On Tue, 24 Nov 2020 19:04:08 +0000 (UTC), Arlen Holder wrote:

On Fri, 06 Nov 2020 12:15:39 GMT, AnthonyL wrote:

I'm a long time user of
https://angryip.org/

I have a similar question, of greater detail, in that I know what my
printer IP address is, but I don't know how to find the _port_.

Tried nmap on Linux?

I found an Officejet 6600 on the sidewalk and after it was still there
after hours I took it home. Print head was jammed so it did strange
grinding noises. After freeing it the printer did some maintenance and
worked. To my amazement the cartridges were 75 to 80% full.

Anyway I was able to get it running using CUPS when I used the PC as WIFI
hotspot (although I have to use a black ad white driver as the driver
found automatically refused.

It also works when I start the printer with its own WIFI. But if I put it
into the home WIFI it can't be found by hp-setup or the CUPS web
interface. A port scan says:

Not shown: 997 closed ports
PORT STATE SERVICE
111/tcp open rpcbind
139/tcp open netbios-ssn
445/tcp open microsoft-ds

No printer ports, like 631, 515 or web interface (80). They show only
when the printer creates its own WIFI hotspot. I don't know why.
--
Andreas

PGP fingerprint 952B0A9F12C2FD6C9F7E68DAA9C2EA89D1A370E0