[sane-devel] How can I help with Canon Maxify MB2000 series testing?

Sun Feb 4 11:50:16 UTC 2018

Hi Rolf,

Can you point to a short guide for getting proper USB logfiles?

Meanwhile, I noticed that wireshark do not have full support for BJNP. I
browsed SANE and CUPS sources, and the BJNP dissector, and maybe in my
spare time I'd like to improve the dissector. If you have any unofficial
doc or article/analysis about BJNP outside what's already in C sources, I'd
like to get some links.

Il dom 4 feb 2018, 12:44 Rolf Bensch <rolf at bensch-online.de> ha scritto:

> Hi Patrick,
>
> It seems that we have a general problem with ADF scanning from all
> Maxify scanners.
>
> If possible, please provide USB logfiles from a Windows machine scanning
> from ADF and duplex ADF, one page and two pages, using Wireshark. Then I
> can try to fix this.
>
> In the meantime I'll update the doc files.
>
> Many thanks for your help.
>
> Cheers,
> Rolf
>
> Am 28.01.2018 um 15:26 schrieb Patrick Roncagliolo:
> > Hi Rolf,
> >
> > I tested scanimage with different options today. In particular, I tested
> > all the combinations of connection/resolution/color available with
> > flatbed mode:
> >
> >  --Connection: usb/net
> >  --Resolution: 75/150/300/600/1200
> >  --Color: color/gray/lineart
> >
> > ...for a total of 30 tests. I can confirm that all the combinations
> > work, I have a folder with all the scans and a script, so I can
> > replicate the operation while collecting debug info by
> > setting SANE_DEBUG_PIXMA if necessary, and share all the results
> > somewhere (eg. Google Drive).
> >
> > But ADF _do not_ work for me using scanimage or scanadf. Here's a sample
> > output (SANE_DEBUG_PIXMA=3 PIXMA_EXPERIMENT=1):
> >
> > [pixma] pixma is compiled with pthread support.
> > [pixma] pixma version 0.17.45
> > [pixma] pixma_collect_devices() found Canon MAXIFY MB2300 Series at
> > libusb:003:005
> > [pixma] Scanner model found: Name MB2300(Canon MAXIFY MB2300 Series)
> > matches MB2300 series
> > [pixma] pixma_collect_devices() found Canon MAXIFY MB2300 Series at
> > bjnp://192.168.1.5:8612/timeout=1000 <
> http://192.168.1.5:8612/timeout=1000>
> > [pixma] pixma_open(): Canon MAXIFY MB2300 Series
> > [pixma] *mp150_open***** This is a generation 5 scanner.  *****
> > [pixma] Reader task started
> > [pixma]
> > [pixma] [pixma] Reader task id=139915254597376 (threaded)
> > scanimage: scanning image of size 638x1050 pixels at 24 bits/pixel
> > scanimage: acquiring RGB frame
> > 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=0x704fc8 source=1
> > [pixma]   threshold=127 threshold_curve=0
> > [pixma]   adf-wait=0
> > [pixma]   ADF page count: 0
> > [pixma] WARNING:send_time() disabled!
> > [pixma] Current status: paper=0 cal=0 lamp=0 busy=0
> > [pixma] pixma_scan() failed ECANCELED
> > [pixma] read_image():reader task closed the pipe:0 bytes received,
> > 2009700 bytes expected
> > [pixma] Reader task terminated: ECANCELED
> > scanimage: min/max graylevel value = 255/0
> > scanimage: sane_read: Operation was cancelled
> > [pixma] pixma_close(): Canon MAXIFY MB2300 Series
> >
> > Seems that pages in the ADF are not recognised: see "ADF page count=0".
> >
> >
> > Il giorno sab 27 gen 2018 alle ore 18:05 Rolf Bensch
> > <rolf at bensch-online.de <mailto:rolf at bensch-online.de>> ha scritto:
> >
> >     Hi Patrick,
> >
> >     Please scan all scan options (color, grayscale, lineart, 75...600
> >     dpi) from flatbed.
> >
> >     Then test the document feeder with your preferred settings (e.g. A4,
> >     300 dpi) and the whole sheet size. With a single sheet and multiple
> >     sheets. At least test duplex scanning from ADF, single sheet and
> >     multiple sheets.
> >
> >     I'm getting the best ADF scan results with gscan2pdf (I really never
> >     got best results using scanimage or xsane). For scanning single
> >     sheets from flatbed or ADF (one side only) you can use your favorite
> >     frontend, e.g. xsane.
> >
> >     If you might have problems, please test also connected with USB only.
> >
> >     Many thanks for report.
> >
> >     Cheers,
> >     Rolf
> >
> >
> >     Am 26.01.2018 um 00:33 schrieb Patrick Roncagliolo:
> >>     I forgot to specify that obviously SANE driver worked and allowed
> >>     me to do some scans with Xsane and ScanImage.
> >>     My reference to ScanGearMP is simply for completeness, but does
> >>     not relate with the main point of my previous mail.
> >>
> >>     So, rephrasing:  "I can say LibSane works with MB2350 via LAN
> >>     connection".
> >>
> >>     Il giorno ven 26 gen 2018 alle ore 00:27 Patrick Roncagliolo
> >>     <ronca.pat at gmail.com <mailto:ronca.pat at gmail.com>> ha scritto:
> >>
> >>         Hello,
> >>         I saw testers are needed for this series of scanners.
> >>
> >>         I have a Canon Maxify MB2350 scanner, connected through LAN.
> >>         I can detect the scanner from Canon ScanGearMP 3.40 from
> >>         Ubuntu Linux 16.04.
> >>         I added "bjnp://192.168.1.5 <http://192.168.1.5>" to my
> >>         pixma.conf file, where 192.168.1.5 is my scanner IP address.
> >>         LibSane is taken from the daily git snapshots from
> >>         RolfBensch's PPA (now: 1.0.27+git20180122).
> >>
> >>         _I can say it works._ But I hope to help more if I can. So: is
> >>         there a way to do something useful other than scanning a
> >>         random sheet of paper? Do you have standard tests or data
> >>         collection procedure that could help you to improve support or
> >>         verify that all is working great? Do you need some packet
> >>         sniffing or something like that?
> >>
> >>         Best regards,
> >>         Patrick Roncagliolo
> >>
> >
>
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