sane-hp3900(5)           SANE Scanner Access Now Easy           sane-hp3900(5)

       sane-hp3900 - SANE backend for RTS8822 chipset based scanners

       The  sane-hp3900  library  implements  a SANE (Scanner Access Now Easy)
       backend that provides access at least  to  the  following  USB  flatbed

              Model:                     Chipset:
              ------                     --------
              HP ScanJet 3800            RTS8822BL-03A
              HP ScanJet 3970            RTS8822L-01H
              HP ScanJet 4070 Photosmart RTS8822L-01H
              HP ScanJet 4370            RTS8822L-02A
              HP ScanJet G2710           RTS8822BL-03A
              HP ScanJet G3010           RTS8822L-02A
              HP ScanJet G3110           RTS8822L-02A
              UMAX Astra 4900/4950       RTS8822L-01H *
              BenQ 5550                  RTS8823L-01E *

       More details can be found on the hp3900 backend homepage http://source-

       This is ALPHA software. Keep your hand at the scanner's plug and unplug
       it, if scanner does not start to scan. See also the BUGS section.

       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.

       The contents of the hp3900.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  39XX
       scanner.   Empty  lines and lines starting with a hash mark (#) are ig-
       nored.  The scanners  are  autodetected  by  usb  vendor_id  product_id
       statements  which  are  already included into hp3900.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,

              The  backend  configuration  file  (see  also   description   of
              SANE_CONFIG_DIR below).

              The static library implementing this backend.

              The shared library implementing this backend (present on systems
              that support dynamic loading).

              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 config-
              uration file is searched in two default directories: first,  the
              current working directory (".") and then in @CONFIGDIR@.  If the
              value of the environment variable ends with the directory  sepa-
              rator 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 or-

              If the library was compiled with debug support enabled, this en-
              vironment variable controls the debug level  for  this  backend.
              Higher debug levels increase the verbosity of the output.

              Example: export SANE_DEBUG_HP3900=4

       sane(7), sane-usb(5),  http://jkdsoftware.dyn-

       Jonathan Bravo Lopez <>

       Scanning is only tested with Linux/ix86/gcc. Be careful when testing on
       other  operating  systems  and  especially on big-endian platforms. The
       scanner may get wrong data.

@PACKAGEVERSION@                  06 Jan 2009                   sane-hp3900(5)
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