kopia lustrzana https://gitlab.com/sane-project/website
161 wiersze
6.1 KiB
HTML
161 wiersze
6.1 KiB
HTML
<HTML>
|
||
<HEAD>
|
||
<TITLE>sane-rts8891.5</TITLE>
|
||
</HEAD>
|
||
<BODY BGCOLOR=#FFFFFF TEXT=#000000><H1 ALIGN=CENTER><IMG SRC="/images/sane.png" HEIGHT=117 WIDTH=346></H1>
|
||
<H1>sane-rts8891.5</H1>
|
||
<HR>
|
||
<PRE>
|
||
<!-- Manpage converted by man2html 3.0.1 -->
|
||
<B><A HREF="sane-rts8891.5.html">sane-rts8891(5)</A></B> SANE Scanner Access Now Easy <B><A HREF="sane-rts8891.5.html">sane-rts8891(5)</A></B>
|
||
|
||
|
||
</PRE>
|
||
<H2>NAME</H2><PRE>
|
||
sane-rts8891 - SANE backend for rts8891 based scanners
|
||
|
||
|
||
</PRE>
|
||
<H2>DESCRIPTION</H2><PRE>
|
||
The <B>sane-rts8891</B> library implements a SANE (Scanner Access Now Easy)
|
||
backend that provides access to scanners based on the rts8891 ASIC.
|
||
|
||
The scanners that work with this backend are:
|
||
|
||
Vendor Model status
|
||
---------------------- -----------
|
||
Umax Astra 4400 untested
|
||
Umax Astra 4450 untested
|
||
HP scanjet 4000c good
|
||
HP scanjet 4470c good
|
||
|
||
The options the backend supports can either be selected through command
|
||
line options to programs like scanimage or through GUI elements in
|
||
xscanimage or xsane.
|
||
|
||
If you have any strange behavior, please report to the backend main‐
|
||
tainer or to the SANE mailing list.
|
||
|
||
Valid command line options and their syntax can be listed by using
|
||
scanimage --help -d rts8891
|
||
|
||
<B>Scan</B> <B>Mode</B> <B>Options</B>
|
||
|
||
<B>--mode</B> selects the basic mode of operation of the scanner valid choices
|
||
are <I>R</I> <I>Color</I> <I>,</I> <I>Gray</I> and <I>Lineart</I> The default mode is Color. The
|
||
Lineart mode is black and white only (1 bit). Grayscale will
|
||
produce 256 levels of gray (8 bits). Color mode allows for over
|
||
16 million different colors produced from 24 bits of color
|
||
information.
|
||
|
||
<B>--resolution</B>
|
||
selects the resolution for a scan. The horizontal and vertical
|
||
resolutions are set by the value of this option. The scanner is
|
||
capable of the following resolutions for the specified option
|
||
value:
|
||
|
||
Value Hor. Resolution Vert. Resolution
|
||
----- --------------- -------------------
|
||
75 75dpi 75dpi
|
||
150 150dpi 150dpi
|
||
300 300dpi 300dpi
|
||
600 600dpi 600dpi
|
||
1200 1200dpi 1200dpi
|
||
|
||
<B>--preview</B>
|
||
requests a preview scan. The resolution used for that scan is 75
|
||
dpi and the scan area and the scan mode are as specified through
|
||
their options, or the default if not specified. The default
|
||
value for preview mode is "no".
|
||
|
||
<B>--threshold</B>
|
||
selects the minimum-brightness to get a white point. The
|
||
threshold is only used with Lineart mode scans. It is specified
|
||
as a percentage in the range 0..100% (in steps of 1). The
|
||
default value of the threshold option is 50.
|
||
|
||
|
||
</PRE>
|
||
<H2>CONFIGURATION FILE</H2><PRE>
|
||
The configuration file <B>/usr/local/etc/sane.d/rts8891.conf</B> contains the
|
||
usb device ids of supported scanners (eg usb 0x043d 0x007c) and scanner
|
||
configuration options. Empty lines and lines starting with a hash mark
|
||
(#) are ignored.
|
||
|
||
The options supported are <B>allowsharing</B> , <B>modelnumber</B>
|
||
|
||
Option
|
||
|
||
<B>allowsharing</B> enables or not the sharing of the scanner between multiple
|
||
frontends at the same time.
|
||
|
||
<B>modelnumber</B> is used to force the reported model by the backend and is
|
||
only useful in the case of a scanner which NVRAM has been erased.
|
||
0 to report a HP4470c.
|
||
1 to report a HP4400c.
|
||
2 to report an Astra 4400.
|
||
|
||
|
||
</PRE>
|
||
<H2>FILES</H2><PRE>
|
||
<I>/usr/local/lib/sane/libsane-rts8891.a</I>
|
||
The static library implementing this backend.
|
||
|
||
<I>/usr/local/lib/sane/libsane-rts8891.so</I>
|
||
The shared library implementing this backend (present on systems
|
||
that support dynamic loading).
|
||
|
||
|
||
</PRE>
|
||
<H2>ENVIRONMENT</H2><PRE>
|
||
<B>SANE_DEBUG_RTS8891</B> <B>SANE_DEBUG_RTS8891_LOW</B> <B>SANE_DEBUG_RTS88XX_LIB</B>
|
||
If the library was compiled with debug support enabled, these
|
||
environment variables controls the debug level for this backend.
|
||
E.g., a value of 255 requests all debug output to be printed.
|
||
Smaller levels reduce verbosity.
|
||
|
||
|
||
</PRE>
|
||
<H2>LIMITATIONS</H2><PRE>
|
||
Scanners of the same model exist with different sensors, due to lack of
|
||
data (ie USB logs) some sensors are better supported than others. At
|
||
least 75 dpi mode is working for any model. Sharing the scanner between
|
||
several frontends at the same time (allowsharing option) may not work
|
||
on some USB controllers.
|
||
|
||
XPA is no (yet) supported.
|
||
|
||
|
||
</PRE>
|
||
<H2>BUGS</H2><PRE>
|
||
No bugs currently known.
|
||
|
||
|
||
</PRE>
|
||
<H2>SEE ALSO</H2><PRE>
|
||
<B><A HREF="sane-scsi.5.html">sane-scsi(5)</A></B>, <B><A HREF="scanimage.1.html">scanimage(1)</A></B>, <B><A HREF="xscanimage.1.html">xscanimage(1)</A></B>, <B><A HREF="xsane.1.html">xsane(1)</A></B>, <B><A HREF="sane.7.html">sane(7)</A></B>
|
||
|
||
|
||
</PRE>
|
||
<H2>AUTHOR</H2><PRE>
|
||
This backend has been developed by Stéphane Voltz.
|
||
<I>http://stef.dev.free.fr/sane/rts8891</I>
|
||
|
||
|
||
</PRE>
|
||
<H2>CREDITS</H2><PRE>
|
||
Many thanks go to:
|
||
Laurent Fournier who donated me a HP4470c. Vladimir Sysoev and
|
||
"TheUnruly Squash" for the time they spent recording USB activ‐
|
||
ity and testing the experimental version on HP4400 models.
|
||
|
||
8 Dec 2008 <B><A HREF="sane-rts8891.5.html">sane-rts8891(5)</A></B>
|
||
</PRE>
|
||
<HR>
|
||
<ADDRESS>
|
||
Man(1) output converted with
|
||
<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a>
|
||
</ADDRESS>
|
||
</BODY>
|
||
</HTML>
|