sane-coolscan - SANE backend for Nikon film-scanners


   This file is a short description of the coolscan-backend for sane!


   The  sane-coolscan  library implements a SANE backend that provides the
   interface to the following Nikon Coolscan Film  scanners:  Nikon  LS20,
   LS30, LS1000, LS2000.

   Even  though  the  backend has worked for a number of people, there are
   still  some  problems,  especially  in  combination  with   some   SCSI
   card/drivers (AHA-1505/aha152x.o) and the autofocus command. You should
   consider this backend 'alpha' and be careful when using  it  the  first


   The    configuration    file    for    this    backend    resides    in

   Its contents is a  list  of  device  names  that  correspond  to  Nikon
   Coolscan  scanners. Empty lines and lines starting with a hash mark (#)
   are ignored. A sample configuration file is shown below:

    #scsi Vendor Model Type
    scsi Nikon * Scanner

   The special device name must be a generic SCSI device or a  symlink  to
   such  a  device.   To find out to which device your scanner is assigned
   and how you have to set the permissions of that device, have a look  at


   Some  SCSI-adapters  and  low-level  SCSI drivers do not work correctly
   with this backend and the Coolscan scanners. These  systems  hang  when
   the  autofocus  command is send to the Scanner.  To see a list of which
   card/driver  combinations  work  or  don't  work  have   a   look   at:


   The backend configuration file:

   The static library implementing this backend:

   The shared library implementing this backend:
          /usr/lib/arch_triplet/sane/    (present    on
          systems that support dynamic loading)


          If the library was compiled with  debug  support  enabled,  this
          environment  variable controls the debug level for this backend.
          E.g., a value of 128 requests all debug output  to  be  printed.
          Smaller levels reduce verbosity: SANE_DEBUG_COOLSCAN values


          on bash:
          export SANE_DEBUG_COOLSCAN=8

          on csh:
          setenv SANE_DEBUG_COOLSCAN 8


   The  autofocus  command  does  not  work  with  some  SCSI  card/driver

   The gamma table is not implemented for the LS1000 yet.

   The dust-removal is not working yet

          The homepage of this backend
          The original version of the coolscan backend by Didier

   sane(7), sane-scsi(5)


   Didier Carlier - For writing the original Coolscan backend (without  it
   I would not have started this)

   Oliver Rauch - For adapting xsane so quickly to the infrared stuff.

   All the other people working on SANE.


   Andreas Rick


                              13 Jul 2008                 sane-coolscan(5)


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.

Free Software

Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.

Free Books

The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.