[sane-devel] Canon MX430 / MX510 / MX925 - does not recover when ADF out of paper

Mon Apr 21 14:23:55 UTC 2014

Hallo Rolf,

I'm sorry I couldn't answer earlier.

That patch screwed it, no scans possible.

Grüße
Matthias

On 03.04.2014 20:47, Rolf Bensch wrote:
> Hi All,
>
> It seems that ADF out of paper issue is fixed now.
>
> Please test attached final patch, which is based on latest git sources.
>
> Please confirm that this patch fixes ADF out of paper issue for your
> particular scanner.
>
> I'll commit this patch and some document updates after your confirmation.
>
> Many thanks for your help.
>
> Cheers,
> Rolf
>
>
>
> Am 02.04.2014 20:54, schrieb Matthias Peter Walther:
>> Hello Rolf,
>>
>> here the requested logfile.
>>
>> Bye
>> Matthias
>>
>> On 26.03.2014 17:22, Rolf Bensch wrote:
>>> Hi Matthias,
>>>
>>> I prepared a patch for the "stopped the 2nd paper by hand" issue. The
>>> patch is based on patch4.
>>>
>>> Please revert this patch: pixma_common.c.patch4. With this patch my
>>> system has too fast timeouts, and without this patch the timeouts take 1
>>> sec. Please try to fix this by yourself. On the other hand there are no
>>> timeouts when everything is working as expected.
>>>
>>> Cheers,
>>> Rolf
>>>
>>>
>>> Am 23.03.2014 14:54, schrieb Matthias Peter Walther:
>>>> Hello Rolf,
>>>>
>>>> I created three more logs.
>>>>
>>>> And the timeouts are not fixed. In fact it's gotten even worse,
>>>> scanimage is captured in an (infinite(?)) loop of timeouts of which each
>>>> loop takes several minuites. Watch log "3rd_try".
>>>>
>>>> Bye
>>>> Matthias
>>>>
>>>> On 21.03.2014 18:21, Rolf Bensch wrote:
>>>>> Hi Matthias,
>>>>>
>>>>> I need a new log file for this issue:
>>>>>
>>>>>>>> And in the debug level 11 Iog I stopped the 2nd paper by hand.
>>>>>>>> Scanner and sane aborts. But after removing the paper and pressing
>>>>>>>> ok on the device, nothing happens anymore.
>>>>> and the 2nd patch is for this issue:
>>>>>
>>>>>>>> By the way. The timeouts in the sane logs are still rediculous.
>>>>>>>> When it counts down, between each line it waits up the 40 seconds
>>>>>>>> and not the amount of seconds it says in the log.
>>>>> and please test normal ADF scanning again.
>>>>>
>>>>> Cheers,
>>>>> Rolf
>>>>>
>>>>>
>>>>> Am 21.03.2014 00:16, schrieb Matthias Peter Walther:
>>>>>> Hello,
>>>>>>
>>>>>> I'm not sure if I did this right. I installed the two patches shipped
>>>>>> with your last email and used this command:
>>>>>>
>>>>>> $ export SANE_DEBUG_PIXMA=11
>>>>>> $ scanimage -x 100 -y 100 > test.png 2>
>>>>>> Scanimage_Debug_11_patch1+2+3new+4+Pressed_cancel_after_device_started.txt
>>>>>>
>>>>>> After the scanner started, I pressed cancel on the device. Is this what
>>>>>> you need?
>>>>>>
>>>>>> Bye
>>>>>> Matthias
>>>>>>
>>>>>>
>>>>>> Am 20.03.2014 18:05, schrieb Rolf Bensch:
>>>>>>> Hi Matthias,
>>>>>>>
>>>>>>> Please don't mix different testings in one log file and at the same
>>>>>>> time. Please keep them in mind and let us go step by step.
>>>>>>>
>>>>>>> I assume that "normal" ADF scanning works with new patch 3.
>>>>>>>
>>>>>>> Am 19.03.2014 19:46, schrieb Matthias Peter Walther:
>>>>>>>> Standard debug level 4 scan, the last 1 mm is still missing. As this
>>>>>>>> seems to be firmware related, I think sane won't be able to change this.
>>>>>>>> The linux binary has the same problem. And I tested it in windows with
>>>>>>>> IrfanView. The last mm is still missing under windows, too. I think this
>>>>>>>> is a firmware issue?
>>>>>>>>
>>>>>>> I guess the ADF hardware needs the last 1mm for the paper detector.
>>>>>>>
>>>>>>>> Maybe you just set the maximum height of an adf page to that last line
>>>>>>>> it scans. That is 870 pixels @75 dpi.
>>>>>>>>
>>>>>>> I won't do so. What's when you want to scan a 14" sheet or A5 format?
>>>>>>> Please set the used paper size in the frontend. Then you can also crop
>>>>>>> left and right ADF frame.
>>>>>>>
>>>>>>>> And in the debug level 11 Iog I stopped the 2nd paper by hand. Scanner
>>>>>>>> and sane aborts. But after removing the paper and pressing ok on the
>>>>>>>> device, nothing happens anymore.
>>>>>>>>
>>>>>>> I see this error in the log file: "cancelled by hardware". The problem
>>>>>>> is that the scan process has not been closed and the scanner cannot be
>>>>>>> initialised for a new scan session because the previous is still active
>>>>>>> in the scanner.
>>>>>>>
>>>>>>> To fix this I need the exact position in the code where "cancelled by
>>>>>>> hardware" is detected. Please create a new log file with usb messages
>>>>>>> with attached patch "pixma_mp150.c.patch4".
>>>>>>>
>>>>>>> And please scan a small area @ 75 dpi, not a whole page. This reduces
>>>>>>> log file size.
>>>>>>>
>>>>>>>> The same bug comes, if you interrupt the scan with ctrl + C (scanimage).
>>>>>>>> The printer continues pulling pages, but does not recover after it has
>>>>>>>> finished. That works correctly with the binary. If I recover the scanner
>>>>>>>> with the binary driver, that requires up to three attempts. During the
>>>>>>>> first and often the second, it searches the scanner for 2 minuites and
>>>>>>>> aborts then. After that the second failure the scanner works prefectly
>>>>>>>> again. Maybe it's just a timeout in the devices firmware?
>>>>>>>>
>>>>>>> I assume that this is the same problem as above.
>>>>>>>
>>>>>>>> By the way. The timeouts in the sane logs are still rediculous. When it
>>>>>>>> counts down, between each line it waits up the 40 seconds and not the
>>>>>>>> amount of seconds it says in the log.
>>>>>>>>
>>>>>>> Maybe "pixma_common.c.patch4" will fix this.
>>>>>>>
>>>>>>>> I had to zip the logs, cause they are larger than 100 KB and the mailing
>>>>>>>> list server doesn't accept that.
>>>>>>>>
>>>>>>>> Last question: Is it possible to autodetect if adf has paper and
>>>>>>>> autoswitch the input method? Some scanner are able to do that.
>>>>>>>>
>>>>>>> Please keep this in mind.
>>>>>>>
>>>>>>> Cheers,
>>>>>>> Rolf

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