magicolor backend (alpha-quality)
Reinhold Kainhofer <reinhold <at> kainhofer.com>
2010-10-04 23:19:47 GMT
My backend for KONICA MINOLTA devices (currently only the magicolor 1690mf
multi-function scanner) is progressing nicely. My current status (I would call
it a working prototype) can be found in my git repository:
http://repo.or.cz/w/sane-backend-magicolor.git
So far, B/W and grayscale scanning (whole scan area and parts of it) work over
the network (also in xsane).
Of course, there are still lots of things to be done:
-) USB connections are not yet supported at all
-) network connections have no auto-detection (over SNMP) yet, so you
have to enter "net 10.0.0.5" (or whatever the IP of the scanner is)
to the etc/sane.d/magicolor.conf configuration file)
-) Color scanning does not properly work, as I still have to figure
out the exact data format
-) The backend is missing better error checks. In particular, the status
is requested not often enough to be on the safe side.
-) Scanning from the ADF works only for the first page, the other pages
are ignored (and xsane reports that nothing was scanned?!)
If you are interested in the backend, you can clone the git repo and compile
the backend. It should configure and build propertly (i.e. ./configure; make;
make install), but you need to have some libraries installed, but of course
./configure should tell you about missing dependencies.
You can either install the backend to the default prefix (ie. no --prefix
passed to configure), or to any other prefix you like. The latter only works
if you have the latest development version of sane from git installed. In that
case, you can set
export SANE_CONFIG_DIR=/home/reinhold/.build/etc/sane.d:/etc/sane.d:
export LD_LIBRARY_PATH=/home/reinhold/.build/lib/sane/:$LD_LIBRARY_PATH
to force sane to take the configuration from that directory.
To debug the backend, in case you run into problems (I would be surprised if
you don't!), set the environment variables
export SANE_DEBUG_DLL=127
export SANE_DEBUG_MAGICOLOR=99999
to get useful debug output on the console.
And finally, the usual warning: This backend is in the early stages of
development, so try it at your own risk. If you do try it, make sure you are
near the device to turn it off in case of emergencies.
For me, B/W and grayscale scanning works, but in the past I had some problems
with the scanner trying to send more data. The device then hangs and needs to
be turned off and on again. I hope to have fixed that problem.
Cheers,
Reinhold
PS: I now have a much better understanding of the scanning protocol, which I
have again put on the web: http://wiki.kainhofer.com/hardware/magicolor_scan
--
--
------------------------------------------------------------------
Reinhold Kainhofer, reinhold <at> kainhofer.com, http://reinhold.kainhofer.com/
* Financial & Actuarial Math., Vienna Univ. of Technology, Austria
* http://www.fam.tuwien.ac.at/, DVR: 0005886
* LilyPond, Music typesetting, http://www.lilypond.org
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