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136 wiersze
5.4 KiB
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<HTML>
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<TITLE>sane-canon630u.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-canon630u.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-canon630u.5.html">sane-canon630u(5)</A></B> SANE Scanner Access Now Easy <B><A HREF="sane-canon630u.5.html">sane-canon630u(5)</A></B>
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</PRE>
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<H2>NAME</H2><PRE>
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sane-canon630u - SANE backend for the Canon 630u USB flatbed scanner
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</PRE>
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<H2>DESCRIPTION</H2><PRE>
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The <B>sane-canon</B> library implements a SANE (Scanner Access Now Easy)
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backend that provides access to the following Canon flatbed scanners:
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CanoScan 630u
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CanoScan 636u (hopefully)
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IMPORTANT: this is alpha code. Although there are no known bugs at
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this time, this code uses the Linux USB kernel drivers, which are cur-
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rently in active development. So it may not work, your computer might
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even hang, and it cannot be excluded (although I consider it extremely
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unprobable) that your scanner will be damaged.
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That said, TESTERS ARE WELCOME. Send your bug reports and comments to
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Nathan Rutman <nathan@gordian.com>
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</PRE>
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<H2>DEVICE NAMES</H2><PRE>
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This backend expects device names of the form:
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<I>special</I>
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Where <I>special</I> is the path-name for the special device that corresponds
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to a USB scanner or a symlink to such a device. The program <I>sane-find-</I>
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<I>scanner</I> helps to find out the correct device. Under Linux, such a
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device name could be <I>/dev/usb/scanner0</I> for example. See <B><A HREF="sane-usb.5.html">sane-usb(5)</A></B>
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for details.
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</PRE>
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<H2>CONFIGURATION</H2><PRE>
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The contents of the <I>canon630u.conf</I> file is a list of device names that
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correspond to Canon USB scanners. Empty lines and lines starting with
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a hash mark (#) are ignored. Only one device name can be listed in
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<I>canon630u.conf</I>.
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</PRE>
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<H2>NOTES</H2><PRE>
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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 2000
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driver. So things like the calibration procedure I kind of made up; it
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seems to work for my scanner. If you have complaints, let me know.
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This driver requires the ability to send USB Control Messages, avail-
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able in kernel 2.4.12 or later.
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This scanner may not be recognized (yet) by the USB kernel driver.
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Check for "Driver=usbscanner" under /proc/bus/usb/devices. If
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"Driver=(none)", try forcing it with "modprobe scanner vendor=0x04a9
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product=0x2204"
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</PRE>
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<H2>FILES</H2><PRE>
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<I>/usr/local/etc/sane.d/canon630u.conf</I>
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The backend configuration file (see also description of
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<B>SANE_CONFIG_DIR</B> below).
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<I>/usr/local/lib/sane/libsane-canon630u.a</I>
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The static library implementing this backend.
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<I>/usr/local/lib/sane/libsane-canon630u.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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<I>/tmp/canon.cal</I>
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The calibration file used to normalize pixel brightness. This
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is calculated every time the scanner is first used after it has
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lost power. It can be forced to recalibrate by simply deleting
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this file.
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</PRE>
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<H2>ENVIRONMENT</H2><PRE>
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<B>SANE_CONFIG_DIR</B>
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This environment variable specifies the list of directories that
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may contain the configuration file. Under UNIX, the directories
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are separated by a colon (`:'), under OS/2, they are separated
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by a semi-colon (`;'). If this variable is not set, the config-
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uration file is searched in two default directories: first, the
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current working directory (".") and then in
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/usr/local/etc/sane.d. If the value of the environment variable
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ends with the directory separator character, then the default
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directories are searched after the explicitly specified directo-
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ries. For example, setting <B>SANE_CONFIG_DIR</B> to "/tmp/config:"
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would result in directories "tmp/config", ".", and
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"/usr/local/etc/sane.d" being searched (in this order).
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<B>SANE_DEBUG_CANON630U</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: SANE_DEBUG_CANON630U=12 scanimage > /dev/null
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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>
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http://canon-fb630u.sourceforge.net/
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</PRE>
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<H2>AUTHOR</H2><PRE>
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Nathan Rutman
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sane-backends 1.0.12-cvs 06 Apr 2002 <B><A HREF="sane-canon630u.5.html">sane-canon630u(5)</A></B>
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</PRE>
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