Ping -t "request time out" on a network HP k8600 printer.

Hi all, I have recently installed a network printer and had many problems. I've changed the IP address 3 times to resolve and still cannot. When I do a continuous ping to the printer (approximately 100, I had 4 request time outs). The 4/5 clients using the printer are having problems printing to it. I'm sure that request time outs are the problems behind this. I did a tracert, and it...