sane-canon_lide70(5)     SANE Scanner Access Now Easy     sane-canon_lide70(5)


       sane-canon_lide70  -  SANE backend for the Canon LiDE 70 and 600(F) USB
       flatbed scanners


       The canon_lide70 library implements a SANE (Scanner  Access  Now  Easy)
       backend  that  provides  access  to the Canon Inc. CanoScan LiDE 70 and
       600(F) flatbed scanners. The film unit of the LiDE  600F  is  not  sup-

       Due  to  Canon's  unwillingness  to provide scanner documentation, this
       software was developed by analyzing the USB traffic of the  Windows  XP
       driver. The precise meaning of the individual commands that are sent to
       the scanner is known only to a very limited extent. Some sophistication
       present in the Windows XP driver has been left out. There is, for exam-
       ple, no active calibration.

       Testers and reviewers are welcome. Send your bug reports  and  comments
       to the sane-devel mailing list <>.


       The /usr/local/etc/sane.d/canon_lide70.conf file identifies the LiDE 70
       by its vendor code 0x04a9 and its product code  0x2225.  For  the  LiDE
       600(f) the product code is 0x2224.


       Scan Mode:

       --resolution 75|150|300|600|1200 [default 600]
              Sets the resolution of the scanned image in dots per inch. Scan-
              ning at 1200 dpi is not available on the LiDE 600(F) and  it  is
              very slow on the LiDE 70.

       --mode Color|Gray|Lineart [default: Color]
              Selects the scan mode. Lineart means fully black and fully white
              pixels only.

       --threshold 0..100 (in steps of 1) [default 75]
              Select minimum-brightness percentage to get a white point, rele-
              vant only for Lineart

       --non-blocking[=(yes|no)] [inactive]
              This  option has not yet been implemented. Scans are captured in
              a temporary file with a typical size of 100MB.


       -l 0..216.069 [default 0]
              Top-left x position of scan area in millimeters.

       -t 0..297 [default 0]
              Top-left y position of scan area in millimeters.

       -x 0..216.069 [default 80]
              Width of scan-area in millimeters.

       -y 0..297 [default 100]
              Height of scan-area in millimeters.


              The backend configuration file

              The static library implementing this backend.

              The shared library implementing this backend (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.
              Higher debug levels increase the verbosity of the output.

              SANE_DEBUG_CANON_LIDE70=128 scanimage > /dev/null


       At  low  resolutions  (75 and 150 dpi, implying high slider speeds) the
       LiDE 70 misses the top one millimeter of the scan  area.  This  can  be
       remedied  by  shifting  the  document one millimeter downward, in cases
       where such precision matters. Note that xsane(1) uses the 75  dpi  mode
       for prescans. The problem is worse on the LiDE 600(F), where the offset
       is five millimeters.


       sane(7), sane-usb(5), sane-find-scanner(1), scanimage(1), xsane(1),


       pimvantend, building upon pioneering work by Juergen Ernst.

                                  22 Aug 2020             sane-canon_lide70(5)

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