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

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 ydpi > 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)