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sane-teco1(5)		 SANE Scanner Access Now Easy		 sane-teco1(5)

       sane-teco1 - SANE backend for TECO / RELISYS scanners

       The  sane-teco1	library	 implements  a	SANE (Scanner Access Now Easy)
       backend that provides access to some TECO SCSI flatbed  scanners.  This
       backend	should	be considered beta-quality software! TECO scanners are
       sold under various brands like RELISYS, 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	AVEC 2400	 VM3520	       tested
		Relisys	AVEC 2412	 VM3520+       tested
		Relisys	AVEC 4800	 VM4530	       untested
		Relisys	AVEC 4816	 VM4530+       untested
		Relisys	RELI 2400	 VM3530	       untested
		Relisys	RELI 2412	 VM3530+       tested
		Relisys	RELI 2412	 VM3530+       untested
		Relisys	RELI 4816	 VM4540	       tested
		Relisys	RELI 4830	 VM4542	       tested
		Relisys	RELI 9600	 VM6530	       untested
		Relisys	RELI 9612	 VM6530*       untested
		Relisys	RELI 9624	 VM6530+       untested
		Relisys	RELI 9630	 VM6540	       untested
		Relisys	RELI DS15	 VM3440	       untested
		Relisys	RELI DS6	 VM3420	       untested
		Dextra	DF-600P		 VM3510	       tested
		Dextra	DF-4830T	 VM4542	       untested
		Dextra	DF-1200T+	 VM3530+       untested
		Dextra	DF-9624		 VM6530+       untested

       Note  that  the	untested  scanner  will	not be directly	supported. You
       should contact the author for that.

       The TECO	VM number can usually be found at the back of the scanner.  It
       is  also	 part  of the FCC ID.  sane-find-scanner -v will also show the
       SCSI inquiry, and if it is a TECO scanner, the name will	be there too.

       The options the backend supports	can either be selected through command
       line  options  to programs like scanimage(1) or through GUI elements in
       xscanimage(1) or	xsane(1).

       If you have any success with a scanner not listed here, or if  you  no-
       tice  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 teco1

       Scan Mode

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

       --resolution 1..600
	      Selects  the resolution for a scan. The scanner can do all reso-
	      lutions between 1	and 600, in increments of 1.

       Geometry	options

       -l -t -x	-y
	      Controls 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  mil-
	      limeters by default.

       Enhancement options

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

	      Can be used to download a	user defined gamma table for  the  red
	      channel.	The table must be 256 bytes long. Color	mode only.

	      Can be used to download a	user defined gamma table for the green
	      channel.	The table must be 256 bytes long. Color	mode only.

	      Can be used to download a	user defined gamma table for the  blue
	      channel.	The table must be 256 bytes long. Color	mode only.

       --dither	Line art|2x2|3x3|4x4 bayer|4x4 smooth|8x8 bayer|8x8 smooth|8x8
       horizontal|8x8 vertical
	      Select the dither	mask to	use. Black & White only.

	      Requests a preview scan. The resolution used is 22 dpi  and  the
	      scan  area  is  the  maximum  allowed. The scan mode is user se-
	      lected. The default is "no".

       The configuration file /usr/local/etc/sane.d/teco1.conf	supports  only
       one item: 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.

       None known.

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

       The package is actively maintained by Frank Zago.

       Thanks  to Gerard Delafond for the VM4542 support.  Thanks to Jean-Yves
       Simon for the VM3510 support.

				  14 Jul 2008			 sane-teco1(5)


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