[sane-devel] Scanner with IP on a different network

[AG]

On 4/25/22 16:16, Ralph Little wrote:
> Hi,
>
>
> On 2022-04-25 03:25, AG via sane-devel wrote:
>>
>>
>> On 4/25/22 12:21, AG via sane-devel wrote:
>>>
>>>
>>> On 4/25/22 11:25, Thierry Huchard wrote:
>>>> Le 2022-04-25 10:43, AG via sane-devel a écrit :
>>>>> I am using Linux Mint, Simple Scan and Canon MF210 scanner-printer 
>>>>> combo.
>>>>>
>>>>> The MF210 is on a different subnetwork and cannot be found by SANE /
>>>>> Simple Scan.
>>>>>
>>>>> With the printer driver I can specify the IP address in the 
>>>>> properties
>>>>> configuration window and it will find it and it works but SANE will
>>>>> only search the subnetwork by itself and not allow me to specify 
>>>>> an IP
>>>>> address.
>>>>>
>>>>> Is there a way that I could get SANE to work with an IP address
>>>>> outside of my network?
>>>>
>>>> Hi,
>>>>
>>>> Which driver are you using?
>>>> scanimage -L
>>>>
>>>> Thierry
>>>
>>> I apologize for my ignorance but I thought SANE /was/ the driver or 
>>> SANE used some system driver.
>>> The scanner does work when connected to the same subnetwork as it is 
>>> detected correctly but it cannot be found when connected to a 
>>> different subnetwork.
>>> If I ever installed a driver for the scanner I do not remember doing 
>>> so but I would have downloaded it from the official Canon web site.
>>> I have searched the system hw using hardinfo and other commands like 
>>> lshw but cannot find any mention of a driver that I can identify as 
>>> relating to the scanner.
>>> What can I do to find out?
>>
>> OK, just realized:
>>
>> scanimage -L
>> device `pixma:MF210_d8492f583058' is a CANON Canon i-SENSYS MF210 
>> Series multi-function peripheral
>
> You can put the IP address at the bottom of the file 
> /etc/sane.d/pixma.conf e.g.
>
> mfnp://192.168.1.3
>
> ...substituting your device's IP address.
>
> SANE is really a framework/API and a set of backend drivers for an 
> array of devices.
> Thierry's question was because Canon devices use a number of different 
> protocols (and therefore backend/drivers) depending on their age.
> In your case, it is using the pixma backend with the mfnp protocol.
> Newer devices require the escl backend.
>
> According to our supported scanners page here:
>
> http://www.sane-project.org/sane-mfgs.html
>
> ... the pixma backend is used to support the MF210 for USB, Wifi and 
> wired Ethernet.
>
> Cheers,
> Ralph

Thanks Ralph, I do not quite understand the technical explanation but I 
will try editing the pixma.conf file and see if that does the trick.

Alf

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