kopia lustrzana https://gitlab.com/sane-project/backends
160 wiersze
4.4 KiB
Groff
160 wiersze
4.4 KiB
Groff
.TH "sane\-rts8891" "5" "8 Dec 2008" "@PACKAGEVERSION@" "SANE Scanner Access Now Easy"
|
||
.SH "NAME"
|
||
sane\-rts8891 \- SANE backend for rts8891 based scanners
|
||
.SH "DESCRIPTION"
|
||
The
|
||
.B sane\-rts8891
|
||
library implements a SANE (Scanner Access Now Easy) backend that
|
||
provides access to scanners based on the rts8891 ASIC.
|
||
.PP
|
||
The scanners that work with this backend are:
|
||
.PP
|
||
.RS
|
||
.ft CR
|
||
.nf
|
||
Vendor Model status
|
||
\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \-\-\-\-\-\-\-\-\-\-\-
|
||
Umax Astra 4400 untested
|
||
Umax Astra 4450 untested
|
||
HP scanjet 4000c good
|
||
HP scanjet 4470c good
|
||
.fi
|
||
.ft R
|
||
.RE
|
||
|
||
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.
|
||
|
||
.br
|
||
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
|
||
.RS
|
||
scanimage \-\-help \-d rts8891
|
||
.RE
|
||
|
||
.TP
|
||
.B Scan Mode Options
|
||
|
||
.TP
|
||
.B \-\-mode
|
||
selects the basic mode of operation of the scanner valid choices are
|
||
.I R Color ,
|
||
.I Gray
|
||
and
|
||
.I Lineart
|
||
The default mode is Color. The Lineart mode is black and white only (1 bit).
|
||
Grayscale will produce 256 levels of gray (8 bits). Color mode allows for over
|
||
16 million different colors produced from 24 bits of color information.
|
||
|
||
.TP
|
||
.B \-\-resolution
|
||
selects the resolution for a scan. The horizontal and vertical resolutions are set
|
||
by the value of this option. The scanner is capable of the following resolutions for the specified option value:
|
||
.PP
|
||
.RS
|
||
.ft CR
|
||
.nf
|
||
Value Hor. Resolution Vert. Resolution
|
||
\-\-\-\-\- \-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
|
||
75 75dpi 75dpi
|
||
150 150dpi 150dpi
|
||
300 300dpi 300dpi
|
||
600 600dpi 600dpi
|
||
1200 1200dpi 1200dpi
|
||
.fi
|
||
.ft R
|
||
.RE
|
||
|
||
.TP
|
||
.B \-\-preview
|
||
requests a preview scan. The resolution used for that scan is 75 dpi
|
||
and the scan area and the scan mode are as specified through their options,
|
||
or the default if not specified. The default value for preview mode is "no".
|
||
|
||
.TP
|
||
.B \-\-threshold
|
||
selects the minimum\-brightness to get a white point. The threshold is only used with Lineart mode scans.
|
||
It is specified as a percentage in the range 0..100% (in steps of 1).
|
||
The default value of the threshold option is 50.
|
||
|
||
|
||
.SH "CONFIGURATION FILE"
|
||
The configuration file
|
||
.B @CONFIGDIR@/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.
|
||
.PP
|
||
The two options supported are
|
||
.B allowsharing
|
||
,
|
||
.B modelnumber
|
||
.
|
||
|
||
Option
|
||
.PP
|
||
.B allowsharing
|
||
enables or not the sharing of the scanner between multiple frontends at the same time.
|
||
.PP
|
||
.B modelnumber
|
||
is used to force the reported model by the backend and is only usefull in the case of a scanner which NVRAM has been erased.
|
||
.RS
|
||
.ft CR
|
||
.nf
|
||
0 to report a HP4470c.
|
||
1 to report a HP4400c.
|
||
2 to report an Astra 4400.
|
||
.fi
|
||
.ft R
|
||
.RE
|
||
|
||
.PP
|
||
.SH "FILES"
|
||
.TP
|
||
.I @LIBDIR@/libsane\-rts8891.a
|
||
The static library implementing this backend.
|
||
.TP
|
||
.I @LIBDIR@/libsane\-rts8891.so
|
||
The shared library implementing this backend (present on systems that
|
||
support dynamic loading).
|
||
|
||
|
||
.SH "ENVIRONMENT"
|
||
.TP
|
||
.B SANE_DEBUG_RTS8891 SANE_DEBUG_RTS8891_LOW SANE_DEBUG_RTS88XX_LIB
|
||
If the library was compiled with debug support enabled, these
|
||
environment variables controls the debug level for this backend. E.g.,
|
||
a value of 255 requests all debug output to be printed. Smaller levels
|
||
reduce verbosity.
|
||
|
||
|
||
.SH "LIMITATIONS"
|
||
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 a scanner between several frontends
|
||
at the same time may not work on some USB controllers.
|
||
.PP
|
||
XPA is no (yet) supported.
|
||
.SH "BUGS"
|
||
.br
|
||
No bugs currently known.
|
||
|
||
|
||
.SH "SEE ALSO"
|
||
sane\-scsi(5), scanimage(1), xscanimage(1), xsane(1), sane(7)
|
||
|
||
|
||
.SH "AUTHOR"
|
||
.TP
|
||
This backend has been developped by St<EFBFBD>phane Voltz.
|
||
.I http://stef.dev.free.fr/sane/rts8891
|
||
.SH "CREDITS"
|
||
.TP
|
||
Many thanks go to:
|
||
Laurent Fournier who donated me a HP4470c.
|
||
Vladimir Sysoev and "TheUnruly Squash" for the time they spent recording
|
||
USB activity and testing the experimental version on HP4400 models.
|