sane-canon_lide70.5

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

NAME

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

DESCRIPTION

       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-
       ported.

       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 <sane-devel@alioth-lists.debian.net>.

CONFIGURATION

       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.

BACKEND SPECIFIC OPTIONS

       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.

       Geometry:

       -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.

FILES

       /usr/local/etc/sane.d/canon_lide70.conf
              The backend configuration file

       /usr/local/lib/sane/libsane-canon_lide70.a
              The static library implementing this backend.

       /usr/local/lib/sane/libsane-canon_lide70.so
              The shared library implementing this backend (present on systems
              that support dynamic loading).

ENVIRONMENT

       SANE_DEBUG_CANON_LIDE70
              If the library was compiled with debug support enabled, this en-
              vironment  variable  controls  the debug level for this backend.
              Higher debug levels increase the verbosity of the output.

              Example:
              SANE_DEBUG_CANON_LIDE70=128 scanimage > /dev/null

KNOWN PROBLEMS

       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.

SEE ALSO

       sane(7), sane-usb(5), sane-find-scanner(1), scanimage(1), xsane(1),
       http://www.juergen-ernst.de/info_sane.html

AUTHOR

       pimvantend, building upon pioneering work by Juergen Ernst.

                                  22 Aug 2020             sane-canon_lide70(5)