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254 wiersze
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<TITLE>sane-umax.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-umax.5</H1>
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<PRE>
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<!-- Manpage converted by man2html 3.0.1 -->
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<B><A HREF="sane-umax.5.html">sane-umax(5)</A></B> SANE Scanner Access Now Easy <B><A HREF="sane-umax.5.html">sane-umax(5)</A></B>
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</PRE>
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<H2>NAME</H2><PRE>
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sane-umax - SANE backend for UMAX scanners
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</PRE>
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<H2>ABOUT THIS FILE</H2><PRE>
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This file is only a brief description of the <B>sane-umax</B> backend for
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SANE! For detailed information take a look at sane-umax-doc.html (it is
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included in the sane source directory and in the <B><A HREF="xsane.1.html">xsane(1)</A></B> online help)!
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</PRE>
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<H2>DESCRIPTION</H2><PRE>
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The <B>sane-umax</B> library implements a SANE backend that provides access to
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several UMAX-SCSI-scanners and some Linotype Hell SCSI-scanners, paral-
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lel- and USB-scanners are not (and probably will never be) supported!
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<B>I</B> <B>suggest</B> <B>you</B> <B>hold</B> <B>one</B> <B>hand</B> <B>on</B> <B>the</B> <B>power-button</B> <B>of</B> <B>the</B> <B>scanner</B> <B>while</B>
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<B>you</B> <B>try</B> <B>the</B> <B>first</B> <B>scans!</B>
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</PRE>
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<H2>CONFIGURATION</H2><PRE>
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The configuration file for this backend resides in
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<I>/usr/local/etc/sane.d/umax.conf</I>.
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Its contents is a list of device names that correspond to UMAX and UMAX
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compatible scanners. Empty lines and lines starting with a hash mark
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(#) are ignored. A sample configuration file is shown below:
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# this is a comment
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#
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option scsi-maxqueue 4
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option scsi-buffer-size-min 65536
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option scsi-buffer-size-max 131072
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option scan-lines 40
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option preview-lines 10
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option scsi-maxqueue 2
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option execute-request-sense 0
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option force-preview-bit-rgb 0
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option slow-speed -1
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option care-about-smearing -1
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option calibration-full-ccd -1
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option calibration-width-offset -1
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option calibration-bytes-pixel -1
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option exposure-time-rgb-bind -1
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option invert-shading-data -1
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option lamp-control-available 0
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option gamma-lsb-padded 0
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/dev/sge
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#scsi Vendor Model Type Bus Channel ID LUN
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# The following scanner supports lamp control
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option lamp-control-available 1
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scsi UMAX * Scanner * * * * *
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# scanner on /dev/scanner does not support lamp control
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option lamp-control-available 0
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/dev/scanner
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execute-request-sense:
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values: 0 = disabled, 1 = enabled
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default = 0
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If set to 1, <B>umax_do_request_sense</B>() is called in <B>umax_do_cali-</B>
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<B>bration</B>(). This can hang the system, but has been enabled until
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this version.
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scsi-buffer-size-min, scsi-buffer-size-max:
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values: 4096-1048576
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default min = 32768, max = 131072
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Especially the minimum value is very important. If this value
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is set too small the backend is not able to send gamma tables to
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the scanner or to do a correct color calibration. This may
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result in strange color effects. If the minimum value is set too
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large then the backend is not able to allocate the requested
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SCSI buffer size and aborts with out of memory error. The
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default is 32KB, for some scanners it should be increased to
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64KB.
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scan-lines, preview-lines:
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values: 1-65535
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default: scan-lines = 40, preview-lines = 10
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define the maximum number of lines that are scanned into one
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buffer
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force-preview-bit-rgb:
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values: 0 = disabled, 1 = enabled
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default = 0
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set preview bit in rgb real scan
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slow-speed, care-about-smearing:
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values: -1 = auto, 0 = disabled, 1 = enabled
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default = -1
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Dangerous options, needed for some scanners.
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Do not change these options unless you really know what you are
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doing otherwise you may destroy your scanner with invalid val-
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ues.
