Section: SANE Scanner Access Now Easy (5)
Updated: 8 Dec 2008
The sane-rts8891 library implements a SANE (Scanner Access Now Easy) backend that provides access to scanners based on the rts8891 ASIC.
The scanners that work with this backend are:
Vendor Model status ---------------------- ----------- Umax Astra 4400 untested Umax Astra 4450 untested HP scanjet 4000c good HP scanjet 4470c good
The options the backend supports can either be selected through command line options to programs like scanimage or through GUI elements in xscanimage or xsane.
If you have any strange behavior, please report to the backend maintainer or to the SANE mailing list.
Valid command line options and their syntax can be listed by using
:Scan Mode Options
Value Hor. Resolution Vert. Resolution ----- --------------- ------------------- 75 75dpi 75dpi 150 150dpi 150dpi 300 300dpi 300dpi 600 600dpi 600dpi 1200 1200dpi 1200dpi
The configuration file /etc/sane.d/rts8891.conf contains the usb device ids of supported scanners (eg usb 0x043d 0x007c) and scanner configuration options. Empty lines and lines starting with a hash mark (#) are ignored.
The options supported are allowsharing , modelnumber
allowsharing enables or not the sharing of the scanner between multiple frontends at the same time.
modelnumber is used to force the reported model by the backend and is only useful in the case of a scanner which NVRAM has been erased.
0 to report a HP4470c. 1 to report a HP4400c. 2 to report an Astra 4400.
Scanners of the same model exist with different sensors, due to lack of data (ie USB logs) some sensors are better supported than others. At least 75 dpi mode is working for any model. Sharing the scanner between several frontends at the same time (allowsharing option) may not work on some USB controllers.
No bugs currently known.
:This backend has been developed by Stéphane Voltz. <DD CLASS="c3|http://stef.dev.free.fr/sane/rts8891
Tutoriais de Tecnologia Web