Provided by: libsane-extras_1.0.18.12ubuntu1_i386 bug


       sane-hp_rts88xx  -  SANE  backend  for  scanners  based  on the RTS8891


       The sane-hp_rts88xx implements a SANE (Scanner Access Now Easy) backend
       that  provides  access  to RTS8891 chipset based scanners. This backend
       will try to support the following models:

       MANUFACTURER:    MODEL:         USB ID:
       ---------------  --------------  ---------
       Hewlett-Packard  Scanjet 4400c   03F0-0705
       Hewlett-Packard  Scanjet 4470c   03F0-0805
       Hewlett-Packard  Scanjet 3500C   03F0-2205
       Hewlett-Packard  Scanjet 3530c   03F0-2005
       Hewlett-Packard  Scanjet 3570c   03F0-2005


       This backend expects device names of the form:


       Where special is a path-name for the special device that corresponds to
       a  USB  scanner.   With  GNU/Linux systems, such a device name could be
       /dev/usb/scanner0 or /dev/usbscanner1, for example.


       The hp_rts88xx.conf file contains the device name  that  correspond  to
       the  hp44x0c  scanner.  Empty lines and lines starting with a hash mark
       (#) are ignored.

       A sample configuration file is shown below:

              # Comment
              /dev/usbscanner # option_CCD # CCD0 or CCD1  allowed  #  if  you
              receive a black image, change it to CCD1 option CCD0

       The  first  line  is ignored. The second line is the device filename to
       use in order to access the hp44x0c Scanner. If no device is given,  the
       backend will use libUSB.


              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
              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).

       SEE ALSO
              sane(7), sane-usb(5)


       Johannes Hub <johanneshub@t-online.det>

                                  22 Oct 2004               sane-hp_rts88xx(5)