sane-coolscan2 man page on JazzOS

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sane-coolscan2(5)	 SANE Scanner Access Now Easy	     sane-coolscan2(5)

       sane-coolscan2 - SANE backend for Nikon Coolscan film scanners

       The  sane-coolscan2 library implements a SANE (Scanner Access Now Easy)
       backend that provides access to Nikon  Coolscan	film  scanners.	  Some
       functions  of  this backend should be considered beta-quality software.
       Most functions have been stable for a long  time,  but  of  course  new
       development  can not and will not function properly from the very first
       day. Please report any strange behaviour to the maintainer of the back‐

       At present, the following scanners are known to work with this backend:

	      Model:			   Connection Type
	      ---------------------------  -------------------
	      LS-30 (Coolscan III)	   SCSI
	      LS-2000			   SCSI
	      LS-40 ED (Coolscan IV)	   USB
	      LS-4000 ED		   IEEE 1394
	      LS-8000 ED		   IEEE 1394

       Please  send  mail to the backend author (
       to report successes or failures.

       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.

       Valid command line options and their syntax can be listed by using
	      scanimage --help -d coolscan2:<interface>:<device>
       where <interface> and <device> specify the device in  question,	as  in
       the  configuration  file (see next section). The "-d" parameter and its
       argument can be omitted to obtain  information  on  the	first  scanner
       identified. Use the command
	      scanimage -L
       to list all devices recognized by your SANE installation.

       The  options  should  be fully described by the description or tooltips
       given by frontend. Here is a description of some of the most  important
       options, in the syntax with which they must be supplied to scanimage:

       --frame <n>
	      This  option specifies which frame to operate on, if a motorized
	      film strip feeder or APS adapter are used. The frame number  <n>
	      ranges from 1 to the number of frames available, which is sensed
	      each time the backend is	initialized  (usually  each  time  you
	      start the frontend).

       --subframe <x>
	      This  option  shifts  the	 scan  window  by the specified amount
	      (default unit is mm).

	      If set to "yes", the scanner will	 read  the  infrared  channel,
	      thus  allowing defect removal in software. The infrared image is
	      read during a second scan, with no options altered. The  backend
	      must  not be restarted between the scans.	 If you use scanimage,
	      perform a batch scan with batch-count=2 to obtain the IR	infor‐

       --depth <n>
	      Here <n> can either be 8 or the maximum number of bits supported
	      by the scanner (10, 12, or 14). It specifies whether or not  the
	      scanner  reduces the scanned data to 8 bits before sending it to
	      the backend. If 8 bits are used, some information and thus image
	      quality  is  lost, but the amount of data is smaller compared to
	      higher depths. Also, many imaging	 programs  and	image  formats
	      cannot handle depths greater than 8 bits.

	      Perform  autofocus  operation. Unless otherwise specified by the
	      other options ( --focus-on-centre and friends), focusing is per‐
	      formed on the centre of the selected scan area.


       --ae   Perform  a  pre-scan to calculate exposure values automatically.
	      --ae-wb will maintain the white balance, while --ae will	adjust
	      each channel separately.

	      Multiply	all  exposure times with this value. This allows expo‐
	      sure correction without modifying white balance.

       --load Load the next slide when using the slide loader.

	      Eject the film strip or  mounted	slide  when  using  the	 slide

	      Reset  scanner. The scanner will perform the same action as when
	      power is turned on: it will eject the film strip	and  calibrate
	      itself.  Use  this  whenever  the scanner refuses to load a film
	      strip properly, as a result of which --eject does not work.

       The	 configuration	      file	  /system/resources/sane-back‐
       ends/1.0.18/etc/sane.d/coolscan2.conf  specifies the device(s) that the
       backend will use. Owing to the nature of the supported connection types
       SCSI,  USB, and IEEE 1394, the default configuration file supplied with
       the SANE distribution should work without being edited.

       Each line in the configuration file is either of the  following,	 where
       all entries are case-sensitive:

       blank or starting with a '#' character
	      These  lines  are	 ignored, thus '#' can be used to include com‐

       containing only the word "auto"
	      This instructs the backend to probe for a	 scanner  by  scanning
	      the  buses for devices with know identifiers. This is the action
	      taken when no configuration file is present.

       a line of the form <interface>:<device>
	      Here <interface> can be one of "scsi" or "usb", and <device>  is
	      the  device file of the scanner. Note that IEEE 1394 devices are
	      handled by the SBP-2 module in the kernel and appear to SANE  as
	      SCSI devices.

	      The static library implementing this backend.

	      The shared library implementing this backend (present on systems
	      that support dynamic loading).

	      Configuration file for this backend, read each time the  backend
	      is initialized.

	      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-scsi(5), sane-usb(5), scanimage(1), xscanimage(1), xsane(1)

       Currently, the SANE protocol  does  not	allow  automatically  updating
       options	whenever  the hardware changes. Thus the number of choices for
       the --frame option will be fixed when the backend is initialized	 (usu‐
       ally  when  the	user runs the frontend). In particular, if there is no
       film strip in the automatic film strip feeder when the backend is  ini‐
       tialized, the frame option will not appear at all. Also, restarting the
       frontend after swapping film adapters is strongly recommended.

       Linux kernels prior to 2.4.19 had a patch that truncated	 INQUIRY  data
       from IEEE 1394 scanners to 36 bytes, discarding vital information about
       the scanner. The IEEE 1394 models therefore only work  with  2.4.19  or

       No  real	 bugs  currently known, please report any to the backend main‐
       tainer or the SANE developers' email list.

       The   backend   is   written   and   maintained	 by    Andr�s	 Major

sane-backends 1.0.18		  22/08/2002		     sane-coolscan2(5)

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