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

Wed Apr 2 18:54:03 UTC 2014

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

-------------- next part --------------
[sanei_debug] Setting debug level of pixma to 4.
[pixma] pixma is compiled with pthread support.
[pixma] pixma version 0.17.6
[pixma] pixma_collect_devices() found Canon PIXMA MX370 Series at libusb:002:004
[pixma] pixma_find_scanners() found 1 devices
[pixma] pixma_collect_devices() found Canon PIXMA MX370 Series at libusb:002:004
[pixma] pixma_open(): Canon PIXMA MX370 Series
Scanning -1 pages, incrementing by 1, numbering from 1
Scanning page 1
[pixma] Reader task started
[pixma] Reader task id=140219571316480 (threaded)
[pixma] 
[pixma] pixma_scan(): start
[pixma]   line_size=1914 image_size=2009700 channels=3 depth=8
[pixma]   dpi=75x75 offset=(0,0) dimension=638x1050
[pixma]   gamma_table=0x2350c10 source=1
[pixma]   threshold=127 threshold_curve=0
[pixma]   ADF page count: 0
[pixma] Current status: paper=0 cal=0 lamp=0 busy=0
[pixma] *mp150_scan***** start scanning *****
[pixma] *mp150_fill_buffer***** end of image  *****
[pixma] *mp150_finish_scan***** wait for next page from ADF  *****
[pixma] WARNING:image size mismatches
[pixma]     2009700 expected (1050 lines) but 1667094 received (871 lines)
[pixma] pixma_read_image(): completed (underrun detected)
[pixma] Reader task terminated
Scanned page 1. (scanner status = 5)
Scanning page 2
[pixma] Reader task started
[pixma] 
[pixma] pixma_scan(): start
[pixma]   line_size=1914 image_size=2009700 channels=3 depth=8
[pixma]   dpi=75x75 offset=(0,0) dimension=638x1050
[pixma]   gamma_table=0x2350c10 source=1
[pixma]   threshold=127 threshold_curve=0
[pixma]   ADF page count: 1
[pixma] Reader task id=140219571316480 (threaded)
[pixma] Current status: paper=0 cal=0 lamp=0 busy=0
[pixma] *mp150_scan***** scan next sheet from ADF  *****
[pixma] *mp150_fill_buffer***** scanner error (-7): end scan  *****
[pixma] *mp150_finish_scan***** abort session  *****
[pixma] pixma_read_image(): cancelled by hardware
[pixma] Reader task terminated: ECANCELED
[pixma] read_image():reader task closed the pipe:0 bytes received, 2009700 bytes expected
scanimage: sane_read: Operation was cancelled
Scanned page 2. (scanner status = 2)
[pixma] pixma_close(): Canon PIXMA MX370 Series