I have a DHCP thing on my HP printer. How can I find information on numbers for that?
What "information on numbers for that" "DHCP thing" do you think you need?
There should be one DHCP server on the LAN segment the printer is in, and that should supply any relevant data, and list its "customers". You should be able to list IP, subnet mask, DNS server, etc. from the printer menu.
I would have thought it more likely that a printer would be a DHCP client that would broadcast to the local area and would act on a response telling it what network details to use. I'm not sure what else you need.
If you need to connect to the printer, you can either look on the printer for the assigned IP address (although that may change over time) or you get the MAC address from the printer and reserve it an address on the DHCP server.
Do you have a DHCP server?
Robin