[sane-devel] HP Officejet 6700 Premium keeps on scanning using ADF

[gobo]

i tested the oj 8600 about a year ago.  when the adf option was
selected, you had to use the -batch=n option and give it the number of
pages.  at that time, the hplip backend required batch mode with the
adf.

if you wanted to scan three sheets in different steps, you could not.
the printer was going to pull all the sheets in the tray through the
scanner even if you only wanted one sheet at a time.  again, this was
a year ago, the hplip backend may be different today.

i didn't want to rewrite a whole pile of scripts for these changes, so
found a supply of older aio's.



On 7/7/14, Marc Hoersken <info at marc-hoersken.de> wrote:
> Hello everyone,
>
> I am having trouble with a HP Officejet 6700 Premium using hplip. If the
> ADF is selected as source, the device keeps on scanning even if I just
> want to scan for example 1 out of 2 documents in the ADF.
>
> The problem is that the device scans faster than WiaSane [1] is able to
> receive the scanned image data. This leads to the second page being
> actually skipped. The same happens if I use scanimage like the following:
>
> scanimage -v -d "hpaio:/net/Officejet_6700?ip=10.2.2.67" --source "ADF"
> -p > test.jpg
> scanimage: scanning image of size 633x877 pixels at 24 bits/pixel
> scanimage: acquiring RGB frame
> scanimage: min/max graylevel value = 8/255
> scanimage: read 1640736 bytes in total
>
> It does however not happen if I use scanimage in batch mode, for example
> like this:
>
> scanimage -v -d "hpaio:/net/Officejet_6700?ip=10.2.2.67" --source "ADF"
> -b -p
>
> Attached you will find the network traffic between WiaSane and my SANEd
> server. [2]
> I would appreciate any help on this issue, thanks in advance!
>
> Best regards,
> Marc
>
> PS: You can use my SANE dissector to take a look at the Wireshark capture.
>
>  [1] https://github.com/mback2k/wiasane
>  [2] https://www.dropbox.com/s/3kl45lel933yx8z/sane-scan.zip
>  [3]
> http://lists.alioth.debian.org/pipermail/sane-devel/2014-July/032489.html
>
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