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RedHat 9 (Linux i386) - man page for sane-avision (redhat section 5)

sane-avision(5) 								  sane-avision(5)

NAME
       sane-avision  -	SANE  backend for original Avision and Avision OEM scanners (HP, Minolta,
       Mitsubishi, UMAX and possibly more) flatbed scanners

ABOUT THIS FILE
       This file only is a short descripton of the avision-backend for sane!

DESCRIPTION
       The sane-avision library implements a SANE (Scanner Access Now Easy) backend that provides
       access  to  Avision  flatbed  scanners  and  the Avision OEM scanners labelled with HP and
       Minolta.

CONFIGURATION
       The configuration file for this backend resides in      /etc/sane.d/avision.conf.

       Its contents is a list of device names that correspond to Avision and  Avision  compatible
       scanners.  Empty  lines and lines starting with a hash mark (#) are ignored. A sample con-
       figuration file is shown below:

       I suggest you hold one hand on the power-button of the scanner while  you  try  the  first
       scans!

	#scsi Vendor Model Type Bus Channel ID LUN
	scsi AVISION
	/dev/scanner

	# this is a comment
	#
	option force-a4
	option disable-gamma-table
	option disable-calibration
	option disable-calibration
	option one-calib-only

	- force-a4:
	  Forces the backend to overwrite the scanable area
	  returned by the scanner. This might be needed for
	  the AV 630 which returns no area - or newer scanners
	  which retun the area in a unkown format our backend
	  doesn't recongize yet.

	- disable-gamma-table:
	  Disables the usage of the scanner's gamma-table. You
	  might try this if your scans hang or only produces
	  random garbage.

	- disable-calibration:
	  Disables the scanner's color calibration. You
	  might try this if your scans hang or only produces
	  random garbage.

	- one-calib-only
	  When this option is enabled, the backend will only
	  perform a calibration when the backend is initialized
	  and not before each scan. This might extend the life
	  of the CCD, but does not work reliable with the newer
	  USB scanners (they hang sometimes or return garbage
	  image data). So this option should be used with care.

DEVICE NAMES
       This backend expects device names of the form:

	      special

       Where  special is the path-name for the special device that corresponds to a SCSI scanner.
       The special device name must be a generic SCSI device or a symlink to such a device.   The
       program sane-find-scanner helps to find out the correct device. Under Linux, such a device
       name could be /dev/sga or /dev/sge, for example.  See sane-scsi(5) for details.

FILES
       /etc/sane.d/avision.conf
	      The backend configuration file (see also description of SANE_CONFIG_DIR below).

       /usr/lib/sane/libsane-avision.a
	      The static library implementing this backend.

       /usr/lib/sane/libsane-avision.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_AVISION
	      If  the  library was compiled with debug support enabled, this environment variable
	      controls the debug level for this backend.  Higher debug levels increase	the  ver-
	      bosity of the output.

	      Example: export SANE_DEBUG_AVISION=4

SEE ALSO
       sane(7), sane-scsi(5)
       http://drocklinux.dyndns.org/rene/avision/index.html

AUTHOR
       Rene Rebe, Meino Christian Cramer and Jose Paulo Moitinho de Almeida

					   07 Julc 2002 			  sane-avision(5)


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