[sane-devel] Canon imageCLASS MF5770 does not work with sane
Nicolas Martin
nicolas0martin at gmail.com
Thu May 14 21:30:10 UTC 2009
Hmm, this MF5770 holds a CCD device, like the MP750, that's why it
requires a calibration sequence.
Yes, a first step would be to try with the current MP750 backend file,
and see how it goes.
Jerry:
Could you test the attached 2 files, simply replace the ones in your
current git tree, in subdir sane-backends/backend with those 2 new ones
in the archive, and recompile/reinstall
In this case, take a logtrace as you did previously, and send it back.
Also, as Dennis suggested, could you take a longer USB snoop to get the
whole scan sequence ?
Nicolas
Le mercredi 13 mai 2009 à 18:16 -0700, Dennis Lou a écrit :
> --- On Wed, 5/13/09, Nicolas Martin <nicolas0martin at gmail.com> wrote:
> > Dunno if you still own your ImageClass device, but as you
> > were more
> > expert than me on this part of the pixma backend, I
> > naturally dare
> > proposing you, if you can, to have a quick look at what's
> > going on
> > here.
>
> Yup, still have it and I happened to catch the exchange on the mailing
> list archive when I was browsing it. Bad timing too, as I had just
> cleaned out my old imageclass dev files and started a couple other
> hacking activities a few days ago :-)
>
> Anyway, I took a quick peek at the provided log. First of all, it's a
> bit too short. A little longer log might be helpful.
>
> Secondly, the protocol looks a lot more like the mp750 based on:
> - Calibration cmd (0xe920) is in the logs like mp730/mp750 but not
> iclass
> - cmd_read_image length (10) is same as mp730/mp750 and unlike iclass
> (11)
> - cmd_err_info (0xff20) is in mp750 and iclass but not mp730
>
> Perhaps try taking the USB ID out of pixma_imageclass.c and put it in
> pixma_mp750.c? I can keep digging into the log if you want and
> hopefully Jerry can supply a better one, but that's my initial
> impression.
>
> -Dennis
>
> P.S. I find it a bit curious that a laser-based MFP would need
> calibration. Aren't these things supposed to be quick-start for when
> the user wants to use it as a copier machine?
>
>
>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: test1-mf5770.zip
Type: application/zip
Size: 11573 bytes
Desc: not available
URL: <http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20090514/319938bf/attachment.zip>
More information about the sane-devel
mailing list