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 /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
/etc/sane.d/canon_lide70.conf
The backend configuration file
/usr/lib/x86_64-linux-gnu/sane/libsane-canon_lide70.a
The static library implementing this backend.
/usr/lib/x86_64-linux-gnu/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)
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