No assignee for this patent application has been made.Reporters obtained the following quote from the background information supplied by the inventors: ““The present disclosure relates to a robot inspection system.“JP-A-5-004179 discloses a method of performing an origin calibration of an arti culated robot using ajig shaft.“However, in the origin calibration method for an articulated robot of JP-A-5-00 4179, the origincalibration is performed using the jig shaft in a location wher e the articulated robot to be inspectedis placed, and an environment in which t he articulated robot is placed may affect an inspection result.Accordingly, acc uracy of the origin calibration may vary or become lower.”