IMAGE FORMING DEVICE AND SOFTWARE DIAGNOSTIC METHOD

摘要

PROBLEM TO BE SOLVED: To detect an error in a software program for a control service and an application so as to accurately and quickly locate a cause of a fault. SOLUTION: The image forming device is provided with a diagnostic application 117 that makes inter-process communication with a process of a control service or application 130 to detect a software error of the control service. The control service and application 130 define a diagnostic function for conducting simulating processing when called from the diagnostic application 117. The diagnostic application 117 applies a diagnostic function call processing to the control service or application 130 and detects a software error on the basis of the reception of a function value returned from the control service or application 130.