Install the printer, the printer original address is 169.254, mask 255.255.0.0, the printer directly connected to the office LAN network after a hub, found in 50 segment of the computer network (mask 255.255.255.0) can ping printer 169 this address directly, and can log on the address page, computers are not sure whether serial hub, it is possible that the pick up on the hub, could also not too messed up not sure) (office, but even if the computer and printer are on the same hub, can also directly to each other??????