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

[Rolf Bensch]

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
>