[sane-devel] Canon laser multi-functional support: MFNP protocol

[Louis Lagendijk]

On Mon, 2015-06-22 at 14:58 +0300, Michael Shigorin wrote:
> On Wed, Apr 01, 2015 at 06:19:05PM +0200, Louis Lagendijk wrote:
> > Before anything: if scanning over USB  does not work, trying to
> > scan over the network is bound to fail.
> 
> Got that; both devices and a winxp vm are handy today (will be
> there next week hopefully too), here's a 15 Mb usbsnoop log:
> http://fly.osdn.org.ua/~mike/tmp/sane-pixma/Canon-iR1133-scan-300dpi.usblog.xz
> 
> > for the MF8540 first a question: what did you use to initiate the scan?
> 
> xsane and scanimage
> 
> MF8540Cdn and MF6140dn are available for testing/dumping right now,
> trying against today's git...
> 
> > It looks as if a scan was not attempted. Please try (over USB):
> > scanimage > filename
> > and see what happens.

Can you please try the fixes I submitted to GIT today to see if they fix
the network issue with the MF devices?

> Proper sounds but almost completely white image:
> http://fly.osdn.org.ua/~mike/tmp/sane-pixma/Canon-MF8540Cdn-scanimage.ppm.xz

how did you scan? Please try 
scanimage > test.ppm
to avoid problems due to settings from xsane etc. 

> 
> > As you saw it is not clear whether the device is supported with
> > the current pixma backend. Maybe somebody on the list that
> > knows the backend better than I do can help you with that (the
> > MF8500 series is listed in pixma_imageclass.c, so it is
> > probably possible to get it working, I only wrote the
> > networking code).
> 
> Thank you :-)

> 
> > the ImageRunner 1133 is listed too in the same file, so getting
> > it to work is probably possible too
> 
> It _does_ work for me as of RELEASE_1_0_24-292-g8c51579:
> http://fly.osdn.org.ua/~mike/tmp/sane-pixma/Canon-iR1133iF-scanimage.ppm.xz
> (the same vendor provided test print)
> 
> > The MF6100 series is not listed, but it again might be quite
> > possible to get it to work.
> 
> The same almost white image as with 8540:
> http://fly.osdn.org.ua/~mike/tmp/sane-pixma/Canon-MF6140dn-scanimage.ppm.xz
> 
As Rolf commented in a mail from April 3 the MF6100 series is added in
GIT, so it should work now. 
so please try scanning with scanimage and see if that works over USB and
if it works over the network after todays fixes.

Kind regards, Louis