Abstract: A light generator includes a generator housing, an axle, a magnet, a coil device, a lamp unit, and a resistance unit. The generator housing is adapted to be secured to a rotatable object for co-rotation therewith, and is formed with an axle hole. The axle is mounted rotatably in the axle hole, and has a coupling end that extends out of the axle hole. The magnet is disposed in the generator housing, and is mounted co-rotatably on the axle. The coil device is mounted in the generator housing, and surrounds the magnet. The lamp unit is connected electrically to the coil device. The resistance unit is mounted on the coupling end of the axle to resist axial rotation of the axle. Rotation of the generator housing with the rotatable object induces electrical currents to enable the lamp unit to generate a light output.

Abstract: A light generator includes a generator housing, an axle, a magnet, a coil device, a lamp unit, and a resistance unit. The generator housing is adapted to be secured to a rotatable object for co-rotation therewith, and is formed with an axle hole. The axle is mounted rotatably in the axle hole, and has a coupling end that extends out of the axle hole. The magnet is disposed in the generator housing, and is mounted co-rotatably on the axle. The coil device is mounted in the generator housing, and surrounds the magnet. The lamp unit is connected electrically to the coil device. The resistance unit is mounted on the coupling end of the axle to resist axial rotation of the axle. Rotation of the generator housing with the rotatable object induces electrical currents to enable the lamp unit to generate a light output.

Abstract: In an electrophotographic copier a fusing station is provided at which a toner image previously formed on a copy carrier is fixed on the carrier by fusing. The fusing station includes a flash tube which, when discharged, produces the heat required for the fusing operation. The electrical energy required by the flash tube is supplied from a flash capacitor. To avoid current spikes during charging of the flash capacitor the same receives its current from a drive system which includes a motor-driven generator in circuit with the flash tube; the inertia of the drive system acts as a buffer between the flash capacitor and the current supply source and prevents the occurrence of current peaks during the charging of the capacitor.