Performed is conveying-error correction in accordance with the kind and the number of rollers that are actually involved in the conveying of a printing medium. A run list is provided allowing a coprocessor to switch from one task to the next, without waiting for CPU intervention. The oxide film may be a Si02, for example, the nitride film may be a TiN film or a SiN film, the film made up of a nitride and an oxide may be a SiNO film, and the metal film may be a Ti film or a Pt film, for example. The transmission unit receives the data from the connection unit and stores the data in the first area of a register array. For this purpose, the process includes the steps of: depositing a structured glass layer having at least one opening over a contact-connection region by evaporation coating on the substrate, and applying at least one conductor structure to the structured glass layer so that the at least one conductor has electrical contact with the contact-connection region. Therefore, the servo controller can reduce vibrations that originate from the characteristics of the machine.