex --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://www.zago.net/sane/#matsushita

@PACKAGEVERSION@                  11 Jul 2008               sane-matsushita(5)