Xsane & Simplescan not detecting scanner

When I run scanimage -L there is no output, even after 5 minutes.

> I have a Lexmark MC3326..

Lexmark? This is a channel for supporting *HP* devices.

What is your distribution?

Sorry for my error.
Should I post my question on the Ubuntu channel?
My distribution is Ubuntu 21.04 Hirsute Hippo

> Sorry for my error.

No problem.

> Should I post my question on the Ubuntu channel?

It would have been more appropriate. OTOH, you are already here,
so post what you get for

  scanimage -L

and

  airscan-discover

scanimage -L does not produce any output
john@john-H81M-S2H-GSM:~$ sudo scanimage -L
[sudo] password for john:

Here is the output of airscan-discover:
john@john-H81M-S2H-GSM:~$ sudo airscan-discover
[sudo] password for john:
[devices]
  Lexmark MC3326adwe = http://192.168.1.75:80/eSCL/, eSCL
  Lexmark MC3326adwe = https://192.168.1.75:443/eSCL/, eSCL
  Lexmark MC3326adwe = http://[2001:569:bd12:9e00:76ee:2aff:febc:fb66]:65004/Scanner1/WebServices, WSD
  Lexmark MC3326adwe = http://192.168.1.75:65004/Scanner1/WebServices, WSD
  Lexmark MC3326adwe (USB) = http://127.0.0.1:60001/eSCL/, eSCL

Can you scan with

  xsane "http://192.168.1.75:80/eSCL/"
  xsane "http://127.0.0.1:60001/eSCL/"
  xsane "http://192.168.1.75:65004/Scanner1/"

simple-scan in place of xsane is also suitable.

No.

Running the command in a terminal produced:
Failed to load module "canberra-gtk-module"

Running xsane "http://127.0.0.1:60001/eSCL/" in a terminal produced:
john@john-H81M-S2H-GSM:~$ xsane "http://127.0.0.1:60001/eSCL/"
Gtk-Message: 16:52:03.343: Failed to load module "canberra-gtk-module"

and opening xsane "http://192.168.1.75:65004/Scanner1/" in a terminal produced:
john@john-H81M-S2H-GSM:~$ xsane "http://192.168.1.75:65004/Scanner1/"
Gtk-Message: 16:53:40.176: Failed to load module "canberra-gtk-module"

I found a libcanberra-gtk-module on Synaptic and installed it but it doesn't allow me to scan

Sorry, John. I cannot take this any further. No output from 'scanimage -L'
is worrying.

Thank you for your help
John

Apologies, John. My previous advice was sub-optimal because the lack of
'scanimage -L' output disturbed me..

 Please try scanimage -d "airscan:e0:192.168.1.75:80/" > image.pnm

Hi Brian
Thank you for getting back to me.
I opened the question on the Ubuntu channel as question 699066 so I am posting this there as well.

The output of scanimage -d "airscan:e0:192.168.1.75:80/" > image.pnm is:
john@john-H81M-S2H-GSM:~$ scanimage -d "airscan:e0:192.168.1.75:80/" > image.pnm
Output format is not set, using pnm as a default.

The desktop scanner starts up and scans an image in .pnm format into my home folder

> The desktop scanner starts up and scans an image in .pnm format
> into my home folder

Good. You should be able to substitute xsane or simple-scan for scaniage.
in the command (leave off the -d). No output from 'scanimage -L' will
probably still prevent auto-scanning with xsane. However, you now have a
way of scanning.

I had better inform you that you scanned with the sane-airscan driver.
sane-aircan is installed and used by default on 21.04. The Lexmark
driver is not being used and will not be used because you are also
using ipp-usb by default. See sections 14, 15 and 16 at

  https://wiki.debian.org/CUPSDriverlessPrinting

john@john-H81M-S2H-GSM:~$ xsane "airscan:e0:192.168.1.75.80/" > image.pnm
Killed
Produced xsane searching for scanners and unresponsive.
Is my command correct?

The correct command is

  xsane "airscan:e0:192.168.1.75.80/"

How's that?

Thank you for the correct command.
when I run it a window opes to tell me Xsane 0.999 is searching for devices and there the process stalls.
Next I get a message saying Xsane is not responding and I can quit or wait.

How about

  xsane "airscan:w0:192.168.1.75.80/" ?

The same thing.
Xsane is searching for devices which it never finds.

This could be a feature of xsane or simple-scan, if you have
tried it. scanimage is (or was) OK.

I hope you realise the lack of output from 'scanimage -L' is a
critical factor. Maybe purge the Lexmark scanner driver. It is
unneeded.

I completely removed the Lexmark driver using Synaptic.
Now scanimage -L has an output which is:
john@john-H81M-S2H-GSM:~$ scanimage -L
device `escl:https://192.168.1.75:443' is a Lexmark MC3326adwe platen,adf scanner
device `escl:http://127.0.0.1:60001' is a Lexmark MC3326adwe (USB) platen,adf scanner
device `airscan:e0:Lexmark MC3326adwe' is a eSCL Lexmark MC3326adwe ip=192.168.1.75
device `airscan:e1:Lexmark MC3326adwe (USB)' is a eSCL Lexmark MC3326adwe (USB) ip=127.0.0.1

Now xsane finds two devices and I am able to scan using the flatbed and the ADF!

Many thanks

Would you confirm you can scan with

  xsane "airscan:e0:Lexmark MC3326adwe" ?

Yes.
Simple scan is also working
Many thanks