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calibration-full-ccd:
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values: -1 = auto, 0 = disabled, 1 = enabled
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default = -1
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do calibration for each pixel of ccd instead of selected image
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calibration-width-offset:
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values: -99999 = auto, > -99999 set value
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add an offset to the calculated width for image/ccd
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calibration-bytes-pixel:
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values: -1 = disabled, 0 = not set, 1 = 1 byte/pixel, 2 = 2
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bytes/pixel
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use # bytes per pixel for calibration
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exposure-time-rgb-bind:
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values: -1 = automatically set by driver - if known, 0 = dis-
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abled (own selection for red, green and blue), 1 = enabled (same
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values for red, green and blue)
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invert-shading-data:
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values: -1 = automatically set by driver - if known, 0 = dis-
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abled, 1 = enabled
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default = -1
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invert shading data before sending it back to the scanner
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lamp-control-available:
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values: 0 = automatically set by driver - if known, 1 = avail-
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able
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default = 0
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gamma-lsb-padded:
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values: -1 = automatically set by driver - if known, 0 = gamma
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data is msb padded, 1 = gamma data is lsb padded
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default = -1
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handle-bad-sense-error:
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values: 0 = handle as device busy, 1 = handle as ok, 2 = handle
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as i/o error, 3 = ignore bad error code - continue sense handler
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default = 0
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scsi-maxqueue:
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values: 1..# (maximum defined at compile time)
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default = 2
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most SCSI drivers allow internal command queueing with a depth
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of 2 commands. In most cases it does not improve anything when
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you increase this value. When your SCSI driver does not support
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any command queueing you can try to set this value to 1.
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The special device name must be a generic SCSI device or a symlink to
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such a device. To find out to which device your scanner is assigned
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and how you have to set the permissions of that device, have a look at
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<B><A HREF="sane-scsi.5.html">sane-scsi(5)</A></B>.
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</PRE>
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<H2>SCSI ADAPTER TIPS</H2><PRE>
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The ISA-SCSI-adapters that are shipped with some UMAX-scanners are not
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supported very well by Linux (I suggest not to use it), the PCI-SCSI-
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adapters that come with some UMAX-scanners are not supported at all (as
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far as I know). On other platforms these SCSI-adapters are not sup-
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ported. So you typically need to purchase another SCSI-adapter that is
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supported by your platform. See the relevant hardware FAQs and HOWTOs
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for your platform for more information.
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The UMAX-scanners do block the SCSI-bus for a few seconds while scan-
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ning. It is not necessary to connect the scanner to its own SCSI-
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adapter. But if you need short response time for your SCSI-harddisk
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(e.g. if your computer is a file-server) or other SCSI devices, I sug-
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gest you use an own SCSI-adapter for your UMAX-scanner.
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If you have any problems with your UMAX scanner, check your SCSI chain
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(cable length, termination, ...).
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See also: <B><A HREF="sane-scsi.5.html">sane-scsi(5)</A></B>
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</PRE>
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<H2>FILES</H2><PRE>
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The backend configuration file:
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<I>/usr/local/etc/sane.d/umax.conf</I>
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The static library implementing this backend:
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<I>/usr/local/lib/sane/libsane-umax.a</I>
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The shared library implementing this backend:
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<I>/usr/local/lib/sane/libsane-umax.so</I> (present on systems that
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support dynamic loading)
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</PRE>
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<H2>ENVIRONMENT</H2><PRE>
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<B>SANE_DEBUG_UMAX</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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E.g., a value of 128 requests all debug output to be printed.
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Smaller levels reduce verbosity. <B>SANE_DEBUG_UMAX</B> values:
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Number Remark
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0 print important errors (printed each time)
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1 print errors
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2 print sense
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3 print warnings
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4 print scanner-inquiry
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5 print information
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6 print less important information
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7 print called procedures
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8 print reader_process messages
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10 print called sane-init-routines
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11 print called sane-procedures
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12 print sane infos
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13 print sane option-control messages
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Example:
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export SANE_DEBUG_UMAX=8
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</PRE>
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<H2>BUGS</H2><PRE>
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X-resolutions greater than 600 dpi sometimes cause problems.
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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-scsi.5.html">sane-scsi(5)</A></B>
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</PRE>
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<H2>AUTHOR</H2><PRE>
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Oliver Rauch
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</PRE>
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<H2>EMAIL-CONTACT</H2><PRE>
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<I>Oliver.Rauch@Rauch-Domain.DE</I>
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14 Jul 2008 <B><A HREF="sane-umax.5.html">sane-umax(5)</A></B>
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</PRE>
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<ADDRESS>
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<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a>
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