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.TH sane\-teco2 5 "14 Jul 2008" "@PACKAGEVERSION@" "SANE Scanner Access Now Easy"
.IX sane\-teco2
.SH NAME
sane\-teco2 \- SANE backend for TECO / RELISYS scanners
.SH DESCRIPTION
The
.B 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
.B beta-quality
software! TECO scanners are sold under
various brands like Mustek, Relisys, Piotech, Primax, TRUST.
This backend may or may not support yours.
.PP
The scanners that should work with this backend are:
.PP
.RS
.ft CR
.nf
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
.fi
.ft R
.RE
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
.BR scanimage (1)
or through GUI
elements in
.BR xscanimage (1),
.BR xsane (1),
.BR quiteinsane (1)
or
.BR kooka (1).
.br
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.
.SH OPTIONS
Valid command line options and their syntax can be listed by using:
.RS
scanimage \-\-help \-d teco2
.RE
.TP
.B Scan Mode
.TP
.B \-\-mode Lineart|Gray|Color
selects the basic mode of operation of the scanner.
The
.I Lineart
mode is black and white only (1 bit).
.I Gray
mode will produce 256 levels of gray (8 bits).
.I Color
will produce a 24 bits color image.
.TP
.B \-\-resolution 1..600
Selects the resolution for a scan. The scanner can do all resolutions
between 1 and 600, in increments of 1, for
.IR Lineart " and " Gray .
For
.IR Color ,
a restricted set of resolutions are available.
.B 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
.BR convert (1)
command from imagemagick:
.br
.I convert \-geometry (dpi/max_xdpi * 100%)x100%
.br
max_xdpi is for the vm3575 constant with 300 dpi
e.g. 600dpi adjust with: convert \-geometry 200%x100%
.TP
.B \-\-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".
.TP
.B Geometry options
.TP
.B \-l, \-t, \-x, " \-y
Control the scan area:
.B \-l
sets the top left x coordinate,
.B \-t
the top left y coordinate,
.B \-x
selects the width and
.B \-y
the height of the scan area. All parameters are specified in millimeters by default.
.TP
.B Enhancement options
.TP
.B \-\-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).
.SH OPTIONS FOR COLOR MODE
These options are valid for scan mode
.I Color
only.
.TP
.B \-\-red\-gamma\-table
Can be used to download a user defined
gamma table for the red channel. The table must be 256 bytes long.
.TP
.B \-\-green\-gamma\-table
Can be used to download a user defined
gamma table for the green channel. The table must be 256 bytes long.
.TP
.B \-\-blue\-gamma\-table
Can be used to download a user defined gamma table
for the blue channel. The table must be 256 bytes long.
.SH OPTIONS ONLY FOR VM3564, VM356A, VM3575 and VM6575
These options are only available for VM3564, VM356A, VM3575 and VM6575 models.
.TP
.B \-\-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.
.TP
.B \-\-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.
.TP
.B \-\-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.
.SH CONFIGURATION FILE
The configuration file
.I @CONFIGDIR@/teco2.conf
supports only one item: the device name to use (eg
.IR /dev/scanner ).
.SH FILES
.TP
.I @LIBDIR@/libsane\-teco2.a
The static library implementing this backend.
.TP
.I @LIBDIR@/libsane\-teco2.so
The shared library implementing this backend (present on systems that
support dynamic loading).
.SH ENVIRONMENT
.TP
.B 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.
.TP
.B 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.
.SH 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.
.SH BUGS
Plenty. Parts of this backend are still under development.
.SH "SEE ALSO"
.BR sane (7),
.BR sane\-scsi (5),
.BR scanimage (1),
.BR xscanimage (1),
.BR xsane (1)
.SH AUTHORS
.TP
Frank Zago
.I http://www.zago.net/sane/#teco2
.TP
The package is actively maintained by Gerard Klaver.
.I http://gkall.hobby.nl/teco2.html
.SH CREDITS
Thanks to:
.TP
Gerard Klaver for his relentless VM3575 testings and contributed a patch to support the VM3564 and VM356A.
.TP
Mark Plowman for providing the first SCSI traces from a VM3575.
.TP
Andreas Klaedtke for providing the first SCSI traces from a VM6586 and for his testing, and to Stefan von Dombrowski for his testing.
.TP
Nicolas Peyresaubes for providing the first SCSI traces from a VM656A and for his testing.
.TP
Dave Parker for testing the support for the VM6575.
.TP
Michael Hoeller for testing the support for the VM356A.
.TP
Christoph Hoeffner for testing the support for the VM3564 (Relisys AVEC II S3 firmware 1.09).
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