Jim McQuillan <j...@mcquil.com> writes:
> Rodolfo,
>
> It shows pretty clearly that you are missing the ps1fw.usb firmware file.
>
> A quick search of google revealed that this file should be on the
> CDRom that came with the scanner, and also it's available from the
> gt68xx-backend web page at:
>
> http://www.meier-geinitz.de/sane/gt68xx-backend/
>
> Just search on that page for ps1fw.usb, and you'll find the link where
> you can grab the file from.
>
> Once you have the file, drop it into the /usr/share/sane/gt68xx directory.
Thanks.
I did as you suggest, then I did:
# sane-find-scanner
and the output was:
found USB scanner (vendor=0x05d8, product=0x4002, chip=GT-6801) at
libusb:001:003
. Then I did:
# scanimage -h
and suddenly a TERRIBLE noise came out from the scanner, while the output was:
[...]
Options specific to device `gt68xx:libusb:001:003':
Scan Mode:
--mode Color|Gray|Lineart [Gray]
Selects the scan mode (e.g., lineart, monochrome, or color).
--gray-mode-color Red|Green|Blue [Green]
Selects which scan color is used gray mode (default: green).
--source Flatbed|Transparency Adapter [inactive]
Selects the scan source (such as a document-feeder).
--preview[=(yes|no)] [no]
Request a preview-quality scan.
--depth 8|12 [8]
Number of bits per sample, typical values are 1 for "line-art" and 8
for multibit scans.
--resolution 50|75|150|300|600|1200dpi [300]
Sets the resolution of the scanned image.
--lamp-off-at-exit[=(yes|no)] [inactive]
Turn off lamp when program exits
--backtrack[=(yes|no)] [no]
Controls whether backtracking is forced.
Debugging Options:
--auto-warmup[=(yes|no)] [inactive]
Warm-up until the lamp's brightness is constant instead of insisting
on 60 seconds warm-up time.
--full-scan[=(yes|no)] [inactive]
Scan the complete scanning area including calibration strip. Be
careful. Don't select the full height. For testing only.
--coarse-calibration[=(yes|no)] [inactive]
Setup gain and offset for scanning automatically. If this option is
disabled, options for setting the analog frontend parameters manually
are provided. This option is enabled by default. For testing only.
--coarse-calibration-once[=(yes|no)] [inactive]
Coarse calibration is only done for the first scan. Works with most
scanners and can save scanning time. If the image brightness is
different with each scan, disable this option. For testing only.
--quality-cal[=(yes|no)] [inactive]
Quality calibration
--fast-preview[=(yes|no)] [inactive]
Request that all previews are done in the fastest (low-quality) mode.
This may be a non-color mode or a low resolution mode.
--backtrack-lines 0..255 [inactive]
Number of lines the scan slider moves back when backtracking occurs.
That happens when the scanner scans faster than the computer can
receive the data. Low values cause faster scans but increase the risk
of omitting lines.
Enhancement:
--gamma-value 0.00999451..5 (in steps of 0.00999451) [2]
Sets the gamma value of all channels.
--threshold 0..255 [inactive]
Select minimum-brightness to get a white point
Geometry:
-l 0..217mm [0]
Top-left x position of scan area.
-t 0..299mm [0]
Top-left y position of scan area.
-x 0..217mm [217]
Width of scan-area.
-y 0..299mm [299]
Height of scan-area.
Type ``scanimage --help -d DEVICE'' to get list of all options for DEVICE.
List of available devices:
gt68xx:libusb:001:003
. Then I did:
# scanimage -d gt68xx:libusb:001:003 --format tiff > file.tif
, but:
scanimage: open of device gt68xx:libusb:001:003 failed: Invalid argument
. What do you think?
Thanks indeed,
Rodolfo
