thanks for your input
As far as I know I don't have a printer control panel, I originally set the printer up using the WPS facility in the router so it did it all automatically
The command you posted this, 192.168.2.1 is my gateway ip
graeme@Linux3 ~ $ nmap -sP 192.168.2.1/24
Starting Nmap 5.21 ( http://nmap.org ) at 2013-05-11 23:49 BST
Nmap scan report for 192.168.2.1
Host is up (0.0017s latency).
Nmap scan report for Windows1 (192.168.2.2)
Host is up (0.049s latency).
Nmap scan report for 192.168.2.5
Host is up (0.00025s latency).
Nmap scan report for 192.168.2.17
Host is up (0.0080s latency).
Nmap scan report for 192.168.2.100
Host is up (0.0055s latency).
Nmap done: 256 IP addresses (5 hosts up) scanned in 2.47 seconds
graeme@Linux3 ~ $
none of these show the printer
192.168.2.2 = A windows XP machine
192.168.2.5 = This PC
192.168.2.= My Grand-Daughters Linux PC
192.168.2.100 = Freenas Box