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sane-hpsj5s(5)									   sane-hpsj5s(5)

       sane-hpsj5s - SANE backend for HP ScanJet 5S sheetfed scanner

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

       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 unprobable) that your scanner will be damaged.

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

       Current version implements only gray scale scaning. True Color and B/W modes are not  sup-
       ported for now.

       That said, TESTERS ARE WELCOME. Send your bug reports and comments to Max Vorobiev <pcwiz-

       This backend expects device names of the form:


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

       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.

       It seems that HP ScanJet 5S scaner 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 scaner is 300 DPI. Other modes could  be  jagged  in
       some ways.

	      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

       Max Vorobiev
       Man page mostly based on canon.man

					   24 Feb 2002				   sane-hpsj5s(5)
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