1sane-leo(5) SANE Scanner Access Now Easy sane-leo(5)
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6 sane-leo - SANE backend for LEO Technologies scanners
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9 The sane-leo library implements a SANE (Scanner Access Now Easy) back‐
10 end that provides access to some LEO SCSI flatbed scanners. This back‐
11 end should be considered beta-quality software! LEO scanners were also
12 sold under the Across Technologies brand.
13 The scanners that should work with this backend are:
15 Vendor Model status
17 ---------------------- -----------
18 Across FS-1130 tested
19 Leo S3 tested
20 The options the backend supports can either be selected through command
22 line options to programs like scanimage or through GUI elements in
23 xscanimage or xsane.
24 If you have any strange behavior, please report to the backend main‐
26 tainer or to the SANE mailing list.
27 Valid command line options and their syntax can be listed by using
29 scanimage --help -d leo
30 Scan Mode
33 --mode selects the basic mode of operation of the scanner valid choices
36 are Black & White , Grayscale and Color The Black & White mode
37 is black and white only (1 bit). Grayscale will produce 256 lev‐
38 els of gray (8 bits). Color will produce a 24 bits color image.
39 --resolution
42 selects the resolution for a scan. The scanner can do all reso‐
43 lutions between 1 and 300, in increments of 1.
44 Geometry options
48 -l -t -x -y
51 control the scan area: -l sets the top left x coordinate, -t the
52 top left y coordinate, -x selects the width and -y the height of
53 the scan area. All parameters are specified in millimeters by
54 default.
55 Enhancement options
59 --custom-gamma
62 (grayscale and color mode only) allows the user to specify a
63 gamma table (see the next 3 parameters).
64 --red-gamma-table
67 (color mode only) can be used to download a user defined gamma
68 table for the red channel. The table must be 256 bytes long.
69 --green-gamma-table
72 (color mode only) can be used to download a user defined gamma
73 table for the green channel. The table must be 256 bytes long.
74 --blue-gamma-table
77 (color mode only) can be used to download a user defined gamma
78 table for the blue channel. The table must be 256 bytes long.
79 --halftone
82 (Black & White only) select the halftone mask to use. Possible
83 values are Diamond , 8x8 Coarse Fatting , 8x8 Fine Fatting , 8x8
84 Bayer and 8x8 Vertical Line
85 --preview
88 requests a preview scan. The resolution used for that scan is 28
89 dpi and the scan area is the maximum allowed. The scan mode is
90 user selected. The default is "no".
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95 The configuration file /etc/sane.d/leo.conf supports only one informa‐
96 tion: the device name to use (eg /dev/scanner).
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101 /usr/lib64/sane/libsane-leo.a
102 The static library implementing this backend.
103 /usr/lib64/sane/libsane-leo.so
105 The shared library implementing this backend (present on systems
106 that support dynamic loading).
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111 SANE_DEBUG_LEO
112 If the library was compiled with debug support enabled, this
113 environment variable controls the debug level for this backend.
114 E.g., a value of 128 requests all debug output to be printed.
115 Smaller levels reduce verbosity.
116
120 The windows TWAIN driver has many more options than this SANE backend.
121 However they are only software adjustments. This backend only imple‐
122 ments what the scanner can support.
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127 None known.
128
132 sane-scsi(5), scanimage(1), xscanimage(1), xsane(1), sane(7)
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137 The package is actively maintained by Frank Zago.
138 http://www.zago.net/sane/#leo
139 11 Jul 2008 sane-leo(5)