Ubuntu Manpage: sane-teco2 - SANE backend for TECO / RELISYS scanners

Provided by: libsane-common_1.3.1-4build1_all

NAME

       sane-teco2 - SANE backend for TECO / RELISYS scanners

DESCRIPTION

The sane-teco2 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 Mustek, Relisys, Piotech, Primax, TRUST. This backend may or may not
support yours.

The scanners that should work with this backend are:

Vendor Model TECO model status
--------------------------- -------------- -----------
Mustek ScanMagic 4830S VM3575 untested
Primax Jewel 4800 VM356A good
Primax Profi 9600 VM6575 basic
Primax Profi 19200 VM6586 good
Relisys APOLLO Express 3 VM356A basic
Relisys APOLLO Express 6 VM6565 good
Relisys APOLLO Express 12 ? untested
Relisys AVEC II S3 VM3564 good
Relisys AVEC Super 3 VM3575 basic
Relisys SCORPIO Pro VM6575 good
Relisys SCORPIO Pro-S VM6586 untested
Relisys SCORPIO Super 3 VM3575 good

For all these scanners, lineart and gray mode work well. However, most of them do not support more than a
handful of resolutions in color mode. See the backend home page (under AUTHOR) for the exact status of
each scanner.

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.

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), xsane(1), quiteinsane(1) or kooka(1).

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

OPTIONS

Valid command line options and their syntax can be listed by using:

scanimage --help -d teco2

Scan Mode

--mode Lineart|Gray|Color
selects the basic mode of operation of the scanner. The Lineart mode is black and white only (1
bit). Gray mode 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 resolutions between 1 and 600, in
increments of 1, for Lineart and Gray. For Color, a restricted set of resolutions are available.

Note: All values with vertical resolution in dpi > 300 (300 x 600) or 600 (600 x 1200) result in a
wrong proportion for the scan. The proportion can be adjusted with the following convert(1)
command from imagemagick:
convert -geometry (dpi/max_xdpi * 100%)x100%
max_xdpi is for the vm3575 constant with 300 dpi e.g. 600dpi adjust with: convert -geometry
200%x100%

--preview
requests a preview scan. The resolution used for that scan is 50 dpi (for VM356A and VM6575 75
dpi) and the scan area is the maximum allowed. The scan mode is user selected. The default is
"no".

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
default.

Enhancement options

--custom-gamma (no custom gamma option for the VM3564 and VM356A)
(color mode only) allows the user to specify a gamma table (see the next 3 parameters).

OPTIONS FOR COLOR MODE

       These options are valid for scan mode Color only.

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

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

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

OPTIONS ONLY FOR VM3564, VM356A, VM3575 and VM6575

       These options are only available for VM3564, VM356A, VM3575 and VM6575 models.

       --white-level-r 0..64
              Selects what red radiance level should  be  considered  "white",  when  scanning  some  sheets  by
              changing the calibration value loaded into the scanner. Scale 0..64 in steps of 1.

       --white-level-g 0..64
              Selects  what  green  radiance  level  should  be considered "white", when scanning some sheets by
              changing the calibration value loaded into the scanner. Scale 0..64 in steps of 1.

       --white-level-b 0..64
              Selects what blue radiance level should be  considered  "white",  when  scanning  some  sheets  by
              changing the calibration value loaded into the scanner. Scale 0..64 in steps of 1.

CONFIGURATION FILE

       The  configuration  file  /etc/sane.d/teco2.conf  supports  only  one  item:  the  device name to use (eg
       /dev/scanner).

FILES

       /usr/lib/x86_64-linux-gnu/sane/libsane-teco2.a
              The static library implementing this backend.

       /usr/lib/x86_64-linux-gnu/sane/libsane-teco2.so
              The shared library implementing this backend (present on systems that support dynamic loading).

ENVIRONMENT

       SANE_DEBUG_TECO2
              If the library was compiled with debug support enabled, this  environment  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.

       SANE_TECO2_CAL_ALGO
              Either 0 or 1. Selects the algorithm for the calibration. A value of 1 seems to give better  scans
              on  the VM356A, VM3575.  Feedback on it is welcome.  For VM3564, VM356A, VM3575, VM6575 default 1.
              For other supported types default 0.

LIMITATIONS

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

BUGS

       Plenty. Parts of this backend are still under development.

AUTHORS

       Frank Zago
              http://www.zago.net/sane/#teco2

       The package is actively maintained by Gerard Klaver.
              http://gkall.hobby.nl/teco2.html

CREDITS

       Thanks to:

       Gerard Klaver for his relentless VM3575 testings and contributed a patch to support the VM3564 and
       VM356A.

       Mark Plowman for providing the first SCSI traces from a VM3575.

       Andreas Klaedtke for providing the first SCSI traces from a VM6586 and for his testing, and to Stefan von
       Dombrowski for his testing.

       Nicolas Peyresaubes for providing the first SCSI traces from a VM656A and for his testing.

       Dave Parker for testing the support for the VM6575.

       Michael Hoeller for testing the support for the VM356A.

       Christoph Hoeffner for testing the support for the VM3564 (Relisys AVEC II S3 firmware 1.09).

                                                   14 Jul 2008                                     sane-teco2(5)