Network printer is missing

[amphib]

I am running Cinnamon 20.2, version 5.0.5 on my Linux laptop.
My network printer is an Epson WF-3520. Prior to the latest upgrade the printer was working fine off of this machine. It also still works fine as a networked printer off of another non-linux laptop.
My Linux laptop no longer sees the printer at all. I do not know how to find it, since it is networked, and the network is working fine.
Any help?

[brian_p]

I am running Cinnamon 20.2, version 5.0.5 on my Linux laptop.
My network printer is an Epson WF-3520. Prior to the latest upgrade the printer was working fine off of this machine. It also still works fine as a networked printer off of another non-linux laptop.
My Linux laptop no longer sees the printer at all. I do not know how to find it, since it is networked, and the network is working fine.
Any help?

This printer is a modern, AirPrint device and should have been auto-setup for you. Let's try a manual setup. Give

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avahi-browse -rt _ipp._tcp

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avahi-browse -rt _uscan._tcp

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driverless

[amphib]

Ok. I did those three commands. My printer still does not show up.

[brian_p]

Ok. I did those three commands. My printer still does not show up.

You should be able to get IP address/WiFi status from the printer's front panel. What does it tell you?

[amphib]

It says wifi is working fine, and it is. Just not from my Linux machine. It functions perfectly from my wife's laptop via wifi. Same network.

[brian_p]

It says wifi is working fine, and it is. Just not from my Linux machine. It functions perfectly from my wife's laptop via wifi. Same network.

Your wife's laptop uses the same OS as you do?

My previous question was really an invitation for you to give the IP address of the printer.

[amphib]

No, she uses windows. Nothing has changed except the version of Cinnamon on my laptop. Printer has worked from both laptops for years prior to changing to 20.2.

-->> 192.168.0.11

[brian_p]

No, she uses windows. Nothing has changed except the version of Cinnamon on my laptop. Printer has worked from both laptops for years prior to changing to 20.2.

The Cinnamon version has nothing to do with printing. It is not a factor.

-->> 192.168.0.11

What do you get for

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ping -c3 192.168.0.11

[amphib]

PING 192.168.0.11 (192.168.0.11) 56(84) bytes of data.
64 bytes from 192.168.0.11: icmp_seq=1 ttl=64 time=288 ms
64 bytes from 192.168.0.11: icmp_seq=2 ttl=64 time=104 ms
64 bytes from 192.168.0.11: icmp_seq=3 ttl=64 time=320 ms

--- 192.168.0.11 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 104.115/237.251/319.669/95.026 ms

[brian_p]

PING 192.168.0.11 (192.168.0.11) 56(84) bytes of data.
64 bytes from 192.168.0.11: icmp_seq=1 ttl=64 time=288 ms
64 bytes from 192.168.0.11: icmp_seq=2 ttl=64 time=104 ms
64 bytes from 192.168.0.11: icmp_seq=3 ttl=64 time=320 ms

--- 192.168.0.11 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 104.115/237.251/319.669/95.026 ms

The printer is seen by using its IP. It is not seen by driverless. Two possibilities:

• libnss-mdnsis not installed or not working correctly.

• A firewall is blocking mdns traffic.

[amphib]

I am not aware of any firewalls and no clue about libnss-mdnsis.

[pdc_2]

curious amphib if you open the PRINTERS folder; do you see any icons there?

If so; if you delete the icon(s)

and go to ADD printer ....... do you see anything .......

[amphib]

It says no printers configured yet.

Under add it has:

generic cups-brf
enter url
network printer
>find network printer
windows printer via samba
internet printing protocol (ipp)
appsocket/hp jetdirect
internet printing protocol(https)
lpd/lpr host or printer
internet printing protocol(ipps)

[brian_p]

I am not aware of any firewalls and no clue about libnss-mdnsis.

I believe

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sudo iptables -L

would show firewall rules.

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dpkg -l libnss-mdns

tells us if that package installed. Please provide both outputs.

Now for a test. You need to use two terminals for it. In one terminal execute

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avahi-publish -s test _test._tcp 0

Then in the second terminal run

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avahi-browse -rt _test._tcp

Report what happens in both terminals.

[amphib]

Output:
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination


Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-=================-===============-============-============================>
ii libnss-mdns:amd64 0.14.1-1ubuntu1 amd64 NSS module for Multicast DNS>
lines 1-6/6 (END)




Terminal 1:
Established under name 'test'

Terminal 2:
+ wlp2s0 IPv6 test _test._tcp local
+ wlp2s0 IPv4 test _test._tcp local
+ lo IPv4 test _test._tcp local
= wlp2s0 IPv6 test _test._tcp local
hostname = [erndog-Satellite-C655.local]
address = [2600:8805b00:a838474c:f73]
port = [0]
txt = []
= wlp2s0 IPv4 test _test._tcp local
hostname = [erndog-Satellite-C655.local]
address = [192.168.0.31]
port = [0]
txt = []
= lo IPv4 test _test._tcp local
hostname = [erndog-Satellite-C655.local]
address = [127.0.0.1]
port = [0]
txt = []

[amphib]

Turns out the setup on the physical printer got hosed somehow. I redid the setup and all is well. Thanks for all your attempted help.

[pdc_2]

pleased all is well;

can you tell us more on what

Turns out the setup on the physical printer got hosed somehow.

all means please

[brian_p]

Output:
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

No firewall rules to interfere with mDNS discovery.

Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-=================-===============-============-============================>
ii libnss-mdns:amd64 0.14.1-1ubuntu1 amd64 NSS module for Multicast DNS>
lines 1-6/6 (END)

libnss-mdns is installed. mDNS discovery is operative.

Terminal 1:
Established under name 'test'

Terminal 2:
+ wlp2s0 IPv6 test _test._tcp local
+ wlp2s0 IPv4 test _test._tcp local
+ lo IPv4 test _test._tcp local
= wlp2s0 IPv6 test _test._tcp local
hostname = [erndog-Satellite-C655.local]
address = [2600:8805b00:a838474c:f73]
port = [0]
txt = []
= wlp2s0 IPv4 test _test._tcp local
hostname = [erndog-Satellite-C655.local]
address = [192.168.0.31]
port = [0]
txt = []
= lo IPv4 test _test._tcp local
hostname = [erndog-Satellite-C655.local]
address = [127.0.0.1]
port = [0]
txt = []

This show that avahi is correctly set up.

Thanks for the info. The system appears to be in good shape. The next stage would have been to move on to whether the printer is multicasting mDNS packets. However, amphib got there first and has discovered it isn't. Maybe AirPrint was turned off?

amphib, you should edit the subject in your first post and add [SOLVED] to it.