sane-sceptre(5) SANE Scanner Access Now Easy sane-sceptre(5)NAMEsane-sceptre - SANE backend for SCEPTRE scanners
DESCRIPTION
The sane-sceptre library implements a SANE (Scanner Access
Now Easy) backend that provides access to Sceptre flatbed
scanners. This backend should be considered beta-quality
software! Please report any strange behavior to the main-
tainer of the backend or to the SANE mailing list.
At present, only one scanner is known to work with this
backend:
Model Connection Type
----------------------------------------------
Sceptre VividScan S1200 SCSI
The make of this scanner is KINPO, so other scanners from
that manufacturer may also work (eg. the S600).
OPTIONS
The options the backend supports can either be selected
through command line options to programs like scanimage or
through GUI elements in xscanimage or xsane.
Valid command line options and their syntax can be listed
by using
scanimage --help -d sceptre
Scan Mode
--mode selects the basic mode of operation of the scanner
valid choices are Lineart, Halftone, Gray and
Color. The Lineart and Haltone mode are black and
white only (1 bit). Gray will produce 256 levels of
gray (8 bits). Color will produce a 24 bits color
image. The scanner suports 30 bits internally but
it only exports 24.
--resolution
selects the resolution for a scan. The scanner can
do several resolutions between 50 and 1200.
--halftone-pattern
selects the pattern mode that is used in Halftone
mode. Valid options are 1, 2, 3 and 4.
--gamma-correction
controls the scanner internal gamma correction.
Valid options are "Default", "User defined", "High
density printing" "Low density printing" and "High
contrast printing".
--custom-gamma
(color mode only) allows the user to specify a
gamma table (see the next 3 parameters).
--red-gamma-table
(color mode only) can be used to download a user
defined gamma table for the red channel. The table
must be 256 bytes long.
--green-gamma-table
(color mode only) can be used to download a user
defined gamma table for the green channel. The
table must be 256 bytes long.
--blue-gamma-table
(color mode only) can be used to download a user
defined gamma table for the blue channel. The table
must be 256 bytes long.
--threshold
sets the threshold for black and white pixels in
lineart mode. Possible values are from 0 (darker)
to 255 (lighter).
--preview
requests a preview scan. The resolution used for
that scan is 30 dpi and the scan area is the maxi-
mum allowed. The scan mode is user selected. The
default is "no".
The geometry options
-l -t -x -y
control the scan area: -l sets the top left x coor-
dinate, -t the top left y coordinate, -x selects
the width and -y the height of the scan area. All
parameters are specified in milimeters by default.
CONFIGURATION FILE
The configuration file /usr/freeware/etc/sane.d/scep-
tre.conf supports only one information: the device name to
use (eg /dev/scanner).
FILES
/usr/freeware/lib32/sane/libsane-sceptre.a
The static library implementing this backend.
/usr/freeware/lib32/sane/libsane-sceptre.so
The shared library implementing this backend (pre-
sent on systems that support dynamic loading).
ENVIRONMENT
SANE_DEBUG_SCEPTRE
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.
LIMITATIONS
Resolutions
The windows TWAIN driver can be set to any resolu-
tion between 50 to 1200 (excluding software inter-
polation). This backend cannot. Only a handful of
resolution are available, although they should be
numerous enough.
BUGS
None known.
SEE ALSOsane-scsi(5), scanimage(1), xscanimage(1), xsane(1),
sane(7)AUTHOR
The package is actively maintained by Frank Zago.
http://fz.eryx.net/sane/#sceptre
sane-backends 1.0.12 April 21st, 2002 sane-sceptre(5)
