NAME

       sane-hpsj5s - SANE backend for HP ScanJet 5S sheet-fed scanner

DESCRIPTION

       The  sane-hpsj5s  library  implements  a SANE (Scanner Access Now Easy) backend that provides access to a
       parallel port Hewlett-Packard ScanJet 5S scanner.

       IMPORTANT: this is alpha code. Don't expect this to work correctly. Many functions  are  missing,  others
       contain  errors. In some cases, your computer might even hang. It cannot be excluded (although I consider
       it extremely improbable) that your scanner will be damaged.

       LIMITATIONS: For now this backend works only on Linux.  This limitation  is  due  to  dependence  on  the
       libieee1284  library.  If  your  system supports libieee1284 too, this backend should work. If you ported
       libieee1284 for your platform, please let me know. Your system should support EPP (or EPP+ECP )  mode  to
       operate this scanner. Future versions will support ECP and SPP (Nibble and Byte) modes also. It's planned
       to support scanners not only at daisy-chain position 0, but anywhere. Support for multiple scanners could
       be implemented too.

       Current version implements only gray scale scanning. True Color and B/W modes are not supported for now.

       That said, TESTERS ARE WELCOME. Send your bug reports and comments to Max Vorobiev <pcwizard@yandex.ru>.

DEVICE NAMES

       This backend expects device names of the form:

              special

       Where  special  is  the parallel port name in form, libieee1284 expects. It seems to be system dependent.
       Under Linux it's parport0, parport1, etc.

CONFIGURATION

       The contents of the hpsj5s.conf file is a list  of  parport  names  that  correspond  to  HP  ScanJet  5S
       scanners.   Empty lines and lines starting with a hash mark (#) are ignored.  Only one device name can be
       listed in hpsj5s.conf for this moment. Future versions will support daisy chain selection.

TIPS

       It seems that HP ScanJet 5S scanner uses software noise correction. This feature is not  implemented  for
       now. So does gamma correction and calibration.  I'll handle it in future versions.  Native resolution for
       this scanner is 300 DPI. Other modes could be jagged in some ways.

FILES

       @CONFIGDIR@/hpsj5s.conf
              The backend configuration file (see also description of SANE_CONFIG_DIR below).

       @LIBDIR@/libsane-hpsj5s.a
              The static library implementing this backend.

       @LIBDIR@/libsane-hpsj5s.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 @CONFIGDIR@.   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 "@CONFIGDIR@"
              being searched (in this order).

       SEE ALSO
              sane(7)
              http://hpsj5s.sourceforge.net
              http://cyberelk.net/tim/libieee1284

AUTHOR

       Max Vorobiev
       Man page mostly based on canon.man

@PACKAGEVERSION@                                   13 Jul 2008                                    sane-hpsj5s(5)