SNMP Settings Take Printer Offline
https://community.spiceworks.com/topic/89870-snmp-settings-take-printer-offline
关闭SNMP选项，解决联机无法打印
https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/guan-biSNMP-xuan-xiang-jie-jue-lian-ji-wu-fa-da-yin/td-p/736613