Patent ID: 7725775

Claim:
A network system, comprising: a printing device; and a plurality of management devices configured to manage the printing device, the plurality of management devices connected with the printing device via a network, wherein the printing device comprises: a plurality of communication interfaces that are individually connected to the network; a trouble detecting system configured to detect one or more of a plurality of potential troubles in the printing device; a trouble notification management information storing system configured to store trouble notification management information comprising a dataset storing at least one association between at least one of the plurality of potential troubles, at least one of the plurality of management devices, at least one of the plurality of communication interfaces, and a delivery method; and a trouble notifying system configured to deliver trouble notifying information about each of the plurality of potential troubles to each management device associated with the potential trouble, via the communication interface and the delivery method associated with the potential trouble and the management device wherein the plurality of management devices comprises a first management device and a second management device, wherein the dataset of the trouble notification information storing system is configured to store an association between a detected trouble, the first management device, a first communication interface, and a first delivery method and the dataset of the trouble notification information storing system is configured to store an association between the detected trouble, the second management device, a second communication interface, and a second delivery method, such that when the trouble detecting system detects the detected trouble, the trouble notifying system is configured to deliver trouble notifying information to the first management device using the first delivery method via the first communication interface, and to deliver trouble notifying information to the second management device using the second delivery method via the second communication interface, and wherein each of the plurality of the management devices comprises a receiving system configured to receive the trouble notifying information from the printing device.