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138 wiersze
5.0 KiB
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<TITLE>sane-canon_lide70.5</TITLE>
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<BODY BGCOLOR=#FFFFFF TEXT=#000000><H1 ALIGN=CENTER><IMG SRC="../images/sane.png" HEIGHT=117 WIDTH=346></H1>
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<H1>sane-canon_lide70.5</H1>
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<HR>
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<PRE>
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<!-- Manpage converted by man2html 3.0.1 -->
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<B><A HREF="sane-canon_lide70.5.html">sane-canon_lide70(5)</A></B> SANE Scanner Access Now Easy <B><A HREF="sane-canon_lide70.5.html">sane-canon_lide70(5)</A></B>
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</PRE>
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<H2>NAME</H2><PRE>
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sane-canon_lide70 - SANE backend for the Canon LiDE 70 USB flatbed
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scanner
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</PRE>
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<H2>DESCRIPTION</H2><PRE>
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The <B>canon_lide70</B> library implements a SANE (Scanner Access Now Easy)
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backend that provides access to the Canon Inc. CanoScan LiDE 70 flatbed
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scanner.
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Due to Canon's unwillingness to provide scanner documentation, this
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software was developed by analyzing the USB traffic of the Windows XP
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driver. The precise meaning of the individual commands that are sent to
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the scanner is known only to a very limited extent. Some sophistication
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present in the Windows XP driver has been left out. There is, for exam-
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ple, no active calibration.
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TESTERS ARE WELCOME. Send your bug reports and comments to the
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sane-devel mailing list <sane-devel@alioth-lists.debian.net>
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The <B>Canoscan</B> <B>LiDE</B> <B>600</B> (or 600f, with film unit) is closely related to
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the LiDE 70, but it does not work with this backend. Support for the
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LiDE 600 will be added by the end of 2020.
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</PRE>
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<H2>CONFIGURATION</H2><PRE>
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The <I>/usr/local/etc/sane.d/canon</I><B>_</B><I>lide70.conf</I> file identifies the LiDE 70
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by its vendor code 0x04a9 and its product code 0x2225. For the LiDE
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600(f) the product code would be 0x2224.
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</PRE>
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<H2>BACKEND SPECIFIC OPTIONS</H2><PRE>
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<B>Scan</B> <B>Mode:</B>
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--resolution 75|150|300|600|1200 [default 600]
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Sets the resolution of the scanned image in dots per inch.
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Scanning at 1200 dpi is very slow.
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--mode Color|Gray|Lineart [default: Color]
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Selects the scan mode. Lineart means fully black and fully
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white pixels only.
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--threshold 0..100 (in steps of 1) [default 75]
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Select minimum-brightness percentage to get a white point, rel-
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evant only for Lineart
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--non-blocking[=(yes|no)] [inactive]
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This option has not yet been implemented. Scans are captured in
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a temporary file with a typical size of 100MB.
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<B>Geometry:</B>
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-l 0..216.069 [default 0]
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Top-left x position of scan area in millimeters.
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-t 0..297 [default 0]
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Top-left y position of scan area in millimeters.
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-x 0..216.069 [default 80]
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Width of scan-area in millimeters.
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-y 0..297 [default 100]
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Height of scan-area in millimeters.
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</PRE>
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<H2>FILES</H2><PRE>
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<I>/usr/local/etc/sane.d/canon</I><B>_</B><I>lide70.conf</I>
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The backend configuration file
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<I>/usr/local/lib/sane/libsane-canon</I><B>_</B><I>lide70.a</I>
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The static library implementing this backend.
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<I>/usr/local/lib/sane/libsane-canon</I><B>_</B><I>lide70.so</I>
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The shared library implementing this backend (present on systems
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that support dynamic loading).
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</PRE>
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<H2>ENVIRONMENT</H2><PRE>
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<B>SANE_DEBUG_CANON_LIDE70</B>
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If the library was compiled with debug support enabled, this
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environment variable controls the debug level for this backend.
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Higher debug levels increase the verbosity of the output.
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Example:
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SANE_DEBUG_CANON_LIDE70=128 scanimage > /dev/null
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</PRE>
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<H2>KNOWN PROBLEMS</H2><PRE>
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At low resolutions (75 and 150 dpi, implying high slider speeds) the
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scanner misses the top one millimeter of the scan area. This can be
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remedied by shifting the document one millimeter downward, in cases
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where such precision matters. Note that xsane uses the 75 dpi mode for
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prescans.
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It is recommended that in xsane the gamma value be set to approximately
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1.5 to get more realistic colors. This also wipes out some artifacts
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caused by the lack of real calibration.
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</PRE>
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<H2>SEE ALSO</H2><PRE>
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<B><A HREF="sane.7.html">sane(7)</A></B>, <B><A HREF="sane-usb.5.html">sane-usb(5)</A></B>, <B><A HREF="sane-find-scanner.1.html">sane-find-scanner(1)</A></B>, <B><A HREF="scanimage.1.html">scanimage(1)</A></B>
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http://www.juergen-ernst.de/info_sane.html
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</PRE>
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<H2>AUTHOR</H2><PRE>
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pimvantend, building upon pioneering work by Juergen Ernst.
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26 Nov 2019 <B><A HREF="sane-canon_lide70.5.html">sane-canon_lide70(5)</A></B>
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</PRE>
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