[sane-devel] Canon i-sensys MF720C Series is not supported by sane-pixma backend

[Petr Cibulka]

Dear developers,

I have a Canon i-sensys MF724Cdw multifunction device, which is 
recognized by |sane-find-scanner| as:

*|USB scanner (vendor=0x04a9 [Canon,Inc.], product=0x27b5 [MF720C 
Series]) at libusb:001:005|*

Unfortunately, it is not recognized and supported by SANE.

I have investigated in the supported device list and found the most of 
Canon devices is supported by the |sane-pixma| backend, namely i-SENSYS 
MF730 Series (0x04a9/0x27e4) has status Good (as Ethernet and WiFi have 
not been tested yet).

Neither i-SENSYS MF720C Series nor i-sensys MF724Cdw (0x04a9/0x27b5) is 
mentioned in the compatibility table, so that no backend supports them 
at the moment.

What is necessary to do to support these model?

I guess it should be supported by |sane-pixma| backend as well, perhaps 
only its ID is missing in the backend code.

I have tried to find some contact details to |sane-pixma| backend 
authors - no success (lot of broken links or pages updated ten years ago).

I am not sure if |sane-pixma| backend is maintained in general.

I can contribute with testing if necessary.

Thanks for any info and/or contact,

Petr

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