The following parameters are
examples !
Because the parameters depend on the connected scanner.
These examples were made on a Fujitsu 4220 duplex scanner
with flatbed unit:
Ok, this is the commad you
are calling. Not much to say about that
--device /dev/sg2
Selects the device to scan from. This is
needed since scanDoX can trigger more than one scanner
at same time. To figure out on which device the scanner
is connected use sane-find-scanner
or use scanDoX-setup
--mode Gray
Selects the scan mode. In this case we
want to scan a grayscale image
--resolution 300
Selects the dpi resolution for scanning.
If not given scanDoX will use the scanner default value.
--format tiff
Selects the output format. The default
is pnm (portable anymap - a Linux specific exchange format).
On some scanners there is a possibility to scan with hardware
jpeg-compression (we surely support that feature).
But in this case we want to aquire a tiff image.
>
output redirect
A cool feature of Linux is that you can easily send the
info that normally gets printed on the screen into a file
instead. This is called redirecting output. For example,
ls > newFile.txt, will list
all files in a directory and write them to a file called
"newFile.txt". If "newFile.txt" already
exists, the contents will be overwritten, otherwise a
new file will be created.
scanDoX_test.tif
This is the filename to place the scanned
data.
Example 2: ADF Scanning
Now we are going
to use the ADF for a so called batch-scan.
batch-count tells scanDoX
that you want to scan more than one page. How much more
is defined with the value given. In this case 10. This
commands scanDoX to scan 10 pages. If the feeder is out
of documents before 10 is reaches scanDoX will show a
message.
--batch=scanDoX%03d.tif
This is an addition to
batch-count the batch parameter is needed. Batch defines
a name pattern for the names of the output-file. %03d means reserve 3 decimal
digits for consecutive numbering.
This means the files are numbered like this:
scanDoX001.tif
scanDoX002.tif
scanDoX003.tif etc.
2>&1
This is optional. It is another
variant of the output redirect.
It redirects STDERR to STDOUT.
So you can see all the errors that might occur on your
console instead of looking in the log file.
Tipp: If you want to scann everything till
there is no more paper in the feeder, just give a value like
--batch-count=999.
Example 3: Duplex Scanning
Ok let's look
behind it. Now we are performing a single page duplex
scan.
I guess this is self explaining.
It enables the duplex support to scan both sides of the
page.
--batch-count=2
With the duplex option comes
an important specialty in batch-count.
It has to be doubled when duplex scanning.
So if you want to scan 10 pages duplex, batch-count has
to be 20 !
