Section: SANE (5)
Updated: 11 Jul 2008
The sane-artec_eplus48u library implements a SANE (Scanner Access Now Easy) backend that provides access to several USB flatbed scanners using the GT6816 chipset like the Artec E+ 48U. These scanners have a contact image sensor (CIS) and an USB interface.
A complete list of supported devices can be found on http://www.sane-project.org/sane-supported-devices.html.
This is ALPHA software. Especially if you test new or untested scanners, keep your hand at the scanner's plug and unplug it, if the head bumps at the end of the scan area.
If you own a scanner other than the ones mentioned on the list that works with this backend, please let us know this by sending the scanner's exact model name and the USB vendor and product ids (e.g. from /proc/bus/usb/devices, sane-find-scanner or syslog) to me. Even if the scanner's name is only slightly different from the models mentioned above, please let me know.
If libusb-0.1.6 or later is installed, this section can be skipped. The scanner should be found by sane-find-scanner without further actions. For setting permissions and general USB information look at sane-usb?(5).
When you are using the scanner module, a Linux kernel 2.4.12 or newer is required.
You need a firmware file for your scanner. That's a small file containing software that will be uploaded to the scanner's memory. For the scanners mentioned above, it's usually named Artec48.usb or 1200.usb. You can find it on the installation CD that was provided by the manufacturer, normally in the directory Win98, WinMe or similar. If the Windows-driver is installed on your computer, then you can also find the firmware file under c:\windows\system32\drivers.
The contents of the artec_eplus48u.conf file is a list of usb lines containing vendor and product ids that correspond to USB scanners. The file can also contain option lines. Empty lines and lines starting with a hash mark (#) are ignored. The scanners are autodetected by usb vendor_id product_id statements which are already included into artec_eplus48u.conf . "vendor_id" and "product_id" are hexadecimal numbers that identify the scanner.
Every usb section can have additional options
- artecFirmwareFile /usr/share/sane/artec_eplus48u/Artec48.usb
- The path to the firmware file. This option is required.:
- masterGamma 1.9
- These are the default gamma values. If you set the "Defaults" option with a frontend, then the gamma options are reset to the values specified here.:
- blueExposure 0xdc
- These are the default values for offset and exposure time. You can e.g. change them to speed up calibration, if you don't want to save the calibration data to disk.:
- modelString E+ 48U
- By default, the scanner is reported as "Artec E+ 48U". If you don't like this, e.g. because you have an Tevion MD 9693, then change the options accordingly.:
- The backend configuration file (see also description of SANE_CONFIG_DIR below).:
- The static library implementing this backend.:
- The shared library implementing this backend (present on systems that support dynamic loading).:
- This environment variable specifies the list of directories that may contain the configuration file. Under UNIX, the directories are separated by a colon (`:'), under OS/2, they are separated by a semi-colon (`;'). If this variable is not set, the configuration file is searched in two default directories: first, the current working directory (".") and then in /usr/local/etc/sane.d. If the value of the environment variable ends with the directory separator character, then the default directories are searched after the explicitly specified directories. For example, setting SANE_CONFIG_DIR to "/tmp/config:" would result in directories "tmp/config", ".", and "/usr/local/etc/sane.d" being searched (in this order).:
- 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.
Example: export SANE_DEBUG_ARTEC_EPLUS48U=3
This backend is based on the gt68xx test-program written by Sergey Vlasov, Andreas Nowack, and David Stevenson. Thanks to everyone who tested the backend or reported bugs.
This backend has been tested on Linux only. If you are using it on a different platform, please contact us.
Interpolation with 1200 dpi is weak.
Support for buttons is missing due to missing support in SANE.
Please contact us if you find a bug: http://www.sane-project.org/bugs.html.