1sane-sceptre(5)          SANE Scanner Access Now Easy          sane-sceptre(5)
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NAME

6       sane-sceptre - SANE backend for SCEPTRE scanners
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DESCRIPTION

9       The  sane-sceptre  library  implements a SANE (Scanner Access Now Easy)
10       backend that provides access to Sceptre flatbed scanners. This  backend
11       should  be  considered beta-quality software! Please report any strange
12       behavior to the maintainer of the backend or to the SANE mailing list.
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14       At present, only one scanner is known to work with this backend:
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16              Model                        Connection Type
17              ---------------------------  -------------------
18              Sceptre VividScan S1200      SCSI
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20       The make of this scanner is KINPO, so other scanners from that manufac‐
21       turer may also work (eg. the S600).
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OPTIONS

24       The options the backend supports can either be selected through command
25       line options to programs like scanimage(1) or through GUI  elements  in
26       xscanimage(1) or xsane(1).
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28       Valid command line options and their syntax can be listed by using
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30              scanimage --help -d sceptre
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33       Scan Mode
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36       --mode Lineart|Halftone|Gray|Color
37              Selects the basic mode of operation of the scanner.  The Lineart
38              and Halftone mode are black and white only (1 bit).   Gray  will
39              produce  256  levels  of gray (8 bits).  Color will produce a 24
40              bits color image. The scanner supports 30 bits internally but it
41              only exports 24.
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44       --resolution 50..1200
45              Selects  the  resolution  for a scan. The scanner can do several
46              resolutions between 50 and 1200.
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49       --halftone-pattern 1|2|3|4
50              Selects the pattern mode that is used in Halftone mode.
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53       --gamma-correction Default|User Defined|High Density Printing|Low  den‐
54       sity printing|High contrast printing
55              controls the scanner internal gamma correction.
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58       --custom-gamma
59              Allows the user to specify a gamma table (see the next 3 parame‐
60              ters).  Color mode only.
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63       --red-gamma-table
64              Can be used to download a user defined gamma table for  the  red
65              channel. The table must be 256 bytes long.  Color mode only.
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68       --green-gamma-table
69              Can be used to download a user defined gamma table for the green
70              channel. The table must be 256 bytes long.  Color mode only.
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73       --blue-gamma-table
74              Can be used to download a user defined gamma table for the  blue
75              channel. The table must be 256 bytes long.  Color mode only.
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78       --threshold 0..255
79              Sets  the  threshold for black and white pixels in Lineart mode.
80              Possible values are from 0 (darker) to 255 (lighter).
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83       --preview
84              Requests a preview scan. The resolution used for that scan is 30
85              dpi  and  the scan area is the maximum allowed. The scan mode is
86              user selected. The default is "no".
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89       The geometry options
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92       -l -t -x -y
93              control the scan area: -l sets the top left x coordinate, -t the
94              top left y coordinate, -x selects the width and -y the height of
95              the scan area. All parameters are specified  in  millimeters  by
96              default.
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CONFIGURATION FILE

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

107       /usr/lib64/sane/libsane-sceptre.a
108              The static library implementing this backend.
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110       /usr/lib64/sane/libsane-sceptre.so
111              The shared library implementing this backend (present on systems
112              that support dynamic loading).
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ENVIRONMENT

117       SANE_DEBUG_SCEPTRE
118              If  the  library  was  compiled with debug support enabled, this
119              environment variable controls the debug level for this  backend.
120              E.g.,  a  value  of 128 requests all debug output to be printed.
121              Smaller levels reduce verbosity.
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LIMITATIONS

126       Resolutions
127              The windows TWAIN driver can be set to any resolution between 50
128              to 1200 (excluding software interpolation). This backend cannot.
129              Only a handful of resolution are available, although they should
130              be numerous enough.
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BUGS

135       None known.
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SEE ALSO

140       sane-scsi(5), scanimage(1), xscanimage(1), xsane(1), sane(7)
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AUTHOR

145       The package is actively maintained by Frank Zago.
146              http://www.zago.net/sane/#sceptre
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150                                  11 Jul 2008                  sane-sceptre(5)
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