Canon Pixma G3501 at *Ubuntu 18.04 LTS: help needed to get the scanner running.

[Brian]

On Sun 13 Sep 2020 at 12:01:49 +0200, Bas G. Roufs wrote:

> OK, I have disconnected the USB cable at both sides. Interesting. I get
> exactly the same result:
> 
> bas at Viaconsensus-iter:~$ scanimage -L
> device `pixma:G3000_192.168.2.12' is a CANON Canon PIXMA G4000 Series
> multi-function peripheral
> bas at Viaconsensus-iter:~$

Lets continue checking that the 3501 is reachable.

What do you get with 'ping -c 3 192.168.2.12'? Can you access the 3501's
web interface with http://192.168.2.12 in the address bar of a browser?

> > Also provide the outputs from
> > 
> >    avahi-browse -rt _ipp._tcp
> 
> The result I get from that command looks good:
> 
> bas at Viaconsensus-iter:~$ avahi-browse -rt _ipp._tcp
> + wlp3s0 IPv6 Canon G3000 series @ Viaconsensus-iter Internet Printer    
> local
> + wlp3s0 IPv4 Canon G3000 series @ Viaconsensus-iter Internet Printer    
> local
> + enp0s25 IPv6 Canon G3000 series @ Viaconsensus-iter Internet Printer    
> local
> + enp0s25 IPv4 Canon G3000 series @ Viaconsensus-iter Internet Printer    
> local
> +     lo IPv4 Canon G3000 series @ Viaconsensus-iter Internet Printer    
> local
> = enp0s25 IPv6 Canon G3000 series @ Viaconsensus-iter Internet Printer    
> local

Thanks for the data. It's ok, but it does not show any Bonjour broadcasts
from the 3501. Puzzling!

You have wireless (wlp3s0) and ethernet (enp0s2) interfaces available on
the computer and can access your network with both of them.

> bas at Viaconsensus-iter:~$ avahi-browse -rt _uscan._tcp
> bas at Viaconsensus-iter:~$
> 
> In other words - the command avahi-browse -rt _uscan._tcp does not deliver
> any result.

That's ok. The data is from the computer. Computers do not supply a uscan
service.

> The above test is another indication that the wireless connection apparently
> functions. However .... do I need to install some extra piece of software -
> from Canon or our own repos or elsewhere? Or is there anything else I need
> to do?

Let's see what we get from what I have asked for. I do have some
alternative software in mind, Bas.

Cheers,

Brian.