假设打印机的地址在192.168.10.*范围
nmap 扫描打印机命令
Starting Nmap 7.70 ( https://nmap.org ) at 2018-06-05 10:04 CST
Nmap scan report for 192.168.10.152
Host is up (0.039s latency).
PORT STATE SERVICE
9100/tcp open jetdirect
Nmap done: 256 IP addresses (13 hosts up) scanned in 75.35 seconds