[sane-devel] Canon ImageCLASS MF743cdw

Chris Richards gizmo at giz-works.com
Wed Mar 18 05:51:13 GMT 2020

On 2020-03-17 23:46, Alexander Pevzner wrote:
> Hi Chris,
> On 3/18/20 4:48 AM, Chris Richards wrote:
>> Greetings all,
>> I just bought this AIO Canon.  It has both USB and Network, and I have 
>> it on the network.  So far it's been doing what I need, but I have to 
>> use a Windows VM to talk to the scanner.  I've captured network 
>> packets when using the windows VM, and it appears to be using ports 
>> 8510/8512.  If I use the SANE Pixma configuration file to talk to it, 
>> I can see it sending packets over the network to the printer, but it 
>> fails to ID the printer.
> Does the following command find your printer on a network?
>   avahi-browse -rt _uscans._tcp

Is there something else I need to configure for this, because it wasn't 

> If yes (which is very likely), it means your device supports eSCL 
> protocol.
> At this case you may either use sane-escl driver, included into SANE,
> or sane-airscan driver, not (yet?) included into SANE:
> https://github.com/alexpevzner/sane-airscan
> For sane-airscan, binary packages for many popular distroc available 
> here:
> https://software.opensuse.org//download.html?project=home%3Apzz&package=sane-airscan
>> bInterfaceClass 7
>> bInterfaceSubClass 1
>> bInterfaceProtocol 4
> You printer also supports IPP-over-USB, so with a help of additional
> software it can be connected to USB but used as if was connected to
> the network. I can tell you more details, if you are interested.

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