Exemplary embodiments are directed to a method for producing a circuit-breaker pole part that includes an external insulating sleeve made of a solid synthetic material for supporting and housing a vacuum interrupter insert for electrical switching a medium-voltage circuit. The transporttransfer belt unit is detachably arranged on a main body of an image forming device. The first determination unit determines whether setting values cause an inconsistency. The baseline chopper circuit topology includes a first semiconductor-based circuitry in an enclosure for accommodating the first semiconductor-based circuitry.