A RAID controller uses a method to identify a storage device of a redundant array of storage devices that is returning corrupt data to the RAID controller. In addition, it is possible to increase the tensile strength and to prevent the excessive tension from being applied to the optical fibers, so that it is possible to keep the favorable transmission characteristics. The triangular plate is connected to the vessel in a fixed connection point or may be connected to a tensioning device on the vessel. The sensors also provide the controller with signals corresponding to the detected water temperature. The ECU can communicate with the radio to inhibit speakers in communication with the radio from emitting sound while each LF field to wake up the tire sensors is being transmitted. When the shielding member is located at the first position, at least a part of the heat generating member is disposed between the corona charging member and the image bearing member.