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

NAME
       sane-pieusb  -  SANE  backend  for USB-connected	PIE PowerSlide and Re-
       flecta DigitDia/CrystalScan/ProScan slide scanners

DESCRIPTION
       The sane-pieusb library implements a SANE  (Scanner  Access  Now	 Easy)
       backend	that  provides	access to USB-connected	PIE and	Reflecta slide
       scanners.
       At present, the following scanners should work with this	backend:

       Model:			 Status
       ------------------------- ------
       PIE PowerSlide 3600	 Untested
       PIE PowerSlide 3650	 Untested
       PIE PowerSlide 4000	 Untested
       PIE PowerSlide 5000	 Untested
       Reflecta	CrystalScan 7200 Untested
       Reflecta	ProScan	4000	 Untested
       Reflecta	ProScan	7200	 Untested
       Reflecta	DigitDia 3600	 Untested
       Reflecta	DigitDia 4000	 Untested
       Reflecta	DigitDia 5000	 Untested
       Reflecta	DigitDia 6000	 Ok

MULTIPLE SLIDES
       Support for multiple slide scanners (like the  PowerSlide  or  DigitDia
       series)	is  done by auto-advancing ('Advance slide' setting) the slide
       after each scan.

       However,	for best results, it is	recommended to do a preview for	 every
       slide  since  this sets gamma, brightness, and contrast to optimal val-
       ues.

       Attention: SANE does not	have an	automatic landscape/portrait detection
       and  re-orientation  when scanning multiple slides. You have to put all
       slides into one orientation first !

DIRT REMOVAL
       If available, pieusb supports infrared scans for	dirt detection and re-
       moval. This must	be enabled via the 'Clean image' setting.

KNOWN PROBLEMS
       The  pieusb backend supports dirt removal based on infrared scan	infor-
       mation. Since SANE does not provide  post-processing  in	 the  backend,
       pieusb  does  the scanning and dirt removal during the setup phase. The
       'scan' phase is only used to transfer the completed  image.   Therefore
       pieusb  does  not  multi-thread	making	a  typical  frontend appear as
       'blocked'. Also cancel requests are only	honored	between	scans.

ENVIRONMENT
       SANE_DEBUG_PIEUSB
	      If the library was compiled with debug support enabled, this en-
	      vironment	 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.

	      level   debug output
	      ------- ------------------------------
	       0       nothing
	       1       errors
	       2       warnings	& minor	errors
	       5       additional information
	       7       SANE api	calls
	       9       backend functions
	      11       scanner functions
	      13       usb functions
	      15       image buffer functions

FILES
       /usr/local/etc/sane.d/pieusb.conf
	      The backend configuration	file

       /usr/local/lib/sane/libsane-pieusb.a
	      The static library implementing this backend.

       /usr/local/lib/sane/libsane-pieusb.so
	      The shared library implementing this backend (present on systems
	      that support dynamic loading).

SEE ALSO
       sane(7)

CONTACT	AND BUG-REPORTS
       Please send any information and bug-reports to:
       Klaus K~Aoxmpf <kkaempf@suse.com>

AUTHORS
       The pieusb backend is based on work by Jan Vleeshouwers,	Michael	 Rick-
       mann, and Klaus KAxmpf

				  10 Aug 2015			sane-pieusb(5)

NAME | DESCRIPTION | MULTIPLE SLIDES | DIRT REMOVAL | KNOWN PROBLEMS | ENVIRONMENT | FILES | SEE ALSO | CONTACT AND BUG-REPORTS | AUTHORS

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