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sane-teco3(5)		 SANE Scanner Access Now Easy		 sane-teco3(5)

       sane-teco3 - SANE backend for TECO / RELISYS scanners

       The  sane-teco3	library	 implements  a	SANE (Scanner Access Now Easy)
       backend that provides access to some TECO SCSI flatbed  scanners.  This
       backend	should be considered alpha-quality software! TECO scanners are
       sold under various brands like RELYSIS, PIOTECH,	 TRUST.	 This  backend
       may or may not support yours.

       The scanners that should	work with this backend are:

		Vendor Model		     TECO model	  status
		---------------------------  ----------	 ----------
		Relisys	Scorpio		       VM3552	  tested
		Plustek	OpticPro 2400SP	       VM3552	  untested
		PIOTECH	Splendeur 3024	       VM3552	  tested
		Trust Imagery 2400 SP	       VM3552	  tested
		Trust Imagery 4800 SP+	       VM3552	  tested
		Trust Imagery 9600 SP	       VM3552	  untested

       The  TECO VM number can usually be found	at the back of the scanner. It
       is also part of the FCC ID.

       The options the backend supports	can either be selected through command
       line  options to	programs like scanimage	or through GUI elements	in xs-
       canimage	or xsane.

       If you have any success with a scanner not listed here, or if you  have
       any strange behavior, please report to the backend maintainer or	to the
       SANE mailing list.

       Valid command line options and their syntax can be listed by using
	      scanimage	--help -d teco3

       Scan Mode

       --mode selects the basic	mode of	operation of the scanner valid choices
	      are  Black  _ White , Grayscale and Color	The Black & White mode
	      is black and white only (1 bit). Grayscale will produce 256 lev-
	      els of gray (8 bits). Color will produce a 24 bits color image.

	      selects  the resolution for a scan. The scanner can do all reso-
	      lutions between 1	and 1200, in increments	of 1.

       Geometry	options

       -l -t -x	-y
	      control the scan area: -l	sets the top left x coordinate,	-t the
	      top left y coordinate, -x	selects	the width and -y the height of
	      the scan area. All parameters are	specified  in  millimeters  by

       Enhancement options

	      (color  mode only) allows	the user to specify a gamma table (see
	      the next 3 parameters).

	      (color mode only)	can be used to download	a user	defined	 gamma
	      table for	the red	channel. The table must	be 1024	bytes long.

	      (color  mode  only) can be used to download a user defined gamma
	      table for	the green channel. The table must be 1024 bytes	long.

	      (color mode only)	can be used to download	a user	defined	 gamma
	      table for	the blue channel. The table must be 1024 bytes long.

	      requests a preview scan. The resolution used for that scan is 22
	      dpi and the scan area is the maximum allowed. The	scan  mode  is
	      user selected. The default is "no".

       The  configuration  file	/usr/local/etc/sane.d/teco3.conf supports only
       one information:	the device name	to use (eg /dev/scanner).

	      The static library implementing this backend.

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

	      If the library was compiled with debug support enabled, this en-
	      vironment	variable controls the debug level  for	this  backend.
	      E.g.,  a	value  of 128 requests all debug output	to be printed.
	      Smaller levels reduce verbosity.

       The windows TWAIN driver	has many more options than this	SANE  backend.
       However	they  are  only	software adjustments. This backend only	imple-
       ments what the scanner can support.

       Not much.

       sane-scsi(5), scanimage(1), xscanimage(1), xsane(1), sane(7)

       The package is actively maintained by Frank Zago.

				  14 Jul 2008			 sane-teco3(5)


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