I have done more tests:
The problem is independent of the color mode (Lineart, Gray, Color), the
compression mode (JPEG, None), and the connection type (USB, network).
So it is enough if you can reach a device via the network.
The problem only occurs if the number of pages to scan is > 1 (field in
the upper left of the main window of xsane).
It occurs when the scanner runs out of pages.
Either when the number of pages is > 1 and no page is in the ADF, so
that the scanner scans from the glass. It scans the one page on the
glass and crashes afterwards (probably when trying to scan the second page).
Or when the number of pages in the ADF is smaller than the number of
pages requested. Then it crashes after scanning the last page in the ADF.
If the number of requested pages is 1 or if the ADF contains at least
the requested number of pages, there is no crash.
The expected behaviour would be a window popping up asking the user for
feeding more pages, either putting them into the ADF, or changing the
page on the glass. If this is not possible changes in xsane, then at
least there should be an error state reported back to xsane telling that
the job cannot be completed due to lack of pages available in the scanner.
When I reported the bug in the first place I did not see that I had the
number of requested pages standing on 4 and not on 1.
Till
Suffield, David wrote:
> Hi Till,
> I want to make sure I understand the problem. Based on your feedback it
> looks like the second scan job never gets started and timeout with an
> error. Sounds like the first scan job hangs the LJ3390. Is this correct?
>
> Does this happen with any Scan Mode - lineart, grayscale or color?
>
> Does this happen with USB or network?
>
> Are you using flatbed scanning only, no ADF?
>
> How about compression - jpeg or none?
>
> I don't have a LJ3390 yet and I have not been able to reproduce the
> problem on a LJ3380. If it fails on the network, I may be able to
> troubleshoot the problem over the network.
>
> -dave
>
> -----Original Message-----
>> From: [EMAIL PROTECTED]
>> [mailto:[EMAIL PROTECTED] On Behalf
>> Of Till Kamppeter
>> Sent: Monday, February 19, 2007 12:01 PM
>> To: hplip-devel@lists.sourceforge.net
>> Subject: [HPLIP-Devel] Scanning problem with HP LaserJet 3390 AIO
>>
>> Hi,
>>
>> I am scanning with this device via xsane and I have tested
>> both via USB and via network.
>>
>> The preview scan work fine and has no problems. The real scan
>> into a file or into the viewer principally works, but in the
>> end of the scan process xsane hangs for a minute or so and
>> then gives an I/O error.
>> probably because it runs into a timeout. The scanned files or
>> the images visible in the viewer are OK. Only problem is that
>> the GUI of xsane and the viewer gets blocked until the error
>> message shows up. In addition, the scanner is completely
>> crashed then and needs to be power-cycled.
>>
>> The error windows always tell "Failed to start scanner: Error
>> during device I/O"
>>
>> I have done a
>>
>> SANE_DEBUG_HPAIO=8 xsane 2>file &
>>
>> and attached the log file. With xsane I have done a more or
>> less A4-sized scan in 100 dpi grayscale into the viewer. The
>> viewer showed the picture but was frozen (no redraw when
>> wiping with another window over it) until the error message
>> showed up. When the error message showed up I clicked OK and
>> then closed xsane with "File"/"Quit" in xsane's main window.
>>
>> I am using HPLIP 1.7.1. In 1.6.10 the problem did not occur.
>>
>> Till
>>
>
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