sane-hp4200(5)           SANE Scanner Access Now Easy           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 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
       statements 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/local/lib/sane/libsane-hp4200.a
              The static library implementing this backend.

       /usr/local/lib/sane/libsane-hp4200.so
              The shared library implementing this backend (present on systems
              that support dynamic loading).

ENVIRONMENT
       SANE_CONFIG_DIR
              This environment variable specifies the list of directories 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 directory separator character, then the default directories
              are searched after the explicitly specified directories.  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 verbosity of the output.

              Example: export SANE_DEBUG_HP4200=4


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


AUTHOR
       Adrian Perez Jorge, Andrew John Lewis, Arnar Mar Hrafnkelsson, 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@lists.alioth.debian.org.



                                  13 Jul 2008                   sane-hp4200(5)
