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

摘要

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 apparatus without upgrading the image forming apparatus, despite a change in the diagnostic policy for the network diagnostics.