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

Patrick Roncagliolo ronca.pat at gmail.com
Sat Mar 17 18:51:09 UTC 2018

Regarding ADF support, I can tell you a difference between two situations:

ADF empty: backend hangs a while, than I can read "scanimage: sane_read:
Document feeder out of documents"
ADF with sheets loaded: operation hats instantaneously, and I can read
"scanimage: sane_read: Operation was cancelled"

I can send you some files (scanimage logs and wireshark dumps) if you want.

Il giorno sab 17 mar 2018 alle ore 19:35 Patrick Roncagliolo <
ronca.pat at gmail.com> ha scritto:

> I have empty iptables.
> By reading manpages, I found that /etc/sane.d was not in
> I put there "bjnp://", lanched scanimage -L and it finally
> worked.
> One question/curiosity: scangearmp2 (Canon proprietary scan tool for
> linux) sends a discovery probe on port 8611 instead of 8612, and behaves
> differently from the pixma backend. Is there some reverse-engineered
> documentation about the BJNP messages, types, codes? I imagine so, given
> that pixma-backend exists, but I had no success in finding it.
> Il giorno sab 17 mar 2018 alle ore 14:47 Louis Lagendijk <louis at fazant.net>
> ha scritto:
>> On Tue, 2018-03-13 at 21:17 +0000, Patrick Roncagliolo wrote:
>> Hi,
>> I tested pixma version 0.17.46 thru USB. It works.
>> However, after updating from your PPa, I'm not able to discover my
>> printer on the network. pixma.conf seems to be ignored, no matter if I set
>> the IP and multiple port combinations (8610, 8611, 8612, but whit wireshark
>> I see only requests as broadcast on ports 8610 8612). What could have been
>> changed? Any hints about some dumb things that I can have forgotten since
>> last configuration?
>> Il giorno dom 11 mar 2018 alle ore 12:26 Rolf Bensch <
>> rolf at bensch-online.de> ha scritto:
>> Hi Patrick,
>> I just added button support for your scanner.
>> If you're fetching the sources from git you can start testing now.
>> Otherwise you must wait 'til tomorrow to get the update from my ppa.
>> Button support is basicly implemented in standard frontends. You should
>> use gscan2pdf to get best results. Or if you're familiar programming
>> bash scripts, you can use scanbd
>> (https://sourceforge.net/projects/scanbd/). If you like I can provide my
>> pixma scripts.
>> Hope this helps.
>> Cheers,
>> Rolf
>> I have an MB5050 myself and that works pretty well.
>> Can you please (in a shell) do:
>> export SANE_DEBUG_BJNP=20
>> scanimage -L 2> log
>> and mail the resulting log file?
>> Some of the most recent Canon scanners no longer support bjnp, butthe
>> MB2000 is as far as I know of the same generation as my MB5050, so I expect
>> bjnp till to be supported.
>> Please check your firewall settings (see man sane-pixma) to be sure that
>> traffic does not get blocked. There should be no reason to modify the
>> pixma.conf file, unless you are on WIFI: ome users report problems oer WIFI.
>> See the bjnp-timeout settings in pixma.conf. A single line of
>> bjnp-timeout=5000
>> at the beginning of that file should in that case do the trick.
>> I decided against including that by default as it would cause long delays
>> for user using other backends
>> BR, Loujis
>> --
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