sane-hp4200(5)            (13 Jul 2008)            sane-hp4200(5)

     NAME
          sane-hp4200 - SANE backend for Hewlett-Packard 4200 scanners

     DESCRIPTION
          The sane-hp4200 library implements a SANE (Scanner Access
          Now Easy) backend that provides access to the following
          Hewlett-Packard USB flatbed scanners:

               ScanJet 4200 C
               ScanJet 4200 Cxi
               ScanJet 4200 Cse

          More details can be found on the hp4200 backend homepage
          http://hp4200-backend.sourceforge.net/.

          This is BETA software. Keep your hand at the scanner's plug
          and unplug it, if the head bumps at the end of the scan
          area.

          If you own a scanner other than the ones listed above that
          works with this backend, please let us know this by sending
          the scanner's exact model name and the USB vendor and device
          ids (e.g. from /proc/bus/usb/devices, sane-find-scanner(1)
          or syslog) to us. Even if the scanner's name is only
          slightly different from the models mentioned above, please
          let us know.

     CONFIGURATION
          The contents of the hp4200.conf file is a list of usb lines
          containing vendor and product ids that correspond to USB
          scanners. The file can also contain the names of device
          files that correspond to an HP 4200 scanner.  Empty lines
          and lines starting with a hash mark (#) are ignored.  The
          scanners are autodetected by usb vendor_id product_id state-
          ments which are already included into hp4200.conf.
          "vendor_id" and "product_id" are hexadecimal numbers that
          identify the scanner. If autodetection does not work, add
          the device name of your scanner to the configuration file,
          e.g.  /dev/usb/scanner0.

     FILES
          /etc/sane.d/hp4200.conf
               The backend configuration file (see also description of
               SANE_CONFIG_DIR below).

          /usr/lib/x86_64-linux-gnu/sane/libsane-hp4200.a
               The static library implementing this backend.

          /usr/lib/x86_64-linux-gnu/sane/libsane-hp4200.so
               The shared library implementing this backend (present

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     sane-hp4200(5)            (13 Jul 2008)            sane-hp4200(5)

               on systems that support dynamic loading).

     ENVIRONMENT
          SANE_CONFIG_DIR
               This environment variable specifies the list of direc-
               tories that may contain the configuration file.  Under
               UNIX, the directories are separated by a colon (`:'),
               under OS/2, they are separated by a semi-colon (`;').
               If this variable is not set, the configuration file is
               searched in two default directories: first, the current
               working directory (.)  and then in /etc/sane.d. If the
               value of the environment variable ends with the direc-
               tory separator character, then the default directories
               are searched after the explicitly specified directo-
               ries.  For example, setting SANE_CONFIG_DIR to
               "/tmp/config:" would result in directories tmp/config,
               ., and /etc/sane.d being searched (in this order).

          SANE_DEBUG_HP4200
               If the library was compiled with debug support enabled,
               this environment variable controls the debug level for
               this backend.  Higher debug levels increase the ver-
               bosity of the output.

               Example: export SANE_DEBUG_HP4200=4

     SEE ALSO
          sane(7), sane-usb(5), sane-find-scanner(1),
          http://hp4200-backend.sourceforge.net/

     AUTHOR
          Adrian Perez Jorge, Andrew John Lewis, Arnar Mar Hrafnkels-
          son, Frank Zago, Henning Meier-Geinitz. Current maintainer:
          Henning Meier-Geinitz <henning@meier-geinitz.de>.

     BUGS
          Tested only with Linux.

          Only 8 bit color mode works.

          Scanning is slow due to backtracking.

          Send bug reports to the sane-devel mailing list:
          sane-devel@alioth-lists.debian.net.

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