HOST DEVICE AND METHOD FOR PERFORMING NETWORK DIAGNOSIS ON IMAGE FORMING DEVICE, IMAGE FORMING DEVICE ON WHICH NETWORK DIAGNOSIS IS PERFORMED, AND METHOD FOR CONTROLLING SAME

A host device for performing network diagnostics on an image forming apparatus is provided. The host device includes a communicator to receive, from the image forming apparatus, diagnostic raw data used for the network diagnostics on the image forming apparatus and receive, from a policy-providing server outside the image forming apparatus, a diagnostic policy that is a criterion of the network diagnostics, a memory storing a computer-executable instruction, at least one processor to execute the computer-executable instruction to generate a network diagnostics result of the image forming apparatus based on the diagnostic raw data and the diagnostic policy, and an input/output unit to output the network diagnostics result. The network diagnostics is performed on the image forming apparatuswithout upgrading the image forming apparatus, despite a change in the diagnostic policy for the network diagnostics. 本发明涉及种用于在图像形成设备上执行网络诊断的主机装置，该主机装置包括：通信单元，用于从图像形成设备接收要用于图像形成设备的网络诊断中的诊断原始数据，并且从图像形成设备外部的策略提供服务器接收用作网络诊断的标准的诊