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

       (*)  WARNING: None of the advanced options of these scanners are avail-
       able (i.e. 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]
              selects the area to scan. It adjusts the -l -t -x -y options ac-
              cordingly. It does not need to be the real size of the paper.

       -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  mil-
              limeters. 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
              sets  the  tonal  gradation for the halftone mode. Pattern down-
              loading is not implemented by the backend.

       --autoseparation
              provides automatic separation of text and images.

       --white-level
              indicates the source of the white base.

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

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

       --gamma
              sets the gamma curve. It is only valid for Gray  modes,  and  is
              not  available  on all scanners. Gamma downloading is not imple-
              mented by the backend.

CONFIGURATION FILE

       The configuration file  /usr/local/etc/sane.d/matsushita.conf  supports
       the  device  name  to  use  (e.g.  /dev/scanner) and the SCSI option to
       auto-detect 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 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(1).

       A scanadf(1) 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

                                  11 Jul 2008               sane-matsushita(5)