A miniaturized X-ray source is disclosed. Structural members each partition off a space between nearby image forming cartridges mounted to the apparatus body. A satellite navigation unit determines an absolute position of the motor vehicle and digital map data with position attribute data for checking whether the motor vehicle is located in a vicinity of road areas with restricted scope for navigation and in such a case suggests recording of a trajectory to a driver of the motor vehicle or executes the recording of the trajectory in an automated manner. The member services system may control voter information for all members of a group eligible to vote in a specific election. As a result, needless updating of the integral term when the deviation of the target fuel pressure and the actual fuel pressure has transiently increased is inhibited, and fuel pressure overshoot is reliably suppressed.