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
       scanners. 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
       available (ie no color, no high resolution, no automatic cropping).
       Basically, 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
       backend.

       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 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
              available 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 /etc/sane.d/matsushita.conf supports the device
       name to use (eg /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
              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 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
              (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://www.zago.net/sane/#matsushita



                                  11 Jul 2008               sane-matsushita(5)
