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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	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 teco1

       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 600, 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 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.

	      (Black  &	 White	only)  select the dither mask to use. Possible
	      values are Line art , 2x2	, 3x3 ,	4x4 bayer , 4x4	smooth	,  8x8
	      bayer , 8x8 smooth , 8x8 horizontal and 8x8 vertical

	      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/teco1.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.

       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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