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